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Current Challenges and Targets for the Reproductive Management of Farm...
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Current Challenges and Targets for the Reproductive Management of Farm Animals: Second Edition

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

Deadline for manuscript submissions: 10 December 2024 | Viewed by 4101

Special Issue Editor

Prof. Dr. Víctor Hugo Parraguez Gamboa

E-Mail Website
Guest Editor
Laboratory of Animal Physiology, Department of Biological Sciences, Faculty of Veterinary Sciences, University of Chile, Santiago 8820000, Chile
Interests: effects of hypoxia and oxidative stress on reproduction and fetal and newborn growth and development
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Animal production in these early years of the 21st century is far from the scenario previously seen during the 20th century. In the 20th century, animal production, and agriculture more broadly, was influenced by the need to provide food and clothes to a growing population after periods of war in developed countries, geopolitical disasters, and substantial changes in demographics and lifestyle in developing areas. Strategies for providing food and clothes were developed at any cost and included the intensification of the use of natural resources to the fullest limits and the extensive use of chemical substances (biocides and hormones), which nowadays have been shown to act as xenobiotics. Although the needs of the global population will continue to grow, we have learned that natural resources are limited and that any action impacting the environment has long-lasting consequences. Hence, animal production and reproductive management within animal production require new alternatives to adapt to a changing environment, and efficiency and sustainability need to be improved to avoid further adverse impacts in such an environment. Moreover, in 2020, the sustainability of animal production was dramatically impacted by the COVID-19 pandemic, highlighting the need to increase efficiency and resilience in this field.

Thus, we are pleased to invite authors to contribute to the new Special Issue of Animals, entitled “Current Challenges and Targets for the Reproductive Management of Farm Animals: Second Edition”. We invite original research papers and reviews addressing current technical or ethical challenges and targets for the more efficient, sustainable, and resilient reproductive management of farm animals.

Prof. Dr. Víctor Hugo Parraguez Gamboa
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 submissions that pass pre-check are 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 semimonthly 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 2400 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

  • induction and synchronization of estrus and ovulation
  • seasonality of reproduction
  • assisted reproduction
  • OMICs
  • management of pregnancy and newborns

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Related Special Issue

Published Papers (3 papers)

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Research

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14 pages, 1669 KiB  
Article
Novel Approach for Evaluating Pregnancy-Associated Glycoprotein and Inflammation Markers during the Postpartum Period in Holstein Friesian Cows
by Topas Wicaksono Priyo, Jr., Ayane Edo, Yasuho Taura, Osamu Yamato, Tetsushi Ono, Masayasu Taniguchi, Oky Setyo Widodo, Md Shafiqul Islam, Shinichiro Maki and Mitsuhiro Takagi
Animals 2024, 14(10), 1459; https://doi.org/10.3390/ani14101459 - 14 May 2024
Viewed by 1140
Abstract
We evaluated the relationship between decreased pregnancy-associated glycoprotein (PAG) levels, inflammatory parameters (serum amyloid A [SAA] and milk amyloid A [MAA]), postpartum inflammatory conditions (mastitis, ketosis, and follicular cysts), and the FOXP3 gene. Nineteen Holstein-Friesian cows were included in this study. Up to [...] Read more.
We evaluated the relationship between decreased pregnancy-associated glycoprotein (PAG) levels, inflammatory parameters (serum amyloid A [SAA] and milk amyloid A [MAA]), postpartum inflammatory conditions (mastitis, ketosis, and follicular cysts), and the FOXP3 gene. Nineteen Holstein-Friesian cows were included in this study. Up to approximately eight weeks after delivery, weekly health examinations were performed for mastitis and ketosis, and reproductive organ ultrasonography was performed. The decreasing PAG rate was negatively correlated with SAA concentration (r = −0.493, p = 0.032). Cows with mastitis exhibited a slower trend of PAG decrease (p = 0.095), and a greater percentage of these cows had MAA concentrations above 12 µg/mL (p = 0.074) compared with those without mastitis. A negative correlation, although nonsignificant (r = −0.263, p = 0.385), was observed between the day-open period and decreased PAG rate. The day-open period was correlated with the presence or absence of follicular cysts (p = 0.046). Four cows that developed follicular cysts were homozygous for the G allele of the FOXP3 gene related to repeat breeders. These results indicate a relationship between a decreased PAG rate and inflammatory status during the postpartum period. Thus, suppressing inflammation during the perinatal period may improve reproductive efficiency in the dairy industry. Full article
(This article belongs to the Special Issue Current Challenges and Targets for the Reproductive Management of Farm Animals: Second Edition)
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10 pages, 280 KiB  
Article
Chronic Undernutrition in Ovine Twin Pregnancies Abolishes Differences in Birth Weight Due to Sex: An Evaluation of the Role of Nutritional and Antioxidant Supplementation
by Francisco Sales, Óscar A. Peralta, Mónica De los Reyes, Camila Sandoval, Paula Martínez-Ros, Carolina Rojas, Antonio Gonzáles-Bulnes and Víctor H. Parraguez
Animals 2024, 14(6), 974; https://doi.org/10.3390/ani14060974 - 21 Mar 2024
Cited by 1 | Viewed by 1155
Abstract
In twin pregnancies of discordant sex, the male fetus grows larger than the female co-twin. Our study aimed to determine the effect of the sex of co-twins on lambs’ birth weight in ovine pregnancies developed under natural undernourishment. Additionally, we investigated whether the [...] Read more.
In twin pregnancies of discordant sex, the male fetus grows larger than the female co-twin. Our study aimed to determine the effect of the sex of co-twins on lambs’ birth weight in ovine pregnancies developed under natural undernourishment. Additionally, we investigated whether the nutritional and/or antioxidant supplementation provided to ewes during pregnancy could modulate the potential effects associated with the sex of co-twins. Ninety-six birth records of twin pregnancies of sheep grazing the natural Patagonian prairies were analyzed. The animals were divided into four groups: control (no supplementation), N (concentrate supplementation, 100% NRC), A (antioxidant supplementation), and NA (concentrate + antioxidant supplementation). Supplementation occurred from day 35 of gestation onwards until lambing. There were no differences in female or male birth weight in the control undernourished group. However, in group N, females or males with sex-discordant co-twins had a higher birth weight than did those with co-twins of the same sex. Group A males with female co-twins had a higher birth weight compared to males whose co-twins were also males. In NA lambs, males had a higher birth weight compared to females, regardless of their co-twin’s sex. Therefore, chronic undernutrition abolished the differences in birth weight due to fetal sex. Restoring maternal nutrition or antioxidant supplementation tends to normalize birth weight and restore the differences between females and males. This effect is enhanced with the combined supplementation of concentrated food and antioxidants. Full article
(This article belongs to the Special Issue Current Challenges and Targets for the Reproductive Management of Farm Animals: Second Edition)

Review

Jump to: Research

23 pages, 1536 KiB  
Review
Updates and Current Challenges in Reproductive Microbiome: A Comparative Analysis between Cows and Women
by Amanda Fonseca Zangirolamo, Anne Kemmer Souza, Deborah Nakayama Yokomizo, Ana Karolyne Alves Miguel, Márcio Carvalho da Costa, Amauri Alcindo Alfieri and Marcelo Marcondes Seneda
Animals 2024, 14(13), 1971; https://doi.org/10.3390/ani14131971 - 3 Jul 2024
Cited by 1 | Viewed by 1287
Abstract
The microbiota plays an important role in numerous physiological processes, pathogenesis, development, and metabolism in different animal species. In humans, several studies have demonstrated an association between the vaginal microbiota and fertility rates, and even success in assisted reproduction techniques. In the context [...] Read more.
The microbiota plays an important role in numerous physiological processes, pathogenesis, development, and metabolism in different animal species. In humans, several studies have demonstrated an association between the vaginal microbiota and fertility rates, and even success in assisted reproduction techniques. In the context of cattle reproduction, although few studies have addressed the microbiota in a healthy state (which is not associated with diseases that affect the reproductive tract of cows), changes in its composition also seem to influence fertility. This review aims to explain the importance of the reproductive microbiota in female bovines and what is available in the literature regarding its possible role in increasing fertility. What are the challenges involved in this process? Future perspectives on its use and manipulation as a selection or intervention tool. Will it be possible to one day extrapolate the findings to reality and apply them in the field? In short, understanding the role of the reproductive microbiota of female bovines can signal the prospect of increasing production, whether of milk or meat, from the same number of animals, as it can optimize reproductive efficiency and perhaps become an allied tool for the economic profitability and sustainability of livestock farming. Full article
(This article belongs to the Special Issue Current Challenges and Targets for the Reproductive Management of Farm Animals: Second Edition)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

1. Tentative paper title: Fertility and reproductive microbiome in cows: Updates and current challenges
Submitting author: Prof. Marcelo M Seneda

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