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为了研究不同外源激素组合对银狐繁殖力的影响,随机选择健康母银狐50只,分为4个试验组和1个对照组,每组10只。在母狐排卵的前10 d开始对4个试验组注射外源激素,每组注射两种激素（第1激素和第2激素）,每组的第1激素和第2激素有所不同;对照组母狐按常规方式饲养管理。结果表明,试验1组（PMSG+HCG激素组）平均产仔数比对照组多1.3只/母,差异极显著（P＜0.01）;试验4组（FSH+LH激素组）平均产仔数比对照组多0.9只/母,差异显著（P＜0.05）;试验2组（三合激素+LRHA3激素组）、试验3组（LRHA3+LRHA3激素组）平均产仔数与对照组间无显著差异（P＞0.05）;试验1组与试验2、3组间差异显著（P＜0.05）,而与试验4组间差异不显著（P＞0.05）;试验2、3、4组间差异不显著（P＞0.05）。通过性价比对比,PMSG+HCG激素组合的性价比（0.078）为最高;而另外3组激素组合的性价比均较低。综上所述,PMSG+HCG激素组合平均产仔数多、激素性价比高,应用效果显著。 相似文献
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为了研究不同激素对诱导母犬发情和产仔效果的影响,选用110只长期不发情的母犬作为试验动物,试验共分5个组,试验Ⅰ组肌肉注射PMSG,试验Ⅱ组使用PMSG和HCG组合分别肌肉注射,试验Ⅲ组使用PMSG和LRH-3组合分别肌肉注射,试验Ⅳ组使用PMSG、PGF2α、E2和LRH-34种药物组合分别肌肉注射,另设对照组,分别观察诱导发情和产仔效果。结果表明,在发情表现方面,试验Ⅳ组效果最好,在阴门肿胀程度、流血性分泌物及阴道上皮角化程度等方面均表现为高度反应;在发情率方面,试验Ⅳ组分别比试验Ⅰ组、试验Ⅱ组和试验Ⅲ组提高了32%、28%和20%,差异极显著(P<0.01);在受胎率方面,试验Ⅳ组的受胎率最高,为76%,分别比试验Ⅰ组、试验Ⅱ组和试验Ⅲ组提高了35%、20.4%和10%,试验Ⅰ组、试验Ⅱ组和试验Ⅳ组之间差异极显著(P<0.01),试验Ⅲ组和试验Ⅳ组之间差异极显著(P<0.01);在产仔数方面,试验Ⅳ组共产仔130只,分别比试验Ⅰ组、试验Ⅱ组、试验Ⅲ组多产92、74和45只,差异极显著(P<0.01)。对照组没有使用任何药物,发情率最低,只有10%,受胎率为0。试验结果显示,PMSG、PGF2α、E2、LRH-34种激素药物联合使用促进发情效果最好,在受胎率、产仔数方面均明显优于单独或其他组合使用的效果。 相似文献
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对注射外源生殖激素对后备母猪、断奶母猪生殖能力的影响进行了探讨、研究。试验选择9月龄健康纯种大白和长白母猪,分析外源生殖激素(或者激素组合)对母猪发情及产仔情况的影响。结果表明,肌肉注射800IU和1000IU绒毛膜促性腺激素(HCG)均能显著提高后备母猪受孕率;肌注孕马血清促性腺激素(PMSG)800IU+HCG400IU可显著提高大白纯种母猪的发情、受孕及产仔率;使用氯前列烯醇(PG)或者与PMSG、HCG组合使用,在发情率和受孕率、产仔数等方面都有较好的效果。研究指出注射外源生殖激素的方法可以有效调控母猪的生殖能力,诱发后备母猪和断奶乏情母猪发情面具有实际应用价值。 相似文献
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不同激素组合处理乏情母猪的对比试验 总被引：1，自引：0，他引：1
用三合激素、孕马血清促性腺激素 (PMSG)分别结合绒毛膜促性腺激素 (HCG)对产后乏情母猪进行诱情处理 ,结果表明 :(1 )PMSG处理后 5d内诱导发情率为 1 0 0 % (比国外同类试验高 8%左右 ) ,第一情期受胎率为 83.3% ,比三合激素处理组高 76 %。 (2 )三合激素处理组受胎母猪的平均产仔数 (8.2 2± 1 .6 2 )头 ,明显低于PMSG处理组 (1 0 .5 0± 0 .82 )头 (P <0 .0 5 ) ,说明PMSG +HCG处理乏情母猪效果较好。三合激素处理组的未孕母猪返情受胎率高 ,说明第二情期多为正常发情。 (3)两种处理均对乏情母猪的繁殖机能有促进作用 ,且对处理后的母猪没有负面影响 相似文献
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使用PMSG、HCG调节繁殖末期母蓝狐发情和产仔效果的试验研究 总被引：4，自引：0，他引：4
为了提高乏情母狐的利用率,第1年对50只没有发情表现的青年母蓝狐同时一次注射PMSG200IU/只,5d后再注射HCG100IU/只,有42只出现明显发情症状并接受公狐爬跨,发情率84%。对发情母狐实施子宫内输精,结果无一产仔;第2年对50只非典型发情的青年母蓝狐同时一次注射PMSG200IU/只,5d后再注射HCG100IU/只,全部出现明显的发情症状并接受交配。对其实施子宫内输精3次,结果有24只产仔,产仔率48%。试验结果表明,在母狐繁殖末期,联合使用PMSG和HCG对没有发情表现的青年母蓝狐有促使其发情的作用,但不能使其产仔;对有发情表现但不明显的青年母蓝狐有促进其发情并能使其部分怀孕和产仔的作用。 相似文献
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增加排卵及加强妊娠识别提高母猪产仔数的研究 总被引：1，自引：0，他引：1
采取发情期使用LRH或HCG的方法进行温和性增排卵 ,增加母猪的产仔数 ;怀孕早期应用“猪胚胎调节因子” (PERF,已获专利申请 ,专利号 0 0 112 0 89 1) ,增加母猪的妊娠识别 ,减少早期胚胎死亡 ;分娩前即运用律胎素控制分娩提高活仔率等综合措施 ,经对 2 95头母猪对比试验 ,结果以LRH 阴户旁PERF 律胎素组和HCG 阴户旁PERF 律胎素组效果最好 ,比同期对照组增加了 0 4 2～ 0 61头 ,与自身前胎相比增加了 0 75～0 77头。 相似文献
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甘肃马鹿同期发情效果初步研究 总被引：4，自引：0，他引：4
将45头甘肃马鹿均分为3组,应用氯前列烯醇(PG)和孕马血清促性腺激素(PMSG)进行同期化处理,处理A组其处理程序为PG+PG+PMSG,处理B组其处理程序为PG+PMSG。结果表明:A、B组5d内的同期发情率(分别为93·3%和86·7%)均高于对照组(P<0·05),但2个处理组间差异不显著(P>0·05);产仔率分别为73·3%和60·0%,比对照组分别提高20%和6·7%,其中A组的双仔率为6·7%;产仔日期比对照组分别缩短了12d和8d。处理组仔鹿的平均初生重也比对照组提高1·53kg,而且A、B2组仔鹿的断奶成活率也比对照组分别提高了2·5和12·5个百分点。总体而言,A组效果较好。 相似文献
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Oestrus synchronisation, fertility and kidding behaviour were studied in 44 Black Bengal goats. They were divided into six experimental groups: group 1, control; group 2, progesterone; group 3, progesterone, pregnant mare serum gonadotrophin (PMSG) and human chorionic gonadotrophin (HCG); group 4, prostaglandin F2 alpha (PGF2 alpha); group 5, PGF2 alpha, PMSG and HCG; group 6, PMSG and HCG. There was 100 per cent synchronisation of oestrus in the groups treated with progesterone, progesterone with PMSG and HCG, and prostaglandin with PMSG and HCG. In the other two treated groups the synchronisation was between 66 and 75 per cent. In the control group only 50 per cent of the animals came into oestrus during the period of observation. The duration of oestrus varied between 19 and 24 hours except in group 5 where it was 40.87 hours. Animals came on heat between 95 and 137 hours after treatment except in group 5 where the interval was only 18.87 hours. A maximum fertility of 75 per cent was observed in group 4 while the kidding percentage was greatest in group 2. There appeared to be no beneficial effect of superovulation on the number of kids produced. Gestation length was similar in all the groups. 相似文献
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不同剂量生殖激素对小鼠超排效果的影响 总被引：1，自引：0，他引：1
为了探讨孕马血清促性腺激素(PMSG)和人绒毛膜促性腺激素(HCG)对小鼠超数排卵的最佳组合剂量、最佳注射时间间隔,本试验以成熟实验小鼠为试验动物,分别采用不同剂量PMSG(5IU、7.5IU、10IU、12.5IU)与不同剂量HCG(5IU、7.5IU、10IU、12.5IU)组合注射小鼠进行排卵效果研究,并以44h、46h、48h、50h的间隔时间对小鼠进行超数排卵处理试验。结果表明,(10+10)IU剂量组合处理的见栓小鼠平均获卵数最高(10.3枚);在注射间隔为48h试验组中见栓小鼠平均获卵数最高(8.4枚)。提示本试验条件下,小鼠超排中PMSG与HCG组合剂量为10IU、注射时间间隔为48h时超排效果较好。 相似文献
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对C57BL／6小鼠超排效果的研究 总被引：1，自引：0，他引：1
本文以近交系C57BL／6小鼠为实验对象．研究注射不同剂量的PMSG和hCG对小鼠超排效果的影响。取C57BL／6小鼠各30只,按照注射剂量不同分为A、B、C三组,每组10只,A组注射PMSG2．5IU,HCG2．5IU,B组注射PMSG5．0IU,HCG5．0IU,C组注射PMSG7．5IU,HCG7．5IU。每只小鼠腹腔注射PMSG,间隔48h后分别注射HCG进行超数排卵,再与性成熟同系公鼠合笼,次日早上检查阴道栓．有栓雌鼠用颈椎脱臼法处死。在实体显微镜下由输卵管膨大部冲卵．收集卵母细胞置于盛有M2培养液的表面皿中检查计数．分析超排效果。结果表明。C57BU6小鼠B组的平均取卵数极显著高于A组的平均取卵数（P〈0．05）;B组的平均取卵数显著高于C组的平均取卵数（P〈0．05）;C组与A组的平均取卵数差异不显著（P〉0．05）。 相似文献
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U Hühn I K?nig P Nowak A L?ffler W Heidler 《Archiv fuer experimentelle veterinaermedizin》1977,31(6):857-860
The time gap between pregnant mare serum gonadotropine injection (PMSG) and subsequent human chorionic gonadotropine injection (HCG) had major effects, within 72 to 80 hours, on the number of animals with recorded toleration reflex to deadline-oriented insemination as well as on actual fertility. Delay of injections within the above limits always led to higher farrowing and piglet rates. HCG injection was round to be optimally timed when 78-80 hours were allowed to elapse from the preceding PMSG injection. 相似文献
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M Alt C Günther L Richter H Plonait 《Berliner und Münchener tier?rztliche Wochenschrift》1989,102(9):298-303
In 72 (46%) of 155 gilts discarded for genetic reasons after performance testing and housed under fattening conditions no heat could have been detected during the first 30 days. The gilts were assigned alternatingly to a control group and four different treatments of delayed puberty. The induction of puberty was carried out by injections of 1000 iu PMSG, 400 iu HCG and 2 mg oestradiol benzoate, 400 iu PMSG and 200 iu HCG and 800 iu PMSG and 400 iu HCG. If there was no estrus gilts were slaughtered 12 days later for examination of the ovaries. Those coming into estrus were slaughtered 8 days after disappearance of estrus. Estrus could be induced in 69 to 94% of the gilts, whereas 40% of the untreated showed estrus signs. After treatment with PMSG and HCG in 40 and 87% of the gilts cysts were found whereas none of the untreated and 26 and 29% of those treated with PMSG und HCG + oestradiol benzoate revealed ovarian cysts. In addition, those gilts that had come into estrus during the first 30 days were given injections of either 1000 iu PMSG or 800 iu PMSG and 400 iu HCG. The injections were made either on the 5th, 10th or 15th day of cycle. In both latter groups significantly more gilts showed standing heat than after treatment at cycle day 5. The results of inspection of the ovaries at slaughter and steroid hormones could not be assigned to a defined stage of the physiological ovarian cycle.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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Thirty-eight gilts were slaughtered on the 25th and 39th days of pregnancy, after they had received 400 I.U. PMSG treatment on the eleventh day of pregnancy. Treated and untreated animals in a group of 140 gilts and 195 adult sows were compared with each other for post-farrowing fertility performance. Weight development of embryos obtained from the slaughtered sows depended on the number of embryos alive. The survival rate of embryos from treated sows was about 5% higher than that recorded from untreated animals. Clearly increased litter sizes which, however, were associated with lower piglet birth weights were recorded from farrowing gilts and adult sows, following PMSG treatment. The conclusion is drawn that PMSG treatment, via luteotrophic action of luteinising hormone, is capable of stabilising pregnancy-related corpora lutei, resulting in higher litter sizes. Further studies will be necessary, and emphasis will have to be laid on the problem of weight development of newborn piglets, following litter-size boosting treatment. 相似文献