Effects of kisspeptin-10 on the reproductive performance of sows in a fixed-time artificial insemination programme
文献类型： 外文期刊
第一作者： Qin, Y. S.
作者： Qin, Y. S.;Bai, J. H.;Xu, X. L.;Feng, T.;Song, Y. Q.;Xiao, L. L.;Liu, Y.;Zhang, S. L.;Dai, J. G.
作者机构：
关键词： Batch farrowing; Ovulation induction; Reproduction performance; Swine; Synchronisation
期刊名称：ANIMAL （ 影响因子：3.73； 五年影响因子：3.908 ）
ISSN： 1751-7311
年卷期： 2022 年 16 卷 5 期
页码：
收录情况： SCI
摘要： Kisspeptin (KP) is a major positive regulator of the hypothalamo-pituitary-gonadal axis and affects female reproductive cyclicity in mammals. It offers an attractive alternative strategy to control reproduction in fixed-time artificial insemination (FTAI) protocols. We aimed to evaluate the effects of different doses of kisspeptin-10 (KP-10) on sow reproductive performance in FTAI protocols. One hundred ninety-eight weaned sows were divided into three groups at random. A FTAI-GnRH group of sows (n = 98) received 100 lg (2 mL) gonadotropin-releasing hormone (GnRH; gonadorelin) by intramuscular injection at 96 h after weaning (t = 0 h); FTAI-KPL (KPL: low-dose KP-10, n = 50), and FTAI-KPH groups of sows (KPH: high-dose KP-10, n = 50) received 0.5 or 1 mg KP-10 (2 mL) respectively at 96 h after weaning. Sows were checked twice daily for oestrus. Ultrasonographic evaluations were performed to determine the follicular diameter and time of ovulation; blood samples were collected immediately before injection (t0 = 0 min) and at 15, 30, 45, 60, 75, 90 min, 24 and 48 h postinjection. Sows were inseminated at 112 and 132 h after weaning. The oestrus rates (96 vs 92%; 96 vs 88%) and weaning-to-oestrus intervals (98.9 vs 98.6 h; 98.9 vs 97.1 h) were not affected by treatment, but oestrus in the FTAI-KPL group was significantly longer than in the FTAI-GnRH group (38.7 vs 30.0 h; P < 0.05). The peak LH concentrations were 1.29 times greater than at t0 = 0 in the FTAI-GnRH group, and 1.45 and 1.44 times greater than at t0 = 0 in the FTAI-KPL and FTAI-KPH groups, respectively. Follicular diameters and pregnancy rates (86 vs 88%, 86 vs 80%, respectively) did not differ between the treatments. Moreover, the total numbers of piglets born and those born alive did not differ among the three groups. These findings suggested that 0.5 mg KP-10 given at 96 h after weaning could be used in FTAI programmes to manage batch farrowing in sows. (c) 2022 Published by Elsevier B.V. on behalf of The Animal Consortium. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
分类号：
- 相关文献
作者其他论文 更多>>
-
Supplementing pigeon grit with acidifier improves metabolism and the reproductive performance of breeding pigeons as well as the development of growth performance of squabs
作者：Zheng, S.;Tang, Y.;Huang, W.;Zhang, W.;Zhang, Y.;Yang, M.;Lu, H.;Li, Z.;He, Y.;Gao, H.;Wang, W.;Peng, J.;Huang, Y.;Liang, Y.;Qiu, X.;Liu, Y.;Gou, Z.;Qiu, Z.;Bin, Y.;Zhang, Z.;Wang, W.;Huang, Y.
关键词：Acidifier; breeder pigeon; squab; performance; metabolism
-
Organic selenium supplementation increases serum selenium levels in healthy Xinjiang brown cattle fed selenised yeast
作者：Li, Z.;Tang, J.;Li, J.;Ling, D.;He, X.;Tang, Y.;Yi, P.;Yang, Y.;Li, Z.;Li, J.;He, X.;Tang, Y.;Yi, P.;Tang, J.;Khoo, H. E.;Liu, Y.
关键词：blood metabolites; Bos taurus; enzyme activity; red dates; slaughter performance
-
Comparative transcriptomic analyses reveal key genes underlying melanin distribution during embryonic development in geese (Anser anser)
作者：Yang, Y.;Wang, C.;Liu, Y.;Li, G.;Wang, X.;Wang, H.;He, D.
关键词：Graylag geese; melanin; genetics; dorsal skin; distal feet
-
Effects of fermented cottonseed meal inclusions on growth performance, serum biochemical parameters and hepatic lipid metabolism of geese during 28-70 d of age
作者：Xie, S. S.;Shen, J. J.;Liu, Y.;Wang, W. C.;Yang, L.;Zhu, Y. W.;Yang, Z. L.
关键词：goose; fermented cottonseed meal; growth performance; serum biochemical parameters; hepatic lipid metabolism
-
Transcriptome analysis reveals heat shock protein 70 (HSP70) induced by tembusu virus infection is associated with immune responses
作者：Zhao, D.;Han, K.;Zhang, L.;Huang, X.;Liu, Q.;Yang, J.;Liu, Y.;Li, Y.;Wu, F.;Zhao, D.;Zhao, D.;Zhao, D.;Han, K.;Zhang, L.;Huang, X.;Liu, Q.;Yang, J.;Liu, Y.;Li, Y.;Wu, F.
关键词：heat shock protein 70; innate immune response; tembusu virus; transcriptome analysis
-
Low-depth Raw Reads of Nanopore Sequencing Enables Rapid and Accurate Bacterial Identification
作者：Gao, W.;Hong, W.;Wu, Y.;Liu, Y.;Fan, X.;Wang, H.;Wang, M.;Yang, B.;Wang, T.;Li, H.;Liu, S.;Li, J.
关键词：assembly; reads; Nanopore sequencing; Illumina sequencing; bacterial identification
-
First Report of Pectobacterium versatile Causing Diseases on Potato in Xinjiang Uygur Autonomous Region and Heilongjiang Province, China
作者：Handique, U.;Wu, Y. J.;Duan, J.;Lv, J.;Zhang, R. F.;Wu, J.;Liu, Y.
关键词：aerial stem rot; blackleg; China; Pectobacterium versatile; potato
