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1.
2004年3月份对18只波尔山羊用炔诺酮阴道栓-FSH-氯前列烯醇法进行超数排卵处理,超排后发情18只(100%),平均采胚数16.22±8.42枚,平均可用胚数15.00±8.25枚.对212只甘肃天水本地山羊用炔诺酮阴道栓-FSH-氯前列烯醇法进行同期发情处理,同期发情率98.58%(209/212).对159只受体进行手术,可移植受体比例为91.82%(146/159).移植受体妊娠率为63.7%(93/146),其中妊娠中后期流产7只,妊娠到期86只,共产羔117只. 相似文献
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布尔山羊超数排卵胚胎移植试验 总被引：2，自引：0，他引：2
本试验采用置入炔诺酮阴道栓 FSH 氯前列烯醇同期发情、超数排卵处理方法，对8只布尔山羊(供体羊)、90只洪洞奶山羊(受体羊)进行了同期发情和超排数排卵胚胎移植试验。其结果如下：(1)8只供体羊回收胚胎数量、可用胚胎数量、羊均回收胚胎数量、羊均可用胚胎数量、可用胚比率分别为182枚、172枚、22．8枚、21．5枚、94．5％；(2)90只受体羊共有81只羊达到同期发情效果，发情同期率为90．0％；(3)150枚可用胚胎共移植洪洞奶山羊73只，妊娠51只，产羔80只，妊娠率69．9％，胚胎成羔率53．5％。 相似文献
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1999年10～11月份,分3批使用阴道栓+FSH超数排卵供体布尔山羊13只.在放入阴道栓的第8～10 d,连续3d递减量肌肉注射FSH(澳大利亚)320 mg.9只供体羊发情、配种、采胚(有效率69.23%).平均采胚数18.11±5.18枚,其中可用胚平均数15.44±6.31枚(可用胚率85.28%).将139枚7日龄可用胚移植受体关中奶山羊89只,妊娠50只,妊娠率56.18%.其中鲜胚移植妊娠率61.11%(44/72),冻胚移植妊娠率41.67%(5/12),二分割胚移妊娠率20%(1/5).50只妊娠受体羊共产羔68只,每只供体羊平均获羔羊7.56只.供体羊采胚后,平均39.9 d发情,配种,全部妊娠产羔,产羔率200%.胚胎移植羔羊性别、初生重、发病率和布尔山羊自繁羔羊无显著差异,P＞O.05.本次布尔山羊移植产生明显的经济效益,技术成熟,可推广应用,逐步产业化. 相似文献
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为了比较十八甲基炔诺酮(NG)和左旋十八甲基炔诺酮(LNG)对奶山羊同期发情效果,为奶山羊养殖场选择合适的孕激素阴道海绵栓进行奶山羊的同期发情处理提供基础研究资料。将108只健康奶山羊随机分为三组,每组3个重复,每重复12只羊;3个试验组羊分别采用氯前列烯醇(PG,0.1 mg/只)+不同类型和剂量十八甲基炔诺酮阴道海绵栓+50单位促卵泡素(FSH)进行同期发情处理,其中试验1组采用NG 60 mg/枚的阴道海绵栓,试验2组采用LNG30 mg/枚的阴道海绵栓,试验3组采用LNG 40 mg/枚的阴道海绵栓。结果表明,三组羊96 h发情同期率分别为86.11%、94.44%和88.89%,各组间差异不显著(P0.05);72 h的发情同期率分别为80.53%、94.44%和88.89%,第2组显著高于第1组(P0.05),但与第3组差异不显著(P0.05);从处理结束到发情开始的平均间隔时间分别为45.29 h±18.99、48.35 h±13.02和42.38 h±12.19;发情持续时间分别为30.19 h±11.95、30.71 h±8.11和29.63 h±8.41,均无显著差异。综合分析表明,LNG对奶山羊发情同期效果优于NG,且30 mg LNG的效果比40 mg LNG效果好,建议在制作羊用阴道海绵栓时选择LNG,并采用30 mg LNG/枚的剂量。 相似文献
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波尔山羊胚胎移植应用研究报告 总被引：2，自引：0，他引：2
2002年10～11月,分4批使用阴道栓 FSH对36只供体波尔山羊进行超数排卵处理.在放人阴道栓的第12～15d,连续4d递减量早晚肌注FSH.34只供体羊发情、配种、采胚(反应率94.44%,34/36),平均采胚18.03枚(613/34),其中可用胚平均15.65枚(532/34),可用胚率86.79%(532/613),将532枚7日龄可用胚移植给277只受体关中奶山羊,妊娠217只,妊娠率78.34%.妊娠受体羊共产羔257只,每只供体平均获羔羊7.56只,供体羊采胚后,平均45 d发情配种,有34只妊娠,产羔65只,平均产羔1.91只.胚胎移植羔羊性别、初生重、发病率和波尔山羊自繁羔羊无显著差异(P＞0.05).本次波尔山羊胚胎移植产生明显的经济效益,技术成熟,可推广应用. 相似文献
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用进口阴道海绵栓、进口孕酮阴道栓、同产前列腺素-氯前列烯醇对受体山羊进行同期发情处理。结果，3种药物的处理效果都比较好，差异不显著。选择不同营养状况的受体羊，用同一种药物处理，结果，营养状况良好的受体羊同期发情效果最好，同期发情率、移植率、妊娠率分别达到100%、86.7%、75.0%。选择西农萨能奶山羊、唐山奶山羊、苏北白羊用同一种经药物处理，结果表明，品种对受体羊同期发情效果影响不大。在不同季节用同一种药物处理受体羊，4、6月份同期发情效果影响明显比11月份差，11月份处理的受体羊同期发情率、移植率、妊娠率分别达93.5%、70.9%、58.0%。 相似文献
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氯前列烯醇为我国新合成的高效畜用前列腺素F2α类似物 ,具有用量小、生物活性强、价格低等特点 ,对黄牛的功能性黄体 ,妊娠黄体 ,持久黄体等具有明显的溶解作用 ,调节黄牛的同期发情。注射氯前列烯醇到母牛发情平均间隔时间为 5 0 .5± 7.0h ,处理后周期发情的受体牛 ,冻胚移植成功率为 38.8% ,可代替 15甲基PGF2α使用。 相似文献
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布尔山羊不同季节超排效果比较研究 总被引：2，自引：0，他引：2
2002年秋季和2003年春季在山西太谷采用置入炔诺酮阴道栓+FSH+氯前列烯醇超数排卵处理方法,对12只布尔山羊进行了超数排卵处理。结果表明;布尔山羊春天夏初非繁殖季节、秋季繁殖季节的超排效果即供体羊平均回收胚胎数量、羊均可用胚胎数量、超排有效率、可用胚比率分别为20.5枚、18.3枚、100.0%、89.0%和22.8%枚、21.5枚、100.0%、94.5%,春末夏初超排效果虽稍低于秋季,但春、秋两季并无显著差异(p>0.05)。 相似文献
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试验选用96头平均体重14.82 kg左右的杜×长×大断奶仔猪,随机分成4组,每组3栏,每栏8头(公母各半)。对照组饲喂基础日粮,试验1、2、3组分别添加1%80目白术、0.2%白术多糖和1%微米白术。试验期30 d。结果表明:在生长性能方面,与对照组相比,1%微米白术添加组可显著提高日增重(P0.05)、降低饲料增重比和腹泻率,而且效果优于1%80目白术组和0.2%白术多糖组,在肠道形态和肠道微生态区系方面,与对照组相比,日粮添加1%80目白术、0.2%白术多糖、1%微米白术均可不同程度的提高十二指肠和空肠的绒毛高度,加深十二指肠和空肠的隐窝深度,并且增加肠道微生态区系的多样性,其中以1%微米白术添加组的效果最佳。 相似文献
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Sissay, M.M., Uggla, A. and Waller, P.J., XXXX. Prevalence and seasonal incidence of nematode parasites and fluke infections
of sheep and goats in eastern Ethiopia. Tropical Animal Health and Production, XXXX. A 2-year abattoir survey was carried out to determine the prevalence, abundance and seasonal incidence of gastro-intestinal
(GI) nematodes and trematodes (flukes) of sheep and goats in the semi-arid zone of eastern Ethiopia. During May 2003 to April
2005, viscera including liver, lungs and GI tracts were collected from 655 sheep and 632 goats slaughtered at 4 abattoirs
located in the towns of Haramaya, Harar, Dire Dawa and Jijiga in eastern Ethiopia. All animals were raised in the farming
areas located within the community boundaries for each town. Collected materials were transported within 24 h to the parasitology
laboratory of Haramaya University for immediate processing. Thirteen species belonging to 9 genera of GI nematodes (Haemonchus contortus, Trichostrongylus axei, T. colubriformis, T. vitrinus, Nematodirus filicollis, N. spathiger, Oesophagostomum
columbianum, O. venulosum, Strongyloides papillosus, Bunostomum trigonocephalum, Trichuris ovis, Cooperia curticei and Chabertia ovina), and 4 species belonging to 3 genera of trematodes (Fasciola hepatica, F. gigantica, Paramphistomum {Calicohoron} microbothrium and Dicrocoelium dendriticum) were recorded in both sheep and goats. All animals in this investigation were infected with multiple species to varying
degrees. The mean burdens of adult nematodes were generally moderate in both sheep and goats and showed patterns of seasonal
abundance that corresponded with the bi-modal annual rainfall pattern, with highest burdens around the middle of the rainy
season. In both sheep and goats there were significant differences in the mean worm burdens and abundance of the different
nematode species between the four geographic locations, with worm burdens in the Haramaya and Harar areas greater than those
observed in the Dire Dawa and Jijiga locations. Similar seasonal variations were also observed in the prevalence of flukes.
But there were no significant differences in the prevalence of each fluke species between the four locations. Overall, the
results showed that Haemonchus, Trichostrongylus, Nematodirus, Oesophagostomum, Fasciola and Paramphistomum species were the most abundant helminth parasites of sheep and goats in eastern Ethiopia. 相似文献
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Tropical Animal Health and Production - 相似文献
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Rassnick KM Gieger TL Williams LE Ruslander DM Northrup NC Kristal O Myers NC Moore AS 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2001,15(3):196-199
1-(2-Chloroethyl)3-cyclohexyl-1-nitrosourea (CCNU) is an alkylating agent in the nitrosourea subclass. A prospective evaluation of CCNU was done to determine the maximally tolerated dosage of CCNU in tumor-bearing cats. Response data were obtained when available. Twenty-five cats were treated with CCNU at a dosage of 50-60 mg/m3 body surface area. Complete hematologic data were available for 13 cats. Neutropenia was the acute dose-limiting toxicity. The median neutrophil count at the nadir was 1,000 cells/microL (mean, 2,433 cells/microL; range, 0-9,694 cells/microL). The time of neutrophil nadir was variable, occurring 7-28 days after treatment, and counts sometimes did not return to normal for up to 14 days after the nadir. Based on these findings, a 6-week dosing interval and weekly hematologic monitoring after the 1st treatment with CCNU are recommended. The nadir of the platelet count may occur 14-21 days after treatment. The median platelet count at the nadir was 43,500 cells/microL. No gastrointestinal, renal, or hepatic toxicities were observed after a single CCNU treatment, and additional studies to evaluate the potential for cumulative toxicity should be performed. Five cats with lymphoma and 1 cat with mast cell tumor had measurable responses to CCNU. Phase II studies to evaluate antitumor activity should be completed with a dosing regimen of 50-60 mg/m3 every 6 weeks. 相似文献
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H Hayashi T Yoshimura J Y Chen 《Comparative immunology, microbiology and infectious diseases》1985,8(2):73-87
Our particular attention in this article was given to natural mediators for macrophages isolated from the sites of tissue injury. A number of chemotactic factors, which may satisfy many criteria making them acceptable as inflammatory leucocyte chemotactic factors, has been separated. Among them, our laboratory has isolated three macrophage (monocyte) chemotactic factors (MCF-a, -b and -c). Their purification, characterization and functional specificity are discussed. 相似文献
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Davis MS Willard MD Nelson SL Mandsager RE McKiernan BS Mansell JK Lehenbauer TW 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(3):311-314
Human and equine athletes are reported to have a high prevalence of gastric disease, and anecdotal evidence suggests a similar phenomenon applies to racing sled dogs. To investigate the prevalence of gastric disease in racing sled dogs, we conducted 2 gastroscopy studies on dogs competing in the annual Iditarod Sled Dog Race. A pilot study of dogs that were either dropped from the 2000 Iditarod Sled Dog Race because of illness or that finished the race indicated that, approximately 5 days after competing, 10 of 28 dogs (35%) had endoscopic evidence of gastric ulceration, erosion, or hemorrhage. The next year, an endoscopic study of 73 dogs participating in the 2001 Iditarod race was performed in order to evaluate a larger population of dogs. Data from 70 of these dogs could be used; 34 (48.5%) had ulceration, erosion, gastric hemorrhage, or some combination of these findings. When this group of 70 dogs was compared retrospectively to a control group of 87 dogs presented to the Texas A&M University (TAMU) Veterinary Medical Teaching Hospital, the Iditarod sled dogs had a significantly higher prevalence (P = .049) of gastric lesions. These findings suggest that, similar to athletes of other species, elite canine athletes have an increased prevalence of gastric disease compared to the canine population at large. 相似文献
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Furosemide continuous rate infusion in the horse: evaluation of enhanced efficacy and reduced side effects 总被引：1，自引：0，他引：1
Johansson AM Gardner SY Levine JF Papich MG LaFevers DH Fuquay LR Reagan VH Atkins CE 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(6):887-895
Continuous rate infusion (CRI) of furosemide in humans is considered superior to intermittent administration (IA). This study examined whether furosemide CRI, compared with IA, would increase diuretic efficacy with decreased fluid and electrolyte fluctuations and activation of the renin-angiotensin-aldosterone system (RAAS) in the horse. Five mares were used in a crossover-design study. During a 24-hour period, each horse received a total of 3 mg/kg furosemide by either CRI (0.12 mg/kg/h preceded by a loading dose of 0.12 mg/kg IV) or IA (1 mg/kg IV q8h). There was not a statistically significant difference in urine volume over 24 hours between methods; however, urine volume was significantly greater after CRI compared with IA during the first 8 hours ([median 25th percentile, 75th percentile]: 9.6 L [8.9, 14.4] for CRI versus 5.9 L [5.3, 6.0] for IA). CRI produced a more uniform urine flow, decreased fluctuations in plasma volume, and suppressed renal concentrating ability throughout the infusion period. Potassium, Ca, and Cl excretion was greater during CRI than IA (1,133 mmol [1.110, 1,229] versus 764 mmol [709, 904], 102.7 mmol [96.0, 117.2] versus 73.3 mmol [65.0, 73.5], and 1,776 mmol [1,657, 2.378] versus 1,596 mmol [1,457, 1,767], respectively). Elimination half-lives of furosemide were 1.35 and 0.47 hours for CRI and IA, respectively. The area under the excretion rate curve was 1,285.7 and 184.2 mL x mg/mL for CRI and IA, respectively. Furosemide CRI (0.12 mg/kg/h) for 8 hours, preceded by a loading dose (0.12 mg/kg), is recommended when profound diuresis is needed acutely in horses. 相似文献
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B. Cinar Kul N. Bilgen J.A. Lenstra O. Korkmaz Agaoglu B. Akyuz O. Ertugrul 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2015,132(6):449-453
Genetic variations in chromosome Y are enabling researchers to identify paternal lineages, which are informative for introgressions and migrations. In this study, the male‐specific region markers, sex‐determining region‐Y (SRY), amelogenin (AMELY) and zinc finger (ZFY) were analysed in seven Turkish native goat breeds, Angora, Kilis, Hair, Honaml?, Norduz, Gürcü and Abaza. A SNP in the ZFY gene defined a new haplotype Y2C. All domestic haplogroups originate from Capra aegagrus, while the finding of Y1A, Y1B, Y2A and Y2C in 32, 4, 126 and 2 Turkish domestic goats, respectively, appears to indicate a predomestic origin of the major haplotypes. The occurrence of four haplotypes in the Hair goat and, in contrast, a frequency of 96% of Y1A in the Kilis breed illustrate that Y‐chromosomal variants have a more breed‐dependent distribution than mitochondrial or autosomal DNA. This probably reflects male founder effects, but a role in adaptation cannot be excluded. 相似文献
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Ling GV Thurmond MC Choi YK Franti CE Ruby AL Johnson DL 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(6):817-823
The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically. CaOx or Struvite or both were contained in 18,966 of 20,884 (91%) specimens. For both sexes, a 20-year statistically significant increase was observed in the proportion of calculus specimens that contained CaOx. The increase in this proportion was greater in females (1% to 31%) than in males (18% to 82%). From 1998 to 2001, when proportions may have plateaued, the odds of specimens containing CaOx were markedly higher in 18 breeds, markedly lower in 5 breeds, and not significantly different in 13 breeds compared with crossbreds. For both sexes, a 20-year statistically significant decrease was observed in the proportion of calculus specimens that contained struvite. This decrease in proportion was greater for males (79-16%) than for females (97-68%). From 1998 to 2001, when proportions plateaued, the odds of calculi containing struvite were markedly lower in 20 breeds, markedly higher in 1 breed, and not significantly different in 15 breeds when compared with crossbreds. Breed, age, and sex were associated statistically with CaOx or struvite urolithiasis. In conclusion, there appears to have been a long-term increase in the proportion of specimens of canine urinary calculi that contain CaOx as well as a long-term decrease in the proportion of specimens of calculi that contain struvite for both male and female dogs. The rate of change appeared to begin leveling off in the period 1998 to 2001. The recent proportion of dogs with either CaOx- or struvite-associated urolithiasis may depend on breed, age, and sex, and on interactions among these 3 factors. 相似文献
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<正>1.INTRODUCTION Ensuring transportation network security is one Of the most daunting challenges confronting homeland security agencies today.Significant research has been dedicated.To model and analyze the vulnerability of transportation systems,while notably fewer studies propose specific strategies for deploying defensive technologies to safeguard these systems. 相似文献