Articles | Volume 64, issue 1
https://doi.org/10.5194/aab-64-223-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/aab-64-223-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
An investigation of the effects of BMPR1B, BMP15, and GDF9 genes on litter size in Ramlıç and Dağlıç sheep
Koray Çelikeloğlu
CORRESPONDING AUTHOR
Department of Animal Science, Faculty of Veterinary Medicine, Afyonkarahisar, Turkey
Mustafa Tekerli
Department of Animal Science, Faculty of Veterinary Medicine, Afyonkarahisar, Turkey
Metin Erdoğan
Department of Veterinary Biology and Genetics, Faculty of Veterinary Medicine, Afyonkarahisar, Turkey
Serdar Koçak
Department of Animal Science, Faculty of Veterinary Medicine, Afyonkarahisar, Turkey
Özlem Hacan
Department of Animal Science, Faculty of Veterinary Medicine, Afyonkarahisar, Turkey
Zehra Bozkurt
Department of Animal Science, Faculty of Veterinary Medicine, Afyonkarahisar, Turkey
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Serdar Koçak, Zehra Bozkurt, Özlem Gücüyener Hacan, Koray Çelikeloğlu, Mustafa Tekerli, Mustafa Demirtaş, Samet Çinkaya, and Metin Erdoğan
Arch. Anim. Breed., 68, 459–472, https://doi.org/10.5194/aab-68-459-2025, https://doi.org/10.5194/aab-68-459-2025, 2025
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This study was conducted to identify key welfare risks using the AWIN (Animal Welfare Indicators) protocol for extensively managed sheep farms. Each farm was visited once. A total of 702 sheep were individually assessed on the farms as part of the second-level welfare criteria. The main animal welfare risks identified were housing facilities, the provision of adequate and balanced diets to the animals, and the implementation of appropriate animal health plans in accordance with the breed requirements.
Serdar Koçak, Mustafa Tekerli, Metin Erdoğan, Koray Çelikeloğlu, Ebubekir Yazıcı, Zehra Bozkurt, Özlem Hacan, Mustafa Demirtaş, and Samet Çinkaya
Arch. Anim. Breed., 67, 207–216, https://doi.org/10.5194/aab-67-207-2024, https://doi.org/10.5194/aab-67-207-2024, 2024
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It was detected that Texel and myostatin-carrying BC1 lambs were significantly higher than Pırlak and non-carrying BC1 lambs in the MLD area at weaning. Myostatin-carrying BC1 lambs had a superiority to Pırlak lambs in terms of muscle conformation and fatness of the hind leg. Myostatin-carrying BC1 lambs were found to be better than Pırlak in growth performance. It was concluded that the Pırlak lambs may be improved by introgression of myostatin mutation.
Mustafa Tekerli, Metin Erdoğan, Serdar Koçak, Koray Çelikeloğlu, Ebubekir Yazıcı, Özlem Hacan, Zehra Bozkurt, Mustafa Demirtaş, and Samet Çinkaya
Arch. Anim. Breed., 65, 231–238, https://doi.org/10.5194/aab-65-231-2022, https://doi.org/10.5194/aab-65-231-2022, 2022
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Factors such as genotype, sex, type of birth, maternal age, weaning age and birth weight must be considered in evaluation of pre- and post-weaning growth traits. Myostatin mutation was introduced to native Turkish breed Ramlıç by marker-assisted introgression (MAI). The mutation has a positive effect on ultrasonographic carcass traits in crosses. Lambs with myostatin tended to have deeper longissimus muscle and good carcass characteristics, and they may be recommendable for Turkish farmers.
Serdar Koçak, Zehra Bozkurt, Özlem Gücüyener Hacan, Koray Çelikeloğlu, Mustafa Tekerli, Mustafa Demirtaş, Samet Çinkaya, and Metin Erdoğan
Arch. Anim. Breed., 68, 459–472, https://doi.org/10.5194/aab-68-459-2025, https://doi.org/10.5194/aab-68-459-2025, 2025
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This study was conducted to identify key welfare risks using the AWIN (Animal Welfare Indicators) protocol for extensively managed sheep farms. Each farm was visited once. A total of 702 sheep were individually assessed on the farms as part of the second-level welfare criteria. The main animal welfare risks identified were housing facilities, the provision of adequate and balanced diets to the animals, and the implementation of appropriate animal health plans in accordance with the breed requirements.
Özlem Hacan, Mustafa Tekerli, Samet Çinkaya, and Mustafa Demirtaş
Arch. Anim. Breed., 67, 561–570, https://doi.org/10.5194/aab-67-561-2024, https://doi.org/10.5194/aab-67-561-2024, 2024
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This study examined genetic changes in body measurements at birth in Turkish Arabian foals born between 1987 and 2007. Significant factors influencing body size traits were identified. Additive genetic and maternal heritabilities varied, highlighting their impacts on foal traits. Results suggest the potential for selective breeding to enhance these traits over time, aiding future breeding strategies in Turkish Arabian horses.
Serdar Koçak, Mustafa Tekerli, Metin Erdoğan, Koray Çelikeloğlu, Ebubekir Yazıcı, Zehra Bozkurt, Özlem Hacan, Mustafa Demirtaş, and Samet Çinkaya
Arch. Anim. Breed., 67, 207–216, https://doi.org/10.5194/aab-67-207-2024, https://doi.org/10.5194/aab-67-207-2024, 2024
Short summary
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It was detected that Texel and myostatin-carrying BC1 lambs were significantly higher than Pırlak and non-carrying BC1 lambs in the MLD area at weaning. Myostatin-carrying BC1 lambs had a superiority to Pırlak lambs in terms of muscle conformation and fatness of the hind leg. Myostatin-carrying BC1 lambs were found to be better than Pırlak in growth performance. It was concluded that the Pırlak lambs may be improved by introgression of myostatin mutation.
Samet Çinkaya and Mustafa Tekerli
Arch. Anim. Breed., 66, 325–333, https://doi.org/10.5194/aab-66-325-2023, https://doi.org/10.5194/aab-66-325-2023, 2023
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This study was carried out to estimate variance components using a univariate animal model accounting for maternal effect by the restricted maximum likelihood (REML) method. Some environmental factors affecting body measurements and ultrasound carcass traits in yearling Anatolian buffalo calves were highlighted for the successful selection program. Genetic and phenotypic correlations and selection responses were also revealed in this study.
Mustafa Tekerli, Metin Erdoğan, Serdar Koçak, Koray Çelikeloğlu, Ebubekir Yazıcı, Özlem Hacan, Zehra Bozkurt, Mustafa Demirtaş, and Samet Çinkaya
Arch. Anim. Breed., 65, 231–238, https://doi.org/10.5194/aab-65-231-2022, https://doi.org/10.5194/aab-65-231-2022, 2022
Short summary
Short summary
Factors such as genotype, sex, type of birth, maternal age, weaning age and birth weight must be considered in evaluation of pre- and post-weaning growth traits. Myostatin mutation was introduced to native Turkish breed Ramlıç by marker-assisted introgression (MAI). The mutation has a positive effect on ultrasonographic carcass traits in crosses. Lambs with myostatin tended to have deeper longissimus muscle and good carcass characteristics, and they may be recommendable for Turkish farmers.
Related subject area
Subject: Quantitative genetics and estimation of breeding value | Animal: Sheep
Expression and functional analysis of GnRH at the onset of puberty in sheep
Comparison of different models for estimation of direct and maternal genetic parameters on body weights in Awassi sheep
Assessment of methane emission traits in ewes using a laser methane detector: genetic parameters and impact on lamb weaning performance
Recent advances in understanding genetic variants associated with growth, carcass and meat productivity traits in sheep (Ovis aries): an update
Variation in KRTAP6-1 affects wool fibre diameter in New Zealand Romney ewes
Genetic variations in the sheep SIRT7 gene and their correlation with body size traits
Linkage disequilibrium and within-breed genetic diversity in Iranian Zandi sheep
Genetic polymorphism in melatonin receptor 1A and arylalkylamine N-acetyltransferase and its impact on seasonal reproduction in Egyptian sheep breeds
Sex influence on genetic expressions of early growth in Afshari lambs
Jihu Zhang, Chenguang Wang, Xiaojun Li, Yongjie Zhang, and Feng Xing
Arch. Anim. Breed., 65, 249–257, https://doi.org/10.5194/aab-65-249-2022, https://doi.org/10.5194/aab-65-249-2022, 2022
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This study investigated the coding sequence (CDS) of the GnRH gene in the ovary of Duolang sheep and the expression of GnRH mRNA in different tissues at the onset of puberty and analyzed the effect of GnRH agonists on ovarian granulosa cells (GCs) of Duolang sheep. The role of GnRH in sheep ovaries at the onset of puberty was elucidated.
Hatice Hızlı, Çiğdem Takma, and Ertan Yazgan
Arch. Anim. Breed., 65, 121–128, https://doi.org/10.5194/aab-65-121-2022, https://doi.org/10.5194/aab-65-121-2022, 2022
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This study was conducted to estimate the (co)variance components for birth and weaning weight (BW and WW) in Awassi sheep. Estimates were calculated from single-trait analysis by AI-REML method, by fitting six different univariate animal models. LogL, AIC, BIC, and the goodness of fit between the two models were compared with the LRT. Model 3 for BW and Model 2 for WW were the best models by LogL; Models 2–4 for BW and Models 2–6 for WW were significant by the LRT ratio test.
Jessica Reintke, Kerstin Brügemann, Tong Yin, Petra Engel, Henrik Wagner, Axel Wehrend, and Sven König
Arch. Anim. Breed., 63, 113–123, https://doi.org/10.5194/aab-63-113-2020, https://doi.org/10.5194/aab-63-113-2020, 2020
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Methane (CH4) emissions represent an energy loss. Our study analyzes phenotypic and genetic relationships between ewe CH4 records (using a laser technique), energy efficiency traits and body weight development from their lambs (intergenerational perspective). Large levels of ewe CH4 emissions were genetically unfavorably correlated with lamb weight and ewe body condition traits, indicating improvements in lamb weaning performance and ewe energy efficiency when breeding in reduced CH4 emissions.
Alexander S. Zlobin, Natalia A. Volkova, Pavel M. Borodin, Tatiana I. Aksenovich, and Yakov A. Tsepilov
Arch. Anim. Breed., 62, 579–583, https://doi.org/10.5194/aab-62-579-2019, https://doi.org/10.5194/aab-62-579-2019, 2019
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In this study we performed comprehensive search for QTLs focusing on single nucleotide polymorphisms (SNPs) associated with growth and meat traits in sheep. The database contains information about 156 SNP–trait associations (123 unique SNPs) and a list of 165 associated genes. The updated information is freely available at https://github.com/Defrag1236/Ovines_2018.
Wenhao Li, Hua Gong, Huitong Zhou, Jiqing Wang, Shaobin Li, Xiu Liu, Yuzhu Luo, and Jon G. H. Hickford
Arch. Anim. Breed., 62, 509–515, https://doi.org/10.5194/aab-62-509-2019, https://doi.org/10.5194/aab-62-509-2019, 2019
Hongwei Xu, Xiaoyu Zhang, Rongxin Zang, Yong Cai, Xin Cao, Jutian Yang, Jie Li, Xianyong Lan, and Jianping Wu
Arch. Anim. Breed., 62, 189–197, https://doi.org/10.5194/aab-62-189-2019, https://doi.org/10.5194/aab-62-189-2019, 2019
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In this study, two novel indels within the sheep SIRT7 gene, 5′ promoter region-insertion-7 bp and 3′ UTR-insertion-17 bp, were identified in 709 individuals from five different Chinese and Mongolian sheep breeds. Genetic diversity within the SIRT7 gene and its effect on body size traits were explored. The findings from this research will potentially provide useful DNA markers for the improvement of economic traits in sheep genetic breeding.
Seyed Mohammad Ghoreishifar, Hossein Moradi-Shahrbabak, Nahid Parna, Pourya Davoudi, and Majid Khansefid
Arch. Anim. Breed., 62, 143–151, https://doi.org/10.5194/aab-62-143-2019, https://doi.org/10.5194/aab-62-143-2019, 2019
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Analysis of the genomic variation within a breed is an essential requirement for keeping the breed’s integrity and for defining proper breeding objectives. This research aimed to analyze the genomic structure of Iranian Zandi sheep and showed that a more dense marker is required to achieve genetic gain in Zandi sheep using genomic selection. Attention should be given to adopting an optimal mating system in order to avoid the further loss of genetic diversity in this breed.
Hager A. Fathy, Eman M. Gouda, Jehan A. Gafer, Mona K. Galal, and Amira M. Nowier
Arch. Anim. Breed., 61, 505–516, https://doi.org/10.5194/aab-61-505-2018, https://doi.org/10.5194/aab-61-505-2018, 2018
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This study was carried out to detect polymorphisms in the melatonin receptor 1A and arylalkylamine N-acetyltransferase genes and their association with reproductive traits. Blood samples of 126 animals from three Egyptian sheep breeds were collected. DNA was extracted and subjected to PCR-restriction fragment length polymorphism analysis using the RsaI and SmaI enzymes. Two alleles (C and T) and three genotypes (CC, CT and TT) for MTNR1A and for AA-NAT (A and G; GG, GA and AA) were detected.
F. Ghafouri-Kesbi and D. R. Notter
Arch. Anim. Breed., 59, 9–17, https://doi.org/10.5194/aab-59-9-2016, https://doi.org/10.5194/aab-59-9-2016, 2016
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Sexual dimorphism for growth-related traits in Afshari lambs was studied. Greater estimates of residual and maternal variances in male lambs together with interactions between sex of lamb with effects of birth year and birth type suggested greater environmental sensitivity of male lambs compared to female lambs. However, cross-sex genetic correlations were positively high, suggesting no need or opportunity for sex-specific selection to create or modify sexual-size dimorphism in sheep.
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Short summary
Associations of different regions of BMPR1B, BMP15, and GDF9 genes with litter size were analyzed in Ramlıç and Dağlıç sheep. A total of 51 SNPs in Ramlıç and 54 in Dağlıç sheep were detected. The slopes of significant regression coefficients in four SNPs for Ramlıç and two for Dağlıç in the BMPR1B gene as well as one deletion mutation in the BMP15 gene of Ramlıç were in the direction of the rare allele. Candidate QTNs determined in this study could be used to produce more prolific sheep.
Associations of different regions of BMPR1B, BMP15, and GDF9 genes with litter size were...