Special Issue "Reproduction in Dairy Cattle"

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

Deadline for manuscript submissions: 30 April 2021.

Special Issue Editor

Dr. Emma Bleach
Website
Guest Editor
Harper Adams University, Shropshire, United Kingdom
Interests: Dairy cow; follicle; oestrus; calf; growth; health; endocrine; ultrasound

Special Issue Information

Dear Colleagues

Reproduction is fundamental to efficient dairy production. Poor reproductive performance is a cost, and, despite much research activity in this area, overcoming this remains one of the key challenges faced by dairy producers today. There are many factors that influence the reproductive process in dairy cows. Among these are nutrition, level of milk production, housing and heat stress, and cow health and well-being. Dairy cows are usually bred by artificial insemination (AI). Recent developments in the processing and dosage of semen for sex selection have the potential to improve the efficiency of reproduction. The timing and accuracy of insemination may be enhanced through automated detection of oestrus expression or by regulation of ovarian cycles using exogenous hormone treatments. Following insemination, the establishment and maintenance of pregnancy are critical factors in reproductive success. This Special Issue will publish original research papers and reviews that investigate means of enhancing the reproductive efficiency of dairy cows.

We invite you to share your research relating to this multifaceted topic in this Special Issue.

Dr. Emma Bleach
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • reproduction
  • dairy production
  • poor reproductive performance
  • dairy cows
  • milk production
  • housing
  • heat stress
  • cow health
  • artificial insemination (AI)
  • insemination
  • ovarian cycles
  • exogenous hormone treatments

Published Papers (1 paper)

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Research

Open AccessArticle
Insights into the Mechanism of Bovine Spermiogenesis Based on Comparative Transcriptomic Studies
Animals 2021, 11(1), 80; https://doi.org/10.3390/ani11010080 - 05 Jan 2021
Abstract
To reduce subfertility caused by low semen quality and provide theoretical guidance for the eradication of human male infertility, we sequenced the bovine transcriptomes of round, elongated spermatids and epididymal sperms. The differential analysis was carried out with the reference of the mouse [...] Read more.
To reduce subfertility caused by low semen quality and provide theoretical guidance for the eradication of human male infertility, we sequenced the bovine transcriptomes of round, elongated spermatids and epididymal sperms. The differential analysis was carried out with the reference of the mouse transcriptome, and the homology trends of gene expression to the mouse were also analysed. First, to explore the physiological mechanism of spermiogenesis that profoundly affects semen quality, homological trends of differential genes were compared during spermiogenesis in dairy cattle and mice. Next, Gene Ontology (GO), Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway enrichment, protein–protein interaction network (PPI network), and bioinformatics analyses were performed to uncover the regulation network of acrosome formation during the transition from round to elongated spermatids. In addition, processes that regulate gene expression during spermiogenesis from elongated spermatid to epididymal sperm, such as ubiquitination, acetylation, deacetylation, and glycosylation, and the functional ART3 gene may play important roles during spermiogenesis. Therefore, its localisation in the seminiferous tubules and epididymal sperm were investigated using immunofluorescent analysis, and its structure and function were also predicted. Our findings provide a deeper understanding of the process of spermiogenesis, which involves acrosome formation, histone replacement, and the fine regulation of gene expression. Full article
(This article belongs to the Special Issue Reproduction in Dairy Cattle)
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