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利用波尔山羊与关中奶山羊进行级进杂交。分别对波奶F1、F2、F3、F4羔羊不同阶段的体型外貌、体重、体尺、适应性及经济效益等指标进行观测。统计结果表明：在当地饲养管理条件下，各杂交后代的生长发育性能均优于关中奶山羊，差异显著（P〈0．05）；经济效益明显增加。因此，推广波奶杂交改良羊，对增加农民收入，推动农村经济发展意义重大。 相似文献
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为研究酵母培养物对奶山羊干物质采食量、产奶量、奶品质和经济效益的影响,试验选择年龄（2.5岁）相近、胎次（2胎）相同、泌乳期（55 ~ 60 d）的健康关中奶山羊40只,随机分成2组,每组20只羊。对照组不添加酵母培养物,试验组在全混合日粮（TMR）中添加20 g/只的酵母培养物。试验期60 d。结果表明：（1）试验组日平均产奶量、干物质采食量、奶料比均显著高于对照组（P ＜ 0.05）|（2）试验组奶山羊乳蛋白、乳脂肪和非脂固形物含量均显著高于对照组（P ＜ 0.05）|（3）试验组奶山羊平均产奶量提高0.48 kg/d,每只羊经济效益增加 2.44 元/d。综上所述,在关中奶山羊TMR中添加酵母培养物,能够提高其采食量和产奶量,改善奶品质,提高奶料比,提高养殖经济效益。
[关键词] 酵母培养物|奶山羊|干物质采食量|产奶量 相似文献
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布尔山羊改良关中奶山羊生长发育效果观察 总被引：1，自引：0，他引：1
布尔山羊改良关中奶山羊生长发育效果，测定结果表明：杂交一代（F1）生长发育速度比关中奶山羊明显提高，尤其是在6月龄前的生长速度提高特别明显，杂交一代公羊6月龄日增重达140.8g，母羊达139.6g；而关中奶山羊公羊6月龄日增重为106.0g，母羊为88.4g。 相似文献
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近几年来,各地采取一系列有效措施,促进了山羊大发展,为振兴农村经济,农民增收起着一定作用。阜阳白山羊是优良的地方良种,具有耐粗饲、适应性强、繁殖率高、板皮好等优点。10年来,先后引进关中奶山羊、睢宁白山羊、波尔山羊等国内外良种改良阜阳白山羊,收到一定效果。但阜阳白山羊在多品种杂交影响下,纯种白山羊基本全无。杂交后代羊繁殖率降低,要求饲养条件高,当不能满足时,杂交优势不明显,某些方面不及阜阳白山羊。经观察,目前山羊血液成分,主要由波尔山羊、奶山羊、阜阳白山羊等组成。如今阜阳农村山羊外貌特征为波杂、奶杂及波奶杂,农… 相似文献
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为了解决湘西自治州本地武雪山羊品种个体小、生长慢与效益低的问题,找到一个适合当地气候条件、饲养环境的杂交改良最佳组合,采用5只波尔山羊、2只萨能奶山羊、113只南江黄羊,随机分成三组,进行了12个月的试验,试验1、2、3组分别为波南、奶南、南南。结果表明,波南组和奶南组F1代羊的显性杂交优势比较明显,在繁殖率、体型、增重、产肉率方面有较显著的改良效果。 相似文献
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利用PCR-SSCP和PCR-RFLP技术对708只西农萨能(268)和关中奶山羊群体(440)的CSN1S2基因的多态性及其与经济性状的相关性进行了研究.结果表明.在西农萨能和关中奶山羊群体中,仅发现CSN1S3基因存在A和F等位基因,其频率分别为0.79/0.21和0.74/0.26.关联分析发现,F等位基因与奶山羊的体尺性状(体高、体长、胸围)和第1、2胎的产奶量无显著相关,F等位基因与乳中的脂肪含量和总乳固体含量成正相关(P＜0.05),而与其他的奶成分、pH值、乳密度无显著性相关. 相似文献
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布尔山羊与关中奶山羊杂交改良效果分析 总被引：5，自引：0，他引：5
布尔山羊与关中奶山羊杂交一代羔羊的外貌体型近似母本,体尺、体重、适应性等趋向父本。杂交一代羔羊的初生重（3.5kg）与关中奶山羊的初生重（2.9kg)差异极显著,杂交一代羔羊1月龄体重（7.8kg)与关中奶山羊1月龄体重（6.6kg）差异不显著;2月龄体重和3月龄体重分别高出关中奶山羊2.6kg和3.2kg,差异极显著,杂交一代羔羊2月龄日增重（136.7g）与关中奶山羊2月龄日增重（90.5g)差异极显著,杂交一代羊平均屠宰率为43.76%,净肉率为33.36%,分别高于关中奶山羊9.57%和7.26%。 相似文献
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为了解决湘西自治州本地武雪山羊品种个体小、生长慢与效益低的问题，找到一个适合当地气候条件、饲养环境的杂交改良最佳组合，采用5只波尔山羊、2只萨能奶山羊、113只南江黄羊，随机分成三组，进行了12个月的试验，试验1、2、3组分别为波南、奶南、南南。结果表明，波南组和奶南组F1代羊的显性杂交优势比较明显，在繁殖率、体型、增重、产肉率方面有较显著的改良效果。 相似文献
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Values for total serum proteins and relative percentages of albumin, alpha 1-globulin, alpha 2-globulin, beta-globulin, and gamma-globulin were determined for the goat. These normal values were compared with those obtained for goats infected with Corynebacterium pseudotuberculosis. Goats chronically infected with C pseudotuberculosis show significantly higher total serum protein values than normal goats, apparently due to increased gamma-globulins. This higher protein value is also associated with a decrease in serum alpha 2- and beta-globulins. 相似文献
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选择年龄、体重相近、健康无病的本地母羊33只,通过同步发情处理,采取纯种波尔山羊精液进行人工鲜配,产健康羊22只,杂种羊初生重平均为3.20千克,比本地山羊初生重1.53千克,提高了109.3%,差异极显著(p<0.01)。饲养试验表明杂种羊1～6月龄的平均日增重为191.39克,比本地羊76.94克,提高了148.75%,差异极显著(p<0.01)。说明用波尔山羊改良本地山羊是可行的,能产生更大的经济效益,具有较高的推广价值。 相似文献
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Mycoplasma infections of goats 总被引：1，自引：0，他引：1
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Individual antigens of goats 总被引：1，自引：0，他引：1
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波尔山羊与宜昌白山羊杂交试验初报 总被引：2，自引：0，他引：2
用波尔山羊冻精输配宜昌白山羊，发校后代体型外貌趋匀本，耳宽大崦下垂。毛白带棕红色斑块肌肉丰满，杂交优势明显，波宜杂交一代羔羊初生重和２月龄体重分别为２．５７ｋｇ和１１．７６ｋｇ，比宜昌白山羊提高６７．８％和８６．７％，建议在全省大力推广应用。 相似文献
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Six cases of intersex goats were investigated. Five of these animals had testicular tissues (testes) situated prepubically inside a skin pouch. The testicular tissues of the sixth goat were attached to the sides of the urinary bladder. All of the four animals that were studied by radiography, surgical exploration and/or pathology had uterine tubular structures but no ovarian tissues were found in them. Thus at least four of these goats were male pseudohermaphrodites. 相似文献
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Gufler H Bagó Z Speckbacher G Baumgartner W 《DTW. Deutsche tier?rztliche Wochenschrift》1999,106(10):419-424
Death, abortion, decreased milk yield and emaciation in dairy goats occurred due to calcinosis in a goat operation on 1100 meter sea level in Tyrol. This could be diagnosed by the clinical, sonographical and pathomorphological investigation. In the basic fodder yellow oat grass proportion was present with 40%. Clinically the apathic goats showed reduced appetite, emaciation, dyspnea, anaemic mucous membranes, heart noises and less activity to move. The blood-chemical examination of one goat revealed an increased activity of AP (199 U/l), calcium and phosphor-concentrations were in normal range. Sonographically liquidothorax and -perikard, calcified pulmonary and aortic valves and a thickened aortic orifice as well as calcification of kidneys, enlargment of liver and ascites could be diagnosed in this goat. The sonographical findings were confirmed by pathomorphological examination. 相似文献
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M C Smith 《Journal of the American Veterinary Medical Association》1979,174(12):1328-1332
Of six goats with polioencephalomalacia, three responded to thiamin therapy, whereas three died 2 to 7 days after onset of signs. The goats were 2 months to 2 1/2 years old. They were affected during the winter or early spring, and concentrate feeding was a prominent part of the history. Transketolase activity values were obtained from two affected goats and from nine controls. The affected goats had lower transketolase activity than any of the controls. 相似文献