{"title":"Amenorative effects of exogenous gonadotropins on reproductive profiles of replacement gilts with delayed puberty in a farm in Thailand.","authors":"Nutthee Am-In, Atthaporn Roongsitthichai","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>This study was to investigate the effect of gonadotropins on reproductive profiles of replacement gilts with delayed puberty. Totally, 136 Landrace X Yorkshire crossbred gilts, were categorized into control (n = 58) and treatment (n = 78) groups. Gonadotropins (400 U eCG plus 200 IU hCG) were administered in treatment group only. The results revealed that gilts in treatment group had higher number of gilts with estrus (92.3 vs 25.9%, P < 0.001), shorter onset to estrus (4.7 ± 0.3 vs 9.0 ± 0.8 d, P < 0.001), higher number of dominant follicles (18.0 ± 0.2 vs 13.2 ± 0.3 follicles, P < 0.001), and higher farrowing rate (87.5 vs 53.3%, P = 0.002) than those in control group. In conclusion, gonadotropins containing 400 IU eCG plus 200 IU hCG could improve reproductive profiles in replacement gilts with delayed puberty.</p>","PeriodicalId":56285,"journal":{"name":"Japanese Journal of Veterinary Research","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Journal of Veterinary Research","FirstCategoryId":"97","ListUrlMain":"","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This study was to investigate the effect of gonadotropins on reproductive profiles of replacement gilts with delayed puberty. Totally, 136 Landrace X Yorkshire crossbred gilts, were categorized into control (n = 58) and treatment (n = 78) groups. Gonadotropins (400 U eCG plus 200 IU hCG) were administered in treatment group only. The results revealed that gilts in treatment group had higher number of gilts with estrus (92.3 vs 25.9%, P < 0.001), shorter onset to estrus (4.7 ± 0.3 vs 9.0 ± 0.8 d, P < 0.001), higher number of dominant follicles (18.0 ± 0.2 vs 13.2 ± 0.3 follicles, P < 0.001), and higher farrowing rate (87.5 vs 53.3%, P = 0.002) than those in control group. In conclusion, gonadotropins containing 400 IU eCG plus 200 IU hCG could improve reproductive profiles in replacement gilts with delayed puberty.
本研究旨在探讨促性腺激素对青春期延迟的后备后备母猪生殖特征的影响。选取136头长×大杂交后备母猪，分为对照组(n = 58)和处理组(n = 78)。治疗组仅给予促性腺激素(400 U eCG + 200 IU hCG)。结果表明，与对照组相比，治疗组的发情母猪数较高(92.3 vs 25.9%， P < 0.001)，发情起始时间较短(4.7±0.3 vs 9.0±0.8 d, P < 0.001)，优势卵泡数较高(18.0±0.2 vs 13.2±0.3,P < 0.001)，产仔率较高(87.5 vs 53.3%， P = 0.002)。综上所述，含有400 IU eCG和200 IU hCG的促性腺激素可以改善青春期延迟的后备后备母猪的生殖状况。
期刊介绍：
The Japanese Journal of Veterinary Research (JJVR) quarterly publishes peer-reviewed articles on all aspects of veterinary science. JJVR was originally published as a “University Journal” of veterinary science at Hokkaido University from more than 60 years ago. Currently, JJVR, is Japan’s leading scientific veterinary journal, and provides valuable information for the development of veterinary science by welcoming contributions from researchers worldwide.
JJVR offers online submission for Regular Papers, Short Communications, and Review Articles that are unpublished and not being considered for publication elsewhere. Research areas include:
Anatomy, Physiology, Biochemistry, Pharmacology, Microbiology, Infectious diseases, Parasitology, Laboratory Animal Science and Medicine, Internal Medicine, Surgery, Pathology, Theriogenology, Molecular Medicine, Public Health, Radiation Biology, Toxicology, Wildlife Biology and Medicine, Veterinary Hygiene, The other fields related to veterinary science.
分享
京公网安备 11010802042870号
京ICP备2023020795号-1
求助内容：
应助结果提醒方式：
扫码关注我们
