不同同期发情及定时输精技术对新疆细毛羊受胎率的影响
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摘要
新疆细毛羊为季节性发情动物,大多数细毛羊每年产1胎,多为1胎单羔。因此,受胎率是决定养羊经济效益的关键因素之一。定时输精技术可以有效地提高母畜的利用率和受胎率,已成为养羊生产中的一项重要技术。为了提高绵羊的繁殖效率,本试验采取3种不同方法分别对青年母羊进行同期发情处理,比较研究了发情后不同定时输精技术及输精时间对受胎率的影响。结果表明,3种同期发情的处理方法均取得了较高的同期发情率,其中CIDR栓+PGF2α方法的同期发情效果较好;青年母羊最佳定时输精技术是腹腔镜输精技术;最佳输精时间为发情后的48 h。
Xinjiang fine-wool sheep are seasonal estrus animals, and most fine-wool sheep produce one child per year, mostly onechild single lamb. Therefore, the conception rate is one of the key factors determining the economic benefits of raising sheep. Timed insemination technology can effectively improve the utilization rate and conception rate of female animals. This technology has become an important practical technology in sheep production. In order to improve the reproductive efficiency of sheep, this experiment adopts three different methods to deal with the estrus of young ewes. The effects of different timing infusion techniques and insemination time on conception rate after estrus were compared. The results showed that of the three simultaneous estrus treatment methods had a higher estrus rate, and the CIDR suppository+PGF2α method had better estrus at the same time; the best timed insemination technique for young ewes was laparoscopic insemination technique. The best insemination time is 48 h after estrus.
Xinjiang fine-wool sheep are seasonal estrus animals, and most fine-wool sheep produce one child per year, mostly onechild single lamb. Therefore, the conception rate is one of the key factors determining the economic benefits of raising sheep. Timed insemination technology can effectively improve the utilization rate and conception rate of female animals. This technology has become an important practical technology in sheep production. In order to improve the reproductive efficiency of sheep, this experiment adopts three different methods to deal with the estrus of young ewes. The effects of different timing infusion techniques and insemination time on conception rate after estrus were compared. The results showed that of the three simultaneous estrus treatment methods had a higher estrus rate, and the CIDR suppository+PGF2α method had better estrus at the same time; the best timed insemination technique for young ewes was laparoscopic insemination technique. The best insemination time is 48 h after estrus.
引文
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[21]李成,张利平,吴建平,等.PMSG对甘肃高山细毛羊同期发情和繁殖率的影响[J].草业科学,2015(11):1907-1912.
[22]张居农,王东军,赵玉斌.利用同期发情技术提高山区牧场绵羊繁殖率的研究[J].新疆农业科学,2001(增刊):94-95.
[23]郭延华,刘长彬,万鹏程,等.肉羊胚胎移植成活的影响因素实例分析[J].新疆农业科学,2017,54(11):2138-2145.
[24]张新军,刘长彬,倪建宏,等.优质綿羊冷冻胚胎引进及胚胎移植试验[J].新疆农垦科技,2016(11):35-37.
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[26]郭春润,刘国庆.氯前列烯醇控制綿羊同期发情的试验研究[J].辽宁畜牧兽医,1999(1):7-8.
[27]侯引绪,李玉冰.氯前列烯醇诱导綿羊同期发情试验[J].当代畜牧,2004(5):36.
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[29]吴俊辉,曹丁壬,刘艳婷,等.家畜定时输精技术研究进展与应用现状[J].中国畜牧兽医,2016,43(7):1826-1833.
[2]赵明礼,张珅,郝海生,等.同期发情和同期排卵-定时输精技术在奶牛繁殖中的应用[J].中国畜牧杂志,2015,51(17):80-85.
[3]高志英,霍飞,艾尼阿木提,等.多浪羊同期发情、定时输精效果探讨[J].中国草食动物科学,2014,34(4):80-81.
[4]石国庆,曾培坚,杨永林,等.绵羊腹腔内窥镜子宫角深部冷冻精液输精试验[J].新疆农业科学,2001(S1):72-73.
[5]陈西英.应用前列腺素和阴道海绵栓促进绵羊同期发情的试验[J].青海畜牧兽医杂志,2011,41(4):23.
[6]Rowson L E A,Moore R M.Embryo transfer in sheep:the significance of synchronizing oestrus in the sonor and recipient animal[J].J Reprod Fertil,1986,11(7):207-212.
[7]李秋艳,张忠诚,阎凤祥.影响小尾寒羊同期发情效果因素的研究[J].畜牧兽医杂志,2001,20(2):7-11.
[8]Godfrey R W,Gray M L,Collins J R.A comparison of two methods of estrous synchronization of hair sheep in the tropics[J].Animal Reprod Sci,1997,47(1-2):99-106.
[9]Jabbar G,Um berger S H,Lewis G S,et al.Melengestrol acetate and norgestomet for the induction of synchronized estrus in seasonally an ovular ewes[J].J Anim Sci,1994,72(12):3049-3054.
[10]Godfrey R W,Gray M L,Collins J R.A comparison of two methods of estrous synchronization of hair sheep in the tropics[J].Animal Reprod Sci,1997,47(1-2):99-106.
[11]Powell M R,Kaps M,Lamberson W R,et al.Use of melengestrol accrate-based treatment to induce and synchronization oestrus in seasonally anestrous ewes[J].J Anim Sci,1996,74(10):2292.302.
[12]辛晓玲,王二耀,滑留帅,等.生殖激素诱导小尾寒羊同期发情的研究[J].动物医学进展,2016,37(3):67-70.
[13]艾合麦提江·吐尔逊,王旭光,阿拉法特,等.不同季节同期发情对巴音布鲁克羊受胎率及产羔率的影响[J].中国草食动物科学,2016,36(2):67-69.
[14]张旭刚.二次注射PG法绵羊同期发情效果分析[J].当代畜牧,2016(4下):32-33.
[15]尼珍.不同处理方法对西藏河谷型绵羊同期发情效果的对比分析[J].当代畜牧,2015(10中):95-96.
[16]魏玉刚.阿勒泰羊不同同期发情处理方法效果分析[J].新疆畜牧业,2015(11):23-24.
[17]仲荣.外源激素诱导阿勒泰羊同期发情及人工授精试验[J].黑龙江动物繁殖,2015,23(6):10-11.
[18]余忠祥.氯前列醇注射液(PG)诱导高原型藏羊同期发情效果[J].青海畜牧兽医杂志,2016,40(1):17-18.
[19]徐建峰,王珂,吕永峰,等.不同处理方法对绵山羊同期发情效果的影响[J].畜牧兽医杂志,2016,35(1):1-3,12.
[20]包拉花,莫德日乐吐,王海军,等.同期发情处理绵羊发情规律探讨[J].畜牧与饲料科学,2015,36(11):51-54,75.
[21]李成,张利平,吴建平,等.PMSG对甘肃高山细毛羊同期发情和繁殖率的影响[J].草业科学,2015(11):1907-1912.
[22]张居农,王东军,赵玉斌.利用同期发情技术提高山区牧场绵羊繁殖率的研究[J].新疆农业科学,2001(增刊):94-95.
[23]郭延华,刘长彬,万鹏程,等.肉羊胚胎移植成活的影响因素实例分析[J].新疆农业科学,2017,54(11):2138-2145.
[24]张新军,刘长彬,倪建宏,等.优质綿羊冷冻胚胎引进及胚胎移植试验[J].新疆农垦科技,2016(11):35-37.
[25]桑润滋,李建国.国产氯前列烯醇诱导河北细毛羊同期发情试验(初报)[J].河北农业大学学报,1995,18(增刊):171-173.
[26]郭春润,刘国庆.氯前列烯醇控制綿羊同期发情的试验研究[J].辽宁畜牧兽医,1999(1):7-8.
[27]侯引绪,李玉冰.氯前列烯醇诱导綿羊同期发情试验[J].当代畜牧,2004(5):36.
[28]拓守珍,王忠明.氯前列醇钠诱导母羊同期发情人工授精配种试验报告[J].中国畜牧杂志,2005(4):35-36.
[29]吴俊辉,曹丁壬,刘艳婷,等.家畜定时输精技术研究进展与应用现状[J].中国畜牧兽医,2016,43(7):1826-1833.