Advances in Dairy Cattle Reproduction: Second Edition

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Reproduction".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1968

Special Issue Editor


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Guest Editor
1. Agrotecnio Centre, 25198 Lleida, Spain
2. Transfer in Bovine Reproduction SLu, 22300 Barbastro, Spain
Interests: dairy cattle reproduction; anestrus; synchronization and induction of ovulation; the quality of the pre-ovulatory follicle and the post-ovulatory corpus luteum; the problem of twin gestations and the maintenance of pregnancy
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Special Issue Information

Dear Colleagues,

Following the submission deadline of October 31, 2023 for the Special Issue “Advances in Dairy Cattle Reproduction”, the 40,000 views and more than 80 citations of the 14 contributing articles suggest that it has been well received by both the scientific community and the dairy industry. This interest has motivated us to look closely at which topics can be improved or expanded upon for a second edition the SI. Feelings from clinical meetings indicate the need for continued efforts in many areas to ensure an effective management of the herd, i.e., controlling the complexity of knowledge transfer to operational practises in a herd. In effect, the growing complexity is becoming routine for clinicians. Aspects of management throughout the animal's life, genomic predictions, the utility of in vitro embryo production, and the reproductive clinic should be the profile and purpose for this new edition.

Dr. Fernando Lopez-Gatius
Guest Editor

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Keywords

  • abortion
  • cow lifespan
  • genomic predictions
  • in vitro embryo production
  • reproductive clinics

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Related Special Issue

Published Papers (2 papers)

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Research

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11 pages, 1021 KiB  
Article
Melatonin Treatment at Dry-off Reduces Postpartum Shedding of Coccidia in Primiparous Dairy Cows and Their Calves
by Fernando López-Gatius, Sergi Ganau, María Mora-García and Irina Garcia-Ispierto
Animals 2024, 14(23), 3534; https://doi.org/10.3390/ani14233534 - 6 Dec 2024
Viewed by 870
Abstract
Coccidiosis is a protozoan disease that causes diarrhea in cattle. This study examines the impact of treating pregnant cows at dry-off with melatonin on postpartum coccidia excretion in dams and their calves. The study population comprised 106 primiparous lactating dairy cows: 53 controls [...] Read more.
Coccidiosis is a protozoan disease that causes diarrhea in cattle. This study examines the impact of treating pregnant cows at dry-off with melatonin on postpartum coccidia excretion in dams and their calves. The study population comprised 106 primiparous lactating dairy cows: 53 controls and 53 receiving melatonin on days 220–226 of gestation, plus 99 calves: 52 born from control and 47 from treated dams. Feces samples were collected from each dam on gestation days 220–226 and on days 10–16 and 30–36 postpartum; and from each calf on days 10–16 and 30–36 of age. Postpartum rates of high excretion of oocysts per gram (OPG) (feces counts > 5000) were significantly lower (p < 0.01) in treated than control dams. Low excretion rates of OPG (<2000) were significantly higher (p < 0.01) in the melatonin treatment than control groups in dams on days 30–36 of lactation and in calves at 10–16 and 30–36 days of life. In conclusion, melatonin treatment in lactating cows at dry-off reduced coccidia shedding in dams and their calves during the early postpartum period. Full article
(This article belongs to the Special Issue Advances in Dairy Cattle Reproduction: Second Edition)
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Review

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22 pages, 1511 KiB  
Review
Advances in Timed Artificial Insemination: Integrating Omics Technologies for Enhanced Reproductive Efficiency in Dairy Cattle
by Jesse Oluwaseun Ayantoye, Hubdar Ali Kolachi, Xiaomeng Zhang, Muhammad Shahzad, Omaima Mohamed Tawfik Kandil, Pengcheng Wan and Xueming Zhao
Animals 2025, 15(6), 816; https://doi.org/10.3390/ani15060816 - 13 Mar 2025
Viewed by 783
Abstract
Reproductive efficiency is crucial for dairy farm productivity, but achieving consistent fertility remains challenging. TAI improves pregnancy rates by synchronizing ovulation and enabling precision breeding. Despite the advancements in hormone synchronization protocols, outcomes vary due to genetic, physiological, and metabolic differences among cows. [...] Read more.
Reproductive efficiency is crucial for dairy farm productivity, but achieving consistent fertility remains challenging. TAI improves pregnancy rates by synchronizing ovulation and enabling precision breeding. Despite the advancements in hormone synchronization protocols, outcomes vary due to genetic, physiological, and metabolic differences among cows. This review examines current TAI protocols, including gonadotropin-releasing hormone (GnRH)-based and estradiol/progesterone (P4)-based synchronization methods, emphasizing their effectiveness and practical limitations. We also examined how to integrate emerging omics technologies, such as genomics, transcriptomics, proteomics, and metabolomics, into TAI protocols, marking a significant shift in reproductive management. These tools unveil molecular biomarkers that enable the precise tailoring of TAI protocols to the genetic, metabolic, and physiological profiles of individual animals, addressing challenges in variable fertility responses. Key factors influencing TAI success, such as animal health, environment, and insemination timing, are explored. This review identifies gaps in the existing literature, such as the integrated omics methodologies and data integration across platforms, and proposes a framework for future research to refine TAI protocols to address genetic variability and apply omics technologies to identify validated biomarkers for early pregnancy detection, which will significantly enhance the practical impact of TAI. Future directions highlight the need for interdisciplinary approaches combining molecular insights with robust on-farm applications to improve fertility outcomes and reduce reliance on blanket synchronization methods. By combining traditional synchronization methods with cutting-edge molecular tools, TAI offers promising opportunities for improving reproductive efficiency and sustainability in dairy farming. Full article
(This article belongs to the Special Issue Advances in Dairy Cattle Reproduction: Second Edition)
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