Advances in Livestock Breeding, Nutrition and Metabolism

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Animal Science".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1276

Special Issue Editor

National Institute of Animal Sciences RDA (Rural Development Administration), Wanju-gun 55365, Jeonbuk-do, Republic of Korea
Interests: embryo culture; embryo cryopreservation; assisted reproductive technology; reproduction biology; ovary; cryopreservation; semen analysis; semen evaluation; in vitro embryo production; reproductive biology; cloning of pig embryos; SCNT and xenotransplantation

Special Issue Information

Dear Colleagues,

The most recent innovations in livestock breeding, nutrition, and metabolism represent the main topics of this Special Issue, which will highlight significant advancements that enhance animal productivity, health, and sustainability in agricultural systems. The production of animals with improved features, such as disease resistance, higher reproductive performance, and improved environmental adaptability, has been made possible in livestock breeding through genetic innovations such as genome editing and genetic selection. These developments are essential in improving animal production efficiency and tackling the issue of global food security.

Optimal feed formulations that enhance feed conversion, growth rates, and general animal health have been developed through studies in animal nutrition. Animal production is increased, and waste and environmental impacts are reduced, using strategies including precision feeding and the addition of nutritional additives (such as probiotics, enzymes, and amino acids) to guarantee that animals receive the correct balance of nutrients. Additionally, by encouraging improvements to their immune system and digestion, nutritional management is essential in improving animals’ wellbeing.

Learning more about livestock metabolism has helped us better understand how animals manage metabolic illnesses, assimilate nutrients, and control energy. In order to improve animal development, reproductive effectiveness, and metabolic problems and, ultimately, produce healthier and more productive livestock, this research is essential. These developments in metabolism, nutrition, and breeding work together to improve animal welfare, meet the rising demand for animal-based food items, and ensure the sustainability of livestock production systems around the world.

Dr. Imran Khan
Guest Editor

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Keywords

  • genetic selection
  • livestock breeding
  • genome editing
  • animal nutrition
  • precision feeding
  • nutritional additives
  • feed conversion
  • metabolism
  • animal health
  • sustainability

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Published Papers (1 paper)

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Research

12 pages, 270 KB  
Article
Allometric Coefficients for Body Measurements and Morphometric Indices in Young Huacaya Alpacas from the Peruvian Highlands
by Ali William Canaza-Cayo, Roxana Churata-Huacani, Francisco Halley Rodriguez-Huanca, Diana Carla Fernandes Oliveira, Carola Trinidad Melo-Rojas, Rilke Tadeu Fonseca de Freitas, Luis Roque-Almanza, Maria Celeste Huanca-Ilaquijo, Edwin Amadeus Dueñas-Chaiña, Miguel del Carmen Rodriguez-Huanca and Júlio Sílvio de Sousa Bueno Filho
Life 2025, 15(10), 1529; https://doi.org/10.3390/life15101529 - 28 Sep 2025
Viewed by 431
Abstract
(1) Background: Alpacas play a crucial role in the livelihood and cultural heritage of Andean communities, yet limited scientific information exists regarding their morphometric growth patterns under high-altitude conditions. Understanding how environmental and biological factors influence their body development is essential for optimizing [...] Read more.
(1) Background: Alpacas play a crucial role in the livelihood and cultural heritage of Andean communities, yet limited scientific information exists regarding their morphometric growth patterns under high-altitude conditions. Understanding how environmental and biological factors influence their body development is essential for optimizing management and genetic improvement programs. (2) Methods: This study aimed to characterize the morphometric profile and allometric growth patterns of young Huacaya alpacas, evaluating the influence of sex, birth month, and fiber color on 18 linear body measurements and 6 morphometric indices from 146 animals. (3) Results: General linear models revealed that birth month had a significant effect (p < 0.05) on the compactness index, body side index, and body index while sex, fiber color, and their interaction did not significantly affect most indices. Allometric analysis showed that head traits exhibited low allometric coefficients (0.08–0.23), whereas torso-related measures such as dorsal length and abdominal perimeter showed higher coefficients (0.33 and 0.36, respectively). The compactness index showed marked sexual dimorphism in the allometric coefficient (0.83 in females, 0.95 in males). Thoracic perimeter exhibited a strong relationship with body weight and low variability, highlighting this measure as a key predictor of body size. (4) Morphometric and allometric analyses provide the first growth coefficients for young Huacaya alpacas at high altitude, offering a scientific basis for phenotypic selection of animals with superior meat potential and adaptability, thereby directly improving breeding efficiency and management in Andean production systems. Full article
(This article belongs to the Special Issue Advances in Livestock Breeding, Nutrition and Metabolism)
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