Articles | Volume 58, issue 2
https://doi.org/10.5194/aab-58-451-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/aab-58-451-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Original study
| 
10 Dec 2015
Original study |
| 10 Dec 2015
Effects of ewe live weight and age on reproductive performance, lamb growth, and survival in Central Anatolian Merino sheep
Department of Animal Science, Bahri Dağdaş International Agricultural Research Institute, 42020 Konya, Turkey
Ş. Dursun
Department of Clinical Sciences, Faculty of Veterinary Medicine, Aksaray University, 68000 Aksaray, Turkey
Ş. Doğan
Department of Animal Science, Bahri Dağdaş International Agricultural Research Institute, 42020 Konya, Turkey
Department of Animal Science, Faculty of Agriculture, Eskişehir Osmangazi University, 26160 Eskişehir, Turkey
U. Demirci
Department of Animal Science, Bahri Dağdaş International Agricultural Research Institute, 42020 Konya, Turkey
İ Halıcı
Department of Animal Science, Bahri Dağdaş International Agricultural Research Institute, 42020 Konya, Turkey
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Ewes' reproductive performance could be predicted using the data available early in their life. Ewe birth rank, dam birth rank, first litter size, and first lambing interval are significantly associated with ewe reproductive performance up to the fourth year of life. Precise prediction of ewe reproductive performance using the early predictors is impossible due to the low R2 predicted. The value of the lower threshold of the 95 % prediction interval might be useful in making selection decisions.
Shijie Xue, Kaidong Liu, Le Zhao, Lisheng Zhou, Xiaoxiao Gao, Lirong Liu, Nan Liu, and Jianning He
Arch. Anim. Breed., 66, 93–102, https://doi.org/10.5194/aab-66-93-2023, https://doi.org/10.5194/aab-66-93-2023, 2023
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In this study, we found that miR-369-3p inhibits the proliferation and differentiation of Aohan fine-wool sheep (AFWS) preadipocytes. This study provides a theoretical basis for further exploration of the molecular mechanism of fat deposition in sheep and other livestock.
Ruixue Hu, Xunping Jiang, Huiguo Yang, and Guiqiong Liu
Arch. Anim. Breed., 66, 81–91, https://doi.org/10.5194/aab-66-81-2023, https://doi.org/10.5194/aab-66-81-2023, 2023
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Genes enriched in sensory perception were positively selected via selection signature analysis between wild Asiatic mouflon and domesticated Hu sheep. Among them, RDH5 is one of the key enzymes in the synthesis of retinoic acid (RA), which is related to human retinopathy. The c.722T>C/p.M241T mutation of RDH5 affects retinol dehydrogenase activity in the domestication process of sheep.
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Arch. Anim. Breed., 66, 61–69, https://doi.org/10.5194/aab-66-61-2023, https://doi.org/10.5194/aab-66-61-2023, 2023
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This study aimed to understand the effects of adding low-dose oxytocin hormone into ram semen on the pregnancy rate and reproductive efficiency of sheep. A total of 53 out of 122 Chios ewes were inseminated with oxytocin hormone content, and successful pregnancy was achieved 90.56 % of them. In examination of the pregnancy rate, one of the indicators of reproductive performance, the difference between the groups is statistically significant (p = 0.046; p ≤ 0.05).
Jian Tao Wang, Guo Sen Wang, Yuan Fang Gong, Xian Qiao, Xiang Li, Gui Zhu Wang, Ying Zhen Zheng, Jian Guo Lv, Xiang Long Li, and Zheng Zhu Liu
Arch. Anim. Breed., 65, 417–426, https://doi.org/10.5194/aab-65-417-2022, https://doi.org/10.5194/aab-65-417-2022, 2022
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Three-way crossbreeding was performed with Australian White, Dorper, and Charollais as terminal male parents and elite F1 hybrids of Australian × Han, Dorper × Han, and Charollais × Han as female parents. Based on the growth of three-way crossbred and Small-tailed Han lambs as well as the effects of CLPG, the offspring of male Australian White and female Charollais × Han showed apparent heterosis, and the individuals with the T allele had improved body weight and body size.
Ayhan Ceyhan, Mustafa Avcı, Mehmet Mustafa Tanrıkulu, Beyza Yılmaz, and Mubeen Ul Hassan
Arch. Anim. Breed., 65, 407–416, https://doi.org/10.5194/aab-65-407-2022, https://doi.org/10.5194/aab-65-407-2022, 2022
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This study aimed to evaluate the effect of concentrate-based feeding (CF) and artificial pasture-based grazing (APG) management systems on milk yield, fatty acid, nutritional indices, and milk physicochemical characteristics of Awassi ewes.
Levent Mercan, Mehmet A. Cam, Mustafa Olfaz, Koray Kirikci, Hacer Tufekci, and Unal Kilic
Arch. Anim. Breed., 65, 341–352, https://doi.org/10.5194/aab-65-341-2022, https://doi.org/10.5194/aab-65-341-2022, 2022
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This article investigated the lamb meat physical, chemical, instrumental, and sensory quality characteristics of 60 meat samples from five indigenous sheep breeds. As meat quality is vital in healthy and balanced nutrition, the presented results will benefit consumers, nutritionists, and those working in this field.
Mustafa Tekerli, Metin Erdoğan, Serdar Koçak, Koray Çelikeloğlu, Ebubekir Yazıcı, Özlem Hacan, Zehra Bozkurt, Mustafa Demirtaş, and Samet Çinkaya
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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.
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Here we clarify the specific expression and mechanism of the EPH receptor and Ephrin during the development of hair follicles, as well as their upstream and downstream signaling pathways and activation pathways. This study verified the effect of EPHA4 and Ephrin A3 genes on fine-hair follicles through RT-qPCR and immunohistochemistry testing. It is of great significance as it could speed up the promotion of breeding sheep for wool.
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This research aimed to determine the effects of body weight, the body condition score (BCS), body measurements, birth type, birth weight and sex on the gestational length in sheep. The lowest and highest gestational lengths were found to be 148.90 and 151.41 d respectively. It is thought that the use of the BCS, which is easily applied by the breeder, will have a positive effect on determining the bodily reserves of sheep and the reproductive efficiency as well as on obtaining healthy lambs.
Mehmet Sarı, Yüksel Aksoy, Kadir Önk, Hakan Erinç, Serpil A. Işık, and Muammer Tilki
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Milan Margetín, Marta Oravcová, Jana Margetínová, and Róbert Kubinec
Arch. Anim. Breed., 61, 395–403, https://doi.org/10.5194/aab-61-395-2018, https://doi.org/10.5194/aab-61-395-2018, 2018
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Fatty acid composition in the intramuscular fat of the musculus longissimus dorsi of Ile de France purebred lambs in two production systems (lambs and ewes were assigned to pasture and fed without concentrates vs. lambs and ewes were assigned to a stable and fed with hay/silage and concentrates) was evaluated using gas chromatography. An analysis of variance was used for comparison. No such comparison had previously been carried out in Slovakia. Meat from lambs assigned to pasture was better.
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Arch. Anim. Breed., 61, 221–228, https://doi.org/10.5194/aab-61-221-2018, https://doi.org/10.5194/aab-61-221-2018, 2018
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In sheep production, the body condition scores and parities are important environmental factors affecting lamb yield. Extreme body condition scores (fattening state) lead to negative effects on lamb yield. In the present study, it was revealed that ewes with medium and fat body condition scores (BCS: 2.5–4.0) were profitable. It was shown that the body condition score had minimal effects on the birth weights of lambs, and the incidence of dystocia was increased in thin and very fat ewes.
Martin Ptáček, Jaromír Ducháček, Luděk Stádník, Josef Hakl, and Milena Fantová
Arch. Anim. Breed., 60, 43–50, https://doi.org/10.5194/aab-60-43-2017, https://doi.org/10.5194/aab-60-43-2017, 2017
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The aim of this study was to perform a multivariate analysis of lambs' birth weight, survivability traits, growth performance traits, and other defined factors. The study focused on one flock of Suffolk sheep kept under permanent pasture management. Overall 1012 lambs were investigated over 3 years. The results of the study detected lambs' optimal birth weight for this management system. This study also suggested practical implications of important factors when improving flock profitability.
Ewa Kuźnicka, Witold Rant, Aurelia Radzik-Rant, Małgorzata Kunowska-Slósarz, and Marek Balcerak
Arch. Anim. Breed., 59, 145–150, https://doi.org/10.5194/aab-59-145-2016, https://doi.org/10.5194/aab-59-145-2016, 2016
Ferda Karakuş and Metin Atmaca
Arch. Anim. Breed., 59, 107–112, https://doi.org/10.5194/aab-59-107-2016, https://doi.org/10.5194/aab-59-107-2016, 2016
A. Kaić, B. Mioč, A. Kasap, and K. Potočnik
Arch. Anim. Breed., 59, 1–8, https://doi.org/10.5194/aab-59-1-2016, https://doi.org/10.5194/aab-59-1-2016, 2016
K. Tindano, N. Moula, A. Traoré, P. Leroy, and N. Antoine-Moussiaux
Arch. Anim. Breed., 58, 415–423, https://doi.org/10.5194/aab-58-415-2015, https://doi.org/10.5194/aab-58-415-2015, 2015
F. Karakus, A. Ö. Demir, S. Akkol, A. Düzgün, and M. Karakus
Arch. Anim. Breed., 58, 287–292, https://doi.org/10.5194/aab-58-287-2015, https://doi.org/10.5194/aab-58-287-2015, 2015
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Short summary
We aimed to evaluate the effects of premating ewe weight and age on ewe reproductive performance and lamb growth and survival in Central Anatolian Merino sheep. Multiple birth rate, birth weight, and growth performance of the lambs increased proportionally with the increase in live weight of the ewes prior to mating. Therefore, it is important to increase the live weight of lambs at puberty and to select ewes that attain a higher premating weight for breeding.
We aimed to evaluate the effects of premating ewe weight and age on ewe reproductive performance...
