Developmental programming of reproduction in sheep and goat: Association of fraternity size and sex ratio with reproductive performance of ewes and does at the first pregnancy DOI
Emadeddin Mobedi, Mehdi Vojgani,

Faramarz Gharagozlou

et al.

Animal Reproduction Science, Journal Year: 2024, Volume and Issue: 271, P. 107622 - 107622

Published: Oct. 25, 2024

Language: Английский

Advances in our understanding of the estrous cycle and applications for improving targeted reproductive management in livestock DOI
Robert A. Cushman,

Shelby L Rosasco,

Kacie L McCarthy

et al.

Domestic Animal Endocrinology, Journal Year: 2025, Volume and Issue: 91, P. 106912 - 106912

Published: Jan. 8, 2025

Language: Английский

Citations

0

Gebe ineklerde fetal programlama ve epigenetik değişimler: Beslenme ve ısı stresinin etkisi DOI Open Access
Nazlı Senem Cam, Mehmet Rıfat Vural

Veteriner Hekimler Derneği Dergisi, Journal Year: 2025, Volume and Issue: 96(1), P. 76 - 87

Published: Jan. 13, 2025

Yetişkin bir hayvanın yaşamsal işlevleri, doğum sonrasında maruz kaldığı çevresel etkilerle şekillenirken, son yıllarda yapılan araştırmalar, doğumdan önceki dönemin de gelecekteki performansını belirleyebileceğini göstermektedir. Fetal programlama, gelişimsel programlama ya da sağlık ve hastalığın kökenleri olarak çeşitli şekillerde adlandırılan bu kavram, öncesi dönemdeki faktörlerin bireyin sonrası büyüme, fizyolojik işlevleri üzerinde uzun vadeli etkiler yaratabileceğini ortaya koymaktadır. Bu önemli konsept, yavrunun özelliklerini şekillendiren ölçülebilir genetik yapıları farklı programlayabilme yeteneğine vurgu yapar. Özellikle gebe ineklerde yavru ağırlığına odaklanan ilk fetal çalışmaları, daha sonra annenin yaşadığı besin eksikliği, ısı stresi gibi etkilerin fetüs sonuçlar göstermiştir. Doğum faktörlerin, yaşamının geri kalanında süt üretimi, karkas verimi, yemden yararlanma verimliliği ve/veya üreme işlevi hayati özellikler olumsuz doğurabileceği anlaşılmaktadır. Epigenetik değişimler ise, DNA diziliminde değişiklik olmaksızın gen ekspresyonunda meydana gelen kalıcı değişikliklerdir. Anne inekteki beslenme stresi, metilasyonu histon modifikasyonları epigenetik mekanizmalar üzerinden fetusun ekspresyon profillerini değiştirebilir. değişimler, buzağıların dönemde verimliliklerini etkileyen fenotipik oluşturabilir. nedenle, doğru yönetimi ihtiyaç duyduğu uygun koşulların sağlanması, hem hayvan refahı sektörel verimlilik açısından kritik öneme sahiptir. derleme, ineklerdeki süreçlerini mekanizmaları programlamanın doğurduğu etkileri ele almaktadır.

Citations

0

Beef cows with larger vulvar width have greater antral follicle count, viable oocytes, and higher circulating AMH DOI Creative Commons
R. Maculan, G. Vasconcelos, Jesús Alfonso Sánchez Viafara

et al.

Animal Reproduction, Journal Year: 2025, Volume and Issue: 22(1)

Published: Jan. 1, 2025

Abstract Owing to the low heritability of reproductive traits, search for markers and their interrelationship that could indicate reproductively superior individuals is important in selection process bovine efficiency. This study aimed investigate possible interrelationships between antral follicle count (AFC), vulvar-width (VW), anti-Müllerian hormone (AMH) concentrations, fertility Bos Taurus Indicus females. Brahman (Bos Taurus-Indicus, n = 126) Simmental Angus Taurus-Taurus, 155) cows were classified as having large (≥86 mm) small (<86 VW. From each group, one blood sample per animal was collected determine AMH serum concentrations. The GLIMMIX procedure SAS® used whether vulva width (VW) classes, associated or not with breed, influence age at first calving (FCA), service interval (CFSI), (CI), number services pregnancy (SP), viable oocytes (VO). Antral (AFC) (36.10 ± 1.90 vs. 22.78 1.64, VW, respectively), (1.17 0.07 0.48 0.007 ng/mL), VO (18.86 1.76 10.15 1.49) greater (P < 0.05) VW than had AFC (36.30 1.34 22.09 1.67), (106.94 15.83 69.78 14.11 mm), (1.18 0.42 0.05 ng/mL) compared taurine cows. In conclusion, an efficient predictor concentrations both genetic groups, but under conditions this trial no link be detected these variables indices studied.

Language: Английский

Citations

0

Association of phenotypic traits and fertility in Holstein heifers: Body condition score, body weight, antral follicle count, Anti-Müllerian hormone, and anogenital distance DOI Creative Commons
Antônio Fernando Araújo Machado, Leticia P. Sanglard,

Sandra Hurtado

et al.

Journal of Dairy Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

The aim of this cross-sectional observational study was to assess whether nulliparous Holstein heifer fertility is associated with (1) energy reserve-related traits, such as body condition score (BCS) and weight (BW); (2) ovarian Anti-Müllerian hormone (AMH) antral follicle count (AFC); (3) development-related anogenital distance (AGD) vulval length (VUL). From August 2022 through July 2023, we used a prospective approach in which the phenotypic traits (BCS, AMH, AFC, AGD, BW, VUL) 698 heifers were measured once at approximately 12 mo age (at beginning breeding program). All submitted herd reproductive management from 367 ± 3 d 297 kg BW until 570 age, or 5 breedings. Fertility outcomes (age first service, pregnancy per AI (P/AI) conception, number services conception) retrieved software records. Pearson correlations performed among collected. strongest (r >0.5) observed for AGD VUL AMH AFC. Associations determined using generalized linear models. Body trait most outcomes. not very weak. Further, divided data into BCS tertiles association analyses by category. top tertile greater (365.7 1.8 vs 356.0 1.5 kg), P/AI service (65.0 4.0 52.0 4.0%), fewer conception (1.5 0.10 0.09) compared bottom tertile. Moreover, middle Finally, time based on Cox proportional hazards survival analysis, indicating that became pregnant earlier. Based results current study, would expect benefits improving practices result but (AMH, AFC) developmental (AGD, our study.

Language: Английский

Citations

0

Maternal nutrition and fetal imprinting of the male progeny DOI

Zahrasadat Ghasemi,

AliReza Alizadeh Mogadam Masouleh,

Leila Rashki Ghaleno

et al.

Animal Reproduction Science, Journal Year: 2024, Volume and Issue: 265, P. 107470 - 107470

Published: April 4, 2024

Language: Английский

Citations

3

International Symposium on Ruminant Physiology: One-carbon metabolism in beef cattle throughout the production cycle DOI Creative Commons
Matthew S Crouse, Robert A. Cushman, Colby A Redifer

et al.

Journal of Dairy Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

One-carbon metabolism (OCM) is a series of connected pathways involving the methionine-folate cycles, transsulfuration, polyamine synthesis, nucleotide free-radical scavenging, and energy metabolism. These functionally depend upon amino acids (methionine, glycine, serine), vitamins (folate, B

Language: Английский

Citations

3

Developmental programming of production and reproduction in dairy cows: V. Association of the main and interactive effects of maternal level of milk production and milk fat to protein ratio with offspring’s birth weight, survival, and productive and reproductive performance from birth to the first lactation period DOI
Emadeddin Mobedi,

Hamid Reza Dehghan Harati,

Iman Allahyari

et al.

Theriogenology, Journal Year: 2024, Volume and Issue: 228, P. 17 - 29

Published: July 24, 2024

Language: Английский

Citations

1

Developmental programming of reproduction and production in the offspring DOI
Vahid Akbarinejad, Robert A. Cushman

Animal Reproduction Science, Journal Year: 2024, Volume and Issue: 267, P. 107520 - 107520

Published: May 31, 2024

Language: Английский

Citations

0

Developmental programming of reproduction in sheep and goat: Association of fraternity size and sex ratio with reproductive performance of ewes and does at the first pregnancy DOI
Emadeddin Mobedi, Mehdi Vojgani,

Faramarz Gharagozlou

et al.

Animal Reproduction Science, Journal Year: 2024, Volume and Issue: 271, P. 107622 - 107622

Published: Oct. 25, 2024

Language: Английский

Citations

0