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Search Results (219)

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16 pages, 763 KiB  
Article
Estimation of Genetic Parameters for Body Weight and Its Stability in Huaxi Cows from Xinjiang Region
by Ye Feng, Wenjuan Zhao, Xubin Lu, Xue Gao, Qian Zhang, Bin Zhang, Bao Wang, Fagang Zhong, Mengli Han and Zhi Chen
Animals 2025, 15(15), 2248; https://doi.org/10.3390/ani15152248 - 31 Jul 2025
Viewed by 166
Abstract
In this study, we analyzed data from 2992 cows to comprehensively evaluate the adult weight (WEI), a key growth and body-size indicator, in West China cattle, aiming to estimate the related phenotypic and genetic parameters. The analysis focused on four weight traits while [...] Read more.
In this study, we analyzed data from 2992 cows to comprehensively evaluate the adult weight (WEI), a key growth and body-size indicator, in West China cattle, aiming to estimate the related phenotypic and genetic parameters. The analysis focused on four weight traits while considering non-genetic factors such as parity, season, year, and birth weight. Data were processed and corrected using a MIXED procedure and a multi-trait animal model. Results showed that these non-genetic factors significantly affected the weight traits (p < 0.05), which had high heritability (0.25–0.39) (p < 0.01). WEI is crucial for improving the genetic traits of cattle in western China and provides innovative approaches for optimizing herd management, enhancing the efficiency of genetic selection, and boosting beef cattle productivity. Full article
(This article belongs to the Section Cattle)
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22 pages, 3538 KiB  
Article
Evaluating the Effectiveness of Coxal Bone Measurements for Sex Estimation via Machine Learning
by Diana Toneva, Silviya Nikolova, Gennady Agre, Nevena Fileva, Georgi Milenov and Dora Zlatareva
Biology 2025, 14(7), 866; https://doi.org/10.3390/biology14070866 - 17 Jul 2025
Viewed by 288
Abstract
The pelvis is the most dimorphic part of the human skeleton, primarily because of its involvement in the birth process. Many sexually dimorphic traits are concentrated in the coxal bones, which form the larger part of the birth canal. The present study aimed [...] Read more.
The pelvis is the most dimorphic part of the human skeleton, primarily because of its involvement in the birth process. Many sexually dimorphic traits are concentrated in the coxal bones, which form the larger part of the birth canal. The present study aimed to assess the sex differences in coxal bone size and to develop machine learning (ML) models for sex estimation based on coxal bone measurements. The sample included abdominal computed tomography scans of 276 adult Bulgarians. Three-dimensional models of the pelves were generated using InVesalius. The three-dimensional coordinates of 34 landmarks located on the right and left coxal bones were collected in MeshLab. Based on the landmark coordinates, various measurements characterizing the coxal bones were calculated. The coxal bone dimensions were tested for significant differences with respect to sex, age, and laterality. Support Vector Machines and logistic regression were employed to train models for sex estimation. The results demonstrate strong sexual dimorphism in coxal bone dimensions along with some bilateral and age-related differences. The trained ML models classify male and female bones with very high accuracy, ranging between 95% and 100%. Full article
(This article belongs to the Section Medical Biology)
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12 pages, 299 KiB  
Article
Yhwh’s Unique Speaker: Jeremiah
by Georg Fischer
Religions 2025, 16(7), 897; https://doi.org/10.3390/rel16070897 - 13 Jul 2025
Viewed by 232
Abstract
In Jer 15:19, Yhwh calls the prophet Jeremiah “my mouth”. This unique designation highlights his importance and finds support in several other features: Jeremiah is portrayed as the promised successor to Moses (Jer 1:7, 9), opposes all other contemporary prophets (e.g., Jer 20; [...] Read more.
In Jer 15:19, Yhwh calls the prophet Jeremiah “my mouth”. This unique designation highlights his importance and finds support in several other features: Jeremiah is portrayed as the promised successor to Moses (Jer 1:7, 9), opposes all other contemporary prophets (e.g., Jer 20; 23; 26–29), and has many additional roles and activities. Furthermore, he shares traits with Yhwh’s servant from Isa 49 and 53. His ‘biography’ is extraordinary and is shown at length, unusual for the Latter Prophets, ranging from before his birth (Jer 1:5) to his disappearance in Egypt (Jer 43–44). His ‘confessions’ in Jer 11–20 testify to immense suffering and have become models for personal prayer. Like the prophet, his scroll is unique, too. No other biblical writing deals so extensively with trauma, exemplified at the downfall of Jerusalem in 587 BC, its roots, and its impact. This even leads to an uncommon structure of the scroll, ending with disaster in Jer 52, whereas all other scrolls of prophets contain hope as conclusions. Jer stands out with the analysis of guilt as cause for the catastrophe, yet it conveys also consolation, especially in Jer 29–33. In these chapters, elements for a renewed society emerge, corresponding to the name of the prophet, which signifies “Yhwh will raise up”. The real source for this change lies in the way Jer conceives the biblical God. No other writing in the Bible tells about his weeping, as a sign of helplessness vis-à-vis the continuing resistance of his people. Many prayers in the scroll, including the confessions, focus on the importance of an intimate, personal relationship with him, going beyond traditional piety in several aspects; Moshe Weinfeld has called them “spiritual metamorphosis”. The singularity of Jer applies also to its literary features. Its mixtures of poetry and prose, of divine and human speaking, of narratives about the prophet in first and third person are a challenge for every reader, as well as the ‘unordered’ chronology and retarded information. Jer excels in the use of other scrolls; the degree of intertextuality and the way of combining motifs from ‘foreign’ sources in a synthetic way are outstanding. To grasp fully its message requires familiarity with more than half of what later became the Hebrew Bible. Full article
17 pages, 520 KiB  
Article
Sociodemographic, Mental, and Lifestyle Correlates of Mediterranean Diet Adherence in Children Aged 6–9 Years: Findings from a Large National Survey in Greece
by Georgia-Eirini Deligiannidou, Konstantinos Papadimitriou, Aikaterini Louka, Sousana K. Papadopoulou, Maria Mentzelou, Maria G. Grammatikopoulou, Evmorfia Psara, Christos Kontogiorgis, Olga Alexatou and Constantinos Giaginis
Epidemiologia 2025, 6(3), 32; https://doi.org/10.3390/epidemiologia6030032 - 3 Jul 2025
Viewed by 527
Abstract
Background/Objectives: The Mediterranean diet (MD) is well-studied for its health-promoting effects, while the factors influencing adherence in children remain an important research focus. This study examines the sociodemographic, maternal, perinatal, and lifestyle determinants associated with MD adherence among children aged 6–9 years [...] Read more.
Background/Objectives: The Mediterranean diet (MD) is well-studied for its health-promoting effects, while the factors influencing adherence in children remain an important research focus. This study examines the sociodemographic, maternal, perinatal, and lifestyle determinants associated with MD adherence among children aged 6–9 years in an effort to identify key predictors and their impact on long-term nutritional habits. Methods: This study recruited 4851 children from diverse Greek rural and urban regions. The mothers of the enrolled children completed relevant questionnaires on their children’s sociodemographics, perinatal outcomes, anthropometric parameters, breastfeeding practices, and physical activity status. The enrolled children completed the Children’s Depression Inventory (CDI) and the State–Trait Anxiety Inventory for Children—State (STAIC-S) form to assess the presence of depression and anxiety symptoms, respectively. The KIDMED score was used to assess the MD compliance of the enrolled children. Results: The outcomes demonstrated that higher maternal education and family economic status gravitated toward increased MD adherence (p = 0.0071, p ˂ 0.0001), while exclusive breastfeeding (p ˂ 0.0001) and higher physical activity levels (p = 0.0101) were strong predictive factors for MD adherence, highlighting the role of early-life interventions in shaping dietary habits. In contrast, cesarean delivery (p = 0.0173) and higher birth weight (p ˂ 0.0001) were linked to lower MD adherence, indicating potential metabolic and behavioral predispositions. Notably, higher MD adherence correlated with lower prevalence of depressive and anxiety symptoms (p ˂ 0.0001, p = 0.0001), underscoring its potential protective role in mental health. Conclusions: Our findings highlight a complex interplay between early-life and dietary behaviors, while further longitudinal studies are needed to establish causality and optimize evidence-based nutritional strategies and education for childhood health and well-being. Full article
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13 pages, 754 KiB  
Article
Personality, Perinatal Anxiety, and Substance Use as Converging Determinants of Post-Partum Depression in South-East Europe
by Oana Neda-Stepan, Catalina Giurgi-Oncu, Adela Bosun, Omar Anwar Saleh Al Nakhebi, Codrina Mihaela Levai, Raluka Albu-Kalinovic, Brenda-Cristiana Bernad, Marius Gliga, Adriana Mihai, Radu Neamțu, Catalin Dumitru, Lavinia Stelea, Camelia Fizedean and Virgil Radu Enatescu
Medicina 2025, 61(7), 1149; https://doi.org/10.3390/medicina61071149 - 25 Jun 2025
Viewed by 333
Abstract
Background and Objectives: Evidence regarding how dispositional traits, antenatal anxiety, substance use, and obstetric events converge to shape post-partum depression (PPD) in South-East Europe is limited. We analysed 102 third-trimester women and followed them to six weeks post-partum, and 102 age-matched community controls [...] Read more.
Background and Objectives: Evidence regarding how dispositional traits, antenatal anxiety, substance use, and obstetric events converge to shape post-partum depression (PPD) in South-East Europe is limited. We analysed 102 third-trimester women and followed them to six weeks post-partum, and 102 age-matched community controls were used to (i) compare baseline psychological profiles, (ii) chart antenatal-to-post-partum symptom trajectories, and (iii) build an integrated model of clinically relevant PPD (Edinburgh Post-natal Depression Scale, EPDS ≥ 12). Materials and Methods: All 96 raw variables were forward–backward translated from Romanian, reconciled, and harmonized. The principal instruments used were EPDS, State–Trait Anxiety Inventory form Y (STAI-Y), Revised Obsessive–Compulsive Inventory (OCI-R), NEO Five-Factor Inventory (NEO-FFI-60), and the four-item Maternal Worry and Satisfaction Scale (MWSS). Results: Groups were age-matched (31.1 ± 5.4 vs. 30.3 ± 5.1 years, p = 0.268) but differed in urban residence (39% vs. 17%, p = 0.001) and current substance use (smoking 21% vs. 34%, p = 0.041; alcohol 6% vs. 22%, p = 0.002). Of five personality domains, only openness scored lower in peripartum women (26.1 ± 4.6 vs. 29.3 ± 5.2, p < 0.001). State anxiety rose significantly from pregnancy to puerperium (+5.1 ± 8.4 points, p < 0.001). Post-partum EPDS correlated most strongly with state anxiety (r = 0.62) and neuroticism (r = 0.50). A final model (pseudo-R2 = 0.30) identified post-partum state anxiety (OR 1.10 per point, 95% CI 1.05–1.15, p < 0.001) as the independent predictor; neuroticism showed a trend (OR 1.08, p = 0.081). Obstetric factors (prematurity, birth weight, caesarean section) were not significant. Conclusions: In this Romanian cohort, heightened state anxiety—in synergy with high neuroticism and lower openness—dominated the risk landscape of early onset PPD, whereas delivery mode and neonatal status were neutral. Routine perinatal mental health screening should therefore incorporate anxiety metrics alongside depression scales and brief trait inventories to refine preventive targeting. Full article
(This article belongs to the Section Psychiatry)
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12 pages, 226 KiB  
Article
Genetic Evaluation of Reproductive and Productive Traits in Zaraibi Goats Under Tropical Climatic Conditions
by Aya Esam Hemada, Heba Abd El-Halim Ahmed, Asmaa Zayed Mohamed, Adel Salah Khattab, Oludayo Michael Akinsola and Thiruvenkadan Aranganoor Kannan
Ruminants 2025, 5(2), 27; https://doi.org/10.3390/ruminants5020027 - 17 Jun 2025
Viewed by 346
Abstract
Understanding the genetic and phenotypic basis of economically important traits is essential for designing effective breeding programs in livestock. This study aimed to evaluate the phenotypic performance and estimate genetic parameters for one reproductive trait—litter size at birth (LSB)—and three pre-weaning growth traits—birth [...] Read more.
Understanding the genetic and phenotypic basis of economically important traits is essential for designing effective breeding programs in livestock. This study aimed to evaluate the phenotypic performance and estimate genetic parameters for one reproductive trait—litter size at birth (LSB)—and three pre-weaning growth traits—birth weight (BW), weaning weight (WW), and average daily gain (ADG)—in a population of 1888 Zaraibi kids born between 2018 and 2023. Genetic parameters were estimated using animal models implemented in the MTDFREML software. The overall least squares means (±standard error) for LSB, BW, WW, and ADG were 2.22 ± 0.02, 2.03 ± 0.01 kg, 10.22 ± 0.05 kg, and 90.00 ± 0.50 g/day, respectively. Statistical analyses indicated that month of birth, year of birth, and type of birth had significant (p < 0.05) effects on all traits, while the sex of the kids had no significant effect (p > 0.05) on LSB. Direct heritability estimates (h2d) derived from Model 1 (including additive genetic, permanent environmental, and residual effects) were 0.13 ± 0.01 for LSB, 0.30 ± 0.04 for BW, 0.38 ± 0.01 for WW, and 0.30 ± 0.10 for ADG. Under Model 2 (which incorporated maternal genetic effects and their covariance with direct genetic effects), maternal heritability (h2m) estimates for LSB, BW, WW, and ADG were 0.05 ± 0.01, 0.15 ± 0.01, 0.12 ± 0.01, and 0.14 ± 0.01, respectively. Overall, the results emphasize the importance of maternal genetic effects in influencing pre-weaning growth traits. Therefore, maternal genetic components should be explicitly considered in genetic evaluation and selection strategies aimed at improving early growth performance in Zaraibi goats. Full article
14 pages, 276 KiB  
Article
Genomic Selection for Early Growth Traits in Inner Mongolian Cashmere Goats Using ABLUP, GBLUP, and ssGBLUP Methods
by Tao Zhang, Linyu Gao, Bohan Zhou, Qi Xu, Yifan Liu, Jinquan Li, Qi Lv, Yanjun Zhang, Ruijun Wang, Rui Su and Zhiying Wang
Animals 2025, 15(12), 1733; https://doi.org/10.3390/ani15121733 - 12 Jun 2025
Viewed by 893
Abstract
This study aimed to identify the best model and method for the genomic selection of early growth traits in Inner Mongolian cashmere goats (IMCGs). Using data from 50,728 SNPs, the phenotypes (birth weight, BW; weaning weight, WW; daily weight gain, DWG; and yearling [...] Read more.
This study aimed to identify the best model and method for the genomic selection of early growth traits in Inner Mongolian cashmere goats (IMCGs). Using data from 50,728 SNPs, the phenotypes (birth weight, BW; weaning weight, WW; daily weight gain, DWG; and yearling weight, YW) of 2256 individuals, and pedigree information from 14,165 individuals, fixed effects were analyzed using a generalized linear model. Four single-trait animal models with varying combinations of individual and maternal effects were evaluated using the ABLUP, GBLUP, and ssGBLUP methods. The best model was selected based on a likelihood ratio test. Five-fold cross-validation was used to assess the accuracy and reliability of the genomic estimated breeding values (GEBVs). Birth year and herd significantly affected BW (p < 0.05) and WW, DWG, and YW (p < 0.01), while sex, birth type, and dam age had highly significant effects on all traits (p < 0.01). Model 4, incorporating direct and maternal additive genetic effects, maternal environmental effects, and their covariance, was optimal. Additionally, ssGBLUP achieved the highest GEBV accuracy (0.61–0.70), outperforming the GBLUP and ABLUP methods. Thus, ssGBLUP is recommended for enhancing the genetic progress in IMCGs. Under the best method, the heritability estimates for BW, WW, DGW, and YW were 0.11, 0.25, 0.15, and 0.23, respectively. Full article
14 pages, 370 KiB  
Article
Anxiety, Coping, and Self-Efficacy as a Psychological Adjustment in Mothers Who Have Experienced a Preterm Birth
by Agata Białas, Karolina Kamecka, Paweł Rasmus, Dariusz Timler, Remigiusz Kozłowski and Anna Lipert
J. Clin. Med. 2025, 14(12), 4174; https://doi.org/10.3390/jcm14124174 - 12 Jun 2025
Viewed by 652
Abstract
Background/Objectives: Research shows that mothers of premature infants can experience increased symptoms of anxiety, depression, and even a post-traumatic stress in comparison to mothers of healthy, full-term infants. The aim of this study was to analyze and compare anxiety, coping, and self-efficacy in [...] Read more.
Background/Objectives: Research shows that mothers of premature infants can experience increased symptoms of anxiety, depression, and even a post-traumatic stress in comparison to mothers of healthy, full-term infants. The aim of this study was to analyze and compare anxiety, coping, and self-efficacy in mothers who have and have not experienced a preterm birth, providing a basis for developing a targeted, mother-oriented support program that supports their adjustment to difficult situations. Methods: The study included 251 women, 112 of whom delivered infants prematurely (PTB group) and 139 who delivered infants at term (T-B group). Data were collected by using (1) The State-Trait Anxiety Inventory (STAI) Questionnaire, (2) the Generalized Self-Efficacy Scale (GSES), and (3) the Coping Inventory for Stressful Situations Questionnaire (CISS). Results: PTB women had higher results in anxiety in comparison to T-B women. Also, they were characterized by statistically significantly lower generalized self-efficacy and ability to cope with stress. PTB women more often presented the emotion-oriented coping style. Conclusions: A mother-oriented support program based on personal resources is a solution which could help mothers better adjust to difficult situations related to preterm birth child treatment and care. Full article
(This article belongs to the Special Issue Progress in Patient Safety and Quality in Maternal–Fetal Medicine)
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17 pages, 293 KiB  
Article
Estimation of Genetic Parameters of Growth Traits in the Inner Mongolia White Cashmere Goat (Erlangshan Type)
by Yue Shi, Yan Liu, Yunpeng Qi, Youjun Rong, Xiaofang Ao, Mingzhu Zhang, Qincheng Xia, Yanjun Zhang and Ruijun Wang
Animals 2025, 15(11), 1652; https://doi.org/10.3390/ani15111652 - 3 Jun 2025
Viewed by 352
Abstract
This study aimed to estimate the variance, heritability, and genetic correlation of growth traits in Inner Mongolia white cashmere goats (Erlangshan type) (IMWCG-ER). Data collected from the Erlang Mountain Ranch in 2022–2023 were analyzed. The traits studied included birth weight (BW), weaning weight [...] Read more.
This study aimed to estimate the variance, heritability, and genetic correlation of growth traits in Inner Mongolia white cashmere goats (Erlangshan type) (IMWCG-ER). Data collected from the Erlang Mountain Ranch in 2022–2023 were analyzed. The traits studied included birth weight (BW), weaning weight (WW), pre-weaning daily gain (ADG), and the 12-month weight (12W). In animal models, single and multi-trait analyses were performed using the restricted maximum likelihood (REML) method to estimate genetic parameters, and six different models were fitted for each trait by ignoring or including maternal permanent environmental effects, maternal additive genetic effects, and the interaction with individual additive genetic effects. The accuracy and suitability of each model were tested using the likelihood ratio and AIC and BIC tests. The heritability estimates of birth weight, weaning weight, daily gain before weaning, and the 12-month weight were 0.3884, 0.2951, 0.2749, and 0.2192, respectively. The absolute value of the genetic correlation coefficient between traits ranged from −0.8700 to 0.5529. The highest genetic association was between birth weight and pre-weaning daily gain (−0.8700), followed by birth weight and the 12-month weight (−0.6256). The absolute value of phenotypic correlation coefficients ranged from −0.7906 to 0.3562. The highest phenotypic correlation was between birth weight and daily gain before weaning, and the correlation coefficient was −0.7906. Full article
(This article belongs to the Section Animal Genetics and Genomics)
33 pages, 1914 KiB  
Review
Maternal Overnutrition in Beef Cattle: Effects on Fetal Programming, Metabolic Health, and Postnatal Outcomes
by Borhan Shokrollahi, Myungsun Park, Gi-Suk Jang, Shil Jin, Sung-Jin Moon, Kyung-Hwan Um, Sun-Sik Jang and Youl-Chang Baek
Biology 2025, 14(6), 645; https://doi.org/10.3390/biology14060645 - 2 Jun 2025
Cited by 1 | Viewed by 1033
Abstract
Maternal overnutrition and targeted supplements during pregnancy strongly affect fetal development in beef cattle, influencing gene expression, tissue development, and productivity after birth. As modern feeding practices often result in cows receiving energy and protein above requirements, understanding the balance between adequate nutrition [...] Read more.
Maternal overnutrition and targeted supplements during pregnancy strongly affect fetal development in beef cattle, influencing gene expression, tissue development, and productivity after birth. As modern feeding practices often result in cows receiving energy and protein above requirements, understanding the balance between adequate nutrition and overconditioning is critical for sustainable beef production. This review synthesizes findings from recent studies on maternal overnutrition and supplementation, focusing on macronutrients (energy, protein, methionine) and key micronutrients (e.g., selenium, zinc). It evaluates the timing and impact of supplementation during different gestational stages, with emphasis on fetal muscle and adipose tissue development, immune function, and metabolic programming. The role of epigenetic mechanisms, such as DNA methylation and non-coding RNAs, is also discussed in relation to maternal dietary inputs. Mid-gestation supplementation promotes muscle growth by activating muscle-specific genes, whereas late-gestation diets enhance marbling and carcass traits. However, maternal overnutrition may impair mitochondrial efficiency, encourage fat deposition over muscle, and promote collagen synthesis, reducing meat tenderness. Recent evidence highlights sex-specific fetal programming differences, the significant impact of maternal diets on offspring gut microbiomes, and breed-specific nutritional responses, and multi-OMICs integration reveals metabolic reprogramming mechanisms. Targeted trace mineral and methionine supplementation enhance antioxidant capacity, immune function, and reproductive performance. Precision feeding strategies aligned with gestational requirements improve feed efficiency and minimize overfeeding risks. Early interventions, including protein and vitamin supplementation, optimize placental function and fetal development, supporting stronger postnatal growth, immunity, and fertility. Balancing nutritional adequacy without excessive feeding supports animal welfare, profitability, and sustainability in beef cattle systems. Full article
(This article belongs to the Section Biochemistry and Molecular Biology)
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18 pages, 485 KiB  
Article
Locus of Control and Utilization of Skilled Birth Care in Nigeria: The Mediating Influence of Neuroticism
by Josephine Aikpitanyi and Marlène Guillon
Populations 2025, 1(2), 11; https://doi.org/10.3390/populations1020011 - 27 May 2025
Viewed by 481
Abstract
Despite ongoing efforts to reduce maternal mortality in Nigeria, the uptake of skilled birth attendance remains persistently low, especially in rural areas. While structural and socio–demographic barriers have been widely studied, less attention has been paid to psychological determinants of maternal healthcare-seeking behavior [...] Read more.
Despite ongoing efforts to reduce maternal mortality in Nigeria, the uptake of skilled birth attendance remains persistently low, especially in rural areas. While structural and socio–demographic barriers have been widely studied, less attention has been paid to psychological determinants of maternal healthcare-seeking behavior in low-resource settings. This study explores how the locus of control influences the use of skilled birth care among postpartum women in rural Edo State, Nigeria, and whether neuroticism serves as a mediating factor in this relationship. We draw on data from a cross-sectional survey involving 1411 women aged 15–45 who had given birth within the two years preceding the study. Participants were recruited from 20 randomly selected communities across two rural Local Government Areas. Data were collected using structured interviews that included validated measures of locus of control, neuroticism, and self-reported use of skilled birth care. We applied the Baron and Kenny mediation framework using linear and logistic regression models with standardized coefficients, adjusting for education, household wealth, and women’s decision-making autonomy. The findings show that women with a more external locus of control were significantly less likely to utilize skilled birth care (p < 0.01), and that neuroticism partially mediated this effect. Higher levels of neuroticism were associated with a reduced likelihood of engaging with skilled maternity care services. These results highlight the importance of psychological traits in shaping maternal health behaviors. Integrating psychosocial interventions, such as emotional support, cognitive reframing, and community health education, into maternal healthcare programs may improve service uptake in marginalized rural populations. Full article
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13 pages, 238 KiB  
Article
Genetic Evaluation of Early Growth Traits in Yunnan Semi-Fine Wool Sheep
by Yaqian Wang, Hongyuan Yang, Xiaoqi Zhao, Xiaojun Ni, Yuanchong Zhao, Zhengrong You, Qingwei Lu, Sen Tang, Guobo Quan and Xuefeng Fu
Animals 2025, 15(11), 1512; https://doi.org/10.3390/ani15111512 - 22 May 2025
Viewed by 517
Abstract
With economic development and improved living standards, the demand for mutton and wool continues to grow, and improving the production performance and genetic potential of sheep breeds has become the key to promoting the high-quality development of the sheep industry. Thus, this study [...] Read more.
With economic development and improved living standards, the demand for mutton and wool continues to grow, and improving the production performance and genetic potential of sheep breeds has become the key to promoting the high-quality development of the sheep industry. Thus, this study analyzes the influencing factors of the early production traits of Yunnan semi-fine wool sheep, optimizes the genetic evaluation model, and relies on accurate genetic parameter estimation to provide a theoretical basis for formulating a scientific and efficient breeding strategy for this breed. Data were collected from the Laishishan and Xiaohai breeding farms in Qiaojia, Yunnan, covering production records of the core flock from 2018 to 2022. Using the GLM procedure in SAS 9.4 software, this study analyzed the non-genetic influences on early production traits in Yunnan semi-fine wool sheep. Concurrently, Danish Milk Unit 5 (DMU 5) software estimated the variance components across various animal models for each trait. Employing the Akaike Information Criterion (AIC) and likelihood ratio test (LRT), six models were tested, incorporating or excluding maternal inheritance and environmental impacts, to identify the optimal model for deriving the genetic parameters. The results show that the birth year, dam age, sex, flock and litter size significantly affect both the Birth Weight (BWT) and Weaning Weight (WWT) (p < 0.01). Additionally, the birth month was found to exert a significant effect on Birth Weight (BWT) (p < 0.01), the weaning month has a significant effect on the Weaning Weight (WWT) (p < 0.05). No significant effects of farm location were observed on either trait (p > 0.05). The most accurate genetic evaluation model determined the heritability of the Birth Weight (BWT) and Weaning Weight (WWT) as 0.3123 and 0.3471. From a production perspective, improving lamb birth, Weaning Weight (WWT), feed composition, and maternal nutrition during gestation is vital for breeding efficiency. This study not only identified the optimal animal models for early growth traits in Yunnan semi-fine wool sheep, offering a precise basis for estimating genetic parameters but also provides theoretical guidance for genetic selection and breed improvement in this population. Full article
12 pages, 2533 KiB  
Article
Genome-Wide Analysis of Copy Number Variations in Three Populations of Nanyang Cattle Using Whole-Genome Resequencing
by Dong Dang, Lilian Zhang, Lutao Gao, Lin Peng, Yao Rao and Linnan Yang
Genes 2025, 16(5), 568; https://doi.org/10.3390/genes16050568 - 12 May 2025
Viewed by 596
Abstract
Copy number variation (CNV) serves as a crucial contributor to genetic diversity, exerting a profound influence on phenotypic diversity, traits of economic significance, and the evolutionary trajectory of livestock species. This study aimed to dissect the genome-wide CNV landscape of the Nanyang cattle [...] Read more.
Copy number variation (CNV) serves as a crucial contributor to genetic diversity, exerting a profound influence on phenotypic diversity, traits of economic significance, and the evolutionary trajectory of livestock species. This study aimed to dissect the genome-wide CNV landscape of the Nanyang cattle line (Nanyang, Pinnan, and Xianan cattle) to identify functionally relevant CNVs associated with key economic traits and breed differentiation. In this study, 27 resequencing datasets were utilized to analyze the genome-wide distribution of CNVs in three breeds of Nanyang cattle (Nanyang cattle, Pinnan cattle, and Xianan cattle) based on the latest reference genome ARS-UCD2.0. This study identified a total of 97,564 CNVs, and after merging CNVs with overlapping genomic positions, we obtained 10,349 CNV regions (CNVRs), accounting for 1.48% of the reference genome. Functional enrichment analysis showed that CNVR genes were mainly involved in organ development, neural regulation, immune regulation, and metabolism. In addition, 131 CNVRs overlapped with 81 quantitative trait loci (QTLs), such as growth and carcass QTL, multiple birth QTL, tenderness score QTL, and antal follicle number QTL. Additionally, AOX1, KRT72, and ZBTB7C were found to overlap with body weight QTLs. Furthermore, a selective sweep analysis of CNVR revealed that numerous genes (KIF26A, SPINT4, OR5W1, etc.) exhibited divergent copy numbers between breeds. Conclusively, this study facilitates comprehension of the genetic characteristics of the Nanyang cattle line at the CNV level and furnishes valuable information for the advancement of the Nanyang cattle line breeding system. Full article
(This article belongs to the Section Animal Genetics and Genomics)
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15 pages, 2684 KiB  
Article
Evaluating Pulmonary Arterial Pressure in Angus Yearling Bulls at High Elevation: Associations with Birth Traits and Growth Performance
by Kaylen Stearns, Hannah DelCurto-Wyffels, Sam Wyffels, Megan Van Emon, Noah G. Davis, Taylre Sitz and Tim DelCurto
Animals 2025, 15(9), 1302; https://doi.org/10.3390/ani15091302 - 30 Apr 2025
Viewed by 1151
Abstract
The objectives of this study were to model the relationship between pulmonary arterial pressure (PAP) estimates and birth weight, gestation length, and growth traits of developing bulls. Pulmonary arterial pressure estimates were collected from Angus yearling bulls ranging in age from 12 to [...] Read more.
The objectives of this study were to model the relationship between pulmonary arterial pressure (PAP) estimates and birth weight, gestation length, and growth traits of developing bulls. Pulmonary arterial pressure estimates were collected from Angus yearling bulls ranging in age from 12 to 18 months from a Montana-based Angus operation (>1600 m elevation, 5406 yearlings/18-month-old bulls from 2016–2023). Pulmonary arterial pressure was positively correlated with birth weight (p < 0.01) and gestation length (p < 0.01). No relationship was observed between bull PAP and weaning weight (p = 0.26). Pulmonary arterial pressure scores were negatively correlated with yearling weight (p = 0.04). Additionally, PAP estimates were negatively correlated with birth-to-weaning gains (p < 0.01) and weaning-to-yearling gains (p = 0.02). Lastly, PAP scores were negatively correlated with birth to yearling growth (p < 0.01). Sire lines influenced offspring PAP scores (p < 0.01), and dam−sire lines tended to have an effect on offspring PAP scores (p = 0.09). In summary, PAP scores were related to birth weight, gestation length, yearling weight, and growth from birth to yearling age. Our findings suggest that selection for higher growth should also emphasize selecting for lower PAP scores. Full article
(This article belongs to the Section Cattle)
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15 pages, 2812 KiB  
Article
Statistical Analysis of Reproductive Traits in Jinwu Pig and Identification of Genome-Wide Association Loci
by Wenduo Chen, Ayong Zhao, Jianzhi Pan, Kai Tan, Zhiwei Zhu, Liang Zhang, Fuxian Yu, Renhu Liu, Liepeng Zhong and Jing Huang
Genes 2025, 16(5), 550; https://doi.org/10.3390/genes16050550 - 30 Apr 2025
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Abstract
Background: The Jinwu pig is a novel breed created by crossbreeding Jinhua and Duroc pigs, displaying superior meat quality, strong adaptability to coarse feed, high production performance, and a rapid growth rate. However, research on its reproductive traits and genomic characteristics has not [...] Read more.
Background: The Jinwu pig is a novel breed created by crossbreeding Jinhua and Duroc pigs, displaying superior meat quality, strong adaptability to coarse feed, high production performance, and a rapid growth rate. However, research on its reproductive traits and genomic characteristics has not been systematically reported. Methods: In this study, we investigated the genetic basis of reproductive traits in Jinwu pigs us-ing a genome-wide association study. We analyzed 2831 breeding records from 516 Jinwu sows to evaluate the effects of fixed factors (farrowing season, parity, and mated boar) on six reproductive traits: the total number of births (TNB), number born alive (NBA), number of healthy offspring produced (NHOP), weak litter size (WLS), number of stillbirths (NS), and number of mummies (NM). Results: A total of 771 genome-wide significant single-nucleotide polymorphisms (SNPs) and ten potential candidate genes associated with pig reproductive traits were identified: VOPP1, PGAM2, TNS3, LRFN5, ORC1, CC2D1B, ZFYYE9, TUT4, DCN, and FEZF1. TT-genotype-carrier individuals of the pleiotropic SNP rs326174997 exhibited significantly higher TNB, NBA, and NHOP trait-related phenotypic values. Conclusions: These findings provide a foundation for the reproductive breeding of Jinwu pigs and offer new insights into molecular genetic breeding in pigs. Full article
(This article belongs to the Special Issue Advances in Pig Genetic and Genomic Breeding)
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