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Ruminants
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Reproductive Management of Ruminants
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Reproductive Management of Ruminants

A special issue of Ruminants (ISSN 2673-933X).

Deadline for manuscript submissions: 30 April 2025 | Viewed by 3666

Special Issue Editors

Dr. Vittoria Lucia Barile

E-Mail Website
Guest Editor
Council for Agricultural Research and Agricultural Economy Analysis, CREA—Research Centre for Animal Production and Aquaculture, 00015 Rome, Italy
Interests: animal reproduction; oestrus synchronization; artificial insemination; seasonality; anoestrus; pregnancy; livestock production systems; cattle; buffalo
Special Issues, Collections and Topics in MDPI journals
Dr. Olimpia Barbato

E-Mail Website
Guest Editor
Department of Veterinary Science, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
Interests: endocrinology; pregnancy; placenta; PAG; Immuno-assays; cattle; buffalos; bisons
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Reproduction in farm animals is very important for the economic livelihood of farmers. Ruminants play an important role in the agricultural sector, producing a high quantity and quality of protein (milk and meat) in human diets as well as providing hides, wool, and manure, contributing to rural livelihoods in many counties. Reproduction is the one of the crucial components that hampers productivity and can be influenced by several factors, i.e., genetic, environmental, nutritional, metabolic, hormonal, immunological, that could lead to reproductive failures. In recent decades, techniques have been developed to improve the management and control of reproduction in ruminants, but research is still needed to increase our understanding of the physiological events that occur in reproduction, which could help in improving farm reproductive management.

The aim of this Special Issue is to bring together original research papers and reviews on basic and applied aspects of ruminant reproduction, both in males and females, possibly using new and multidisciplinary approaches.

We look forward to receiving your contributions.

You may choose our Joint Special Issue in Animals.

Dr. Vittoria Lucia Barile
Dr. Olimpia Barbato
Guest Editors

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. Ruminants is an international peer-reviewed open access quarterly 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 1000 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

  • ruminants
  • animal breeding
  • biology of reproduction
  • endocrinology
  • biotechnologies
  • assisted reproductive technologies
  • molecular biology
  • gene expression

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Published Papers (2 papers)

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Research

12 pages, 594 KiB  
Article
Effect of Short-Term Glycerin Supplementation on Follicle Dynamics and Pregnancy Rate in Goats
by Caroline Pessoa da Silva, César Carneiro Linhares Fernandes, Juliana Paula Martins Alves, Felipe Brener Bezerra de Oliveira, Aline Maia Silva, Francisco Carlos de Souza, Camila Muniz Cavalcante, Alfredo José Ferreira Conde, Anibal Coutinho do Rego and Davide Rondina
Ruminants 2023, 3(4), 445-456; https://doi.org/10.3390/ruminants3040036 - 4 Dec 2023
Viewed by 1333
Abstract
We investigated the effects of short-term glycerin supplementation on follicular dynamics and pregnancy rates. Twenty-five goats with synchronized estrus and follicular waves with three injections of a prostaglandin analog every 7 days were used. Two days after the second injection, 13 goats were [...] Read more.
We investigated the effects of short-term glycerin supplementation on follicular dynamics and pregnancy rates. Twenty-five goats with synchronized estrus and follicular waves with three injections of a prostaglandin analog every 7 days were used. Two days after the second injection, 13 goats were randomly chosen to receive an oral drench of 200 mL of glycerin (glycerin group [GG], n = 13) for 6 days, whereas the remaining 12 animals received an oral drench of saline (control group [CG], n = 12). At 24 and 48 h after the third injection, the goats mated. The animals were kept in a collective stall and received the same diet. The GG had higher blood glucose levels during the supplementation period than the CG (76.4 ± 1.9 vs. 50.3 ± 0.7 mg/dL; p < 0.01). The glycemic peak was recorded 4 h after the glycerin administration (102.3 ± 5.1 mg/dL) and remained higher than that in the CG 8 and 12 h later. The GG goats had a higher rectal temperature, heart rate, and respiratory rate than the CG goats and showed an increase in these parameters 4, 8, and 12 h after glycerin drenching. The GG animals also exhibited increased stress, urination, and drinking behaviors and reduced rumination. The ultrasonographic analysis showed a higher number of follicles with a diameter >4 mm (p < 0.05) and a greater follicular diameter (p < 0.01) in the waves before and after ovulation induction. The pregnancy and twinning rates and litter size at parturition were not different between the groups. Short-term supplementation with glycerin positively affects ovarian stimulation but has no effect on the reproductive response after mating. Full article
(This article belongs to the Special Issue Reproductive Management of Ruminants)
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9 pages, 1704 KiB  
Article
Annual Sexual Behavior in Boer Bucks Located in the Guerrero Tropics in Mexico
by José Luis Ponce-Covarrubias, Ethel Caterina García y González, Blanca Celia Pineda-Burgos, Aurora Matilde Guevara-Arroyo, Pedro Enrique Hernández-Ruiz, Fernando Torres-Agatón, Maricela Ruiz-Ortega, Marisol Paredes-Alvarado, José Manuel Robles-Robles, José del Carmen Rodríguez-Castillo, Oscar Ángel-García and Edgar Valencia-Franco
Ruminants 2023, 3(2), 149-157; https://doi.org/10.3390/ruminants3020014 - 13 Jun 2023
Cited by 1 | Viewed by 1511
Abstract
The aim of this study was to evaluate the intensity of the annual sexual behavior (SB) of Boer bucks under tropical conditions in southern Mexico. For one year, 16 extensively grazing males were evaluated for SB individually with estrogenized goats. From the beginning [...] Read more.
The aim of this study was to evaluate the intensity of the annual sexual behavior (SB) of Boer bucks under tropical conditions in southern Mexico. For one year, 16 extensively grazing males were evaluated for SB individually with estrogenized goats. From the beginning of the experiment and every 30 days, body weight (BW), body condition (BC), testicular circumference (TC), odor intensity (OI), and SB (nudging, ano-genital sniffing, flehmen, mounting attempts, mounts with intromission, and self-urination) were recorded. The bucks showed more intense SB during the months of November to May than during the months of June to October (p < 0.05). Greater frequencies were found for nudging, ano-genital sniffing, mounting attempts, and self-urination in the months of November to May (p < 0.001). BW was lower during the months of January to August than in the months of September to December (p < 0.05). On the other hand, TC increased from October to December (p < 0.05). Similarly, the OI in males varied over time (time effect; p < 0.001). In fact, an increased odor was found from October to December. The conclusions are that breed male goats from the tropics of Guerrero have a more intense SB during the months of November to May, but TC, OI, BW, and BC correspond to the time of the year when forage availability is the greatest. Full article
(This article belongs to the Special Issue Reproductive Management of Ruminants)
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