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1.
《中国草食动物科学》2016,(2)
为探讨贵州白山羊生长发育规律,选择同期出生、体重相近的羔羊,在自然放牧条件下进行全程跟踪测定分析。结果表明:贵州白山羊公羔初生重1.75 kg±0.15 kg、母羔1.72 kg±0.11 kg;成年公羊体重37.46 kg±2.97 kg、体高56.43 cm±3.06 cm、体长61.19 cm±4.01 cm、胸围70.85 cm±3.82 cm,成年母羊体重34.13 kg±2.45 kg、体高54.36 cm±3.15 cm、体长59.48 cm±4.80 cm、胸围72.12 cm±3.21 cm;9月龄公羊体重23.29 kg±1.21 kg、体高48.46 cm±2.79 cm、体长51.14 cm±3.14 cm、胸围59.04 cm±3.36 cm,分别达到成年公羊的62.17%、85.88%、83.58%和83.33%;9月龄母羊体重21.24 kg±1.71 kg、体高47.64 cm±2.81 cm、体长50.09 cm±2.96 cm、胸围61.69 cm±3.07 cm,分别达到成年母羊的62.23%、87.64%、84.21%和85.54%。说明贵州白山羊公、母羊均应选择9月龄为适宜配种繁殖年龄。 相似文献
2.
辽育白牛与5品种(杂种)肉牛屠宰性能对比试验报告 总被引：2，自引：2，他引：0
为了测试辽育白牛的屠宰性能,并与辽宁地区其他主要品种(杂种)肉牛进行比较,辽宁省牛育种中心开展了屠宰试验。试验测得辽育白牛的主要屠宰性能指标为:育肥12个月、育肥16个月时屠宰,宰前活重分别为(561.8±82.1)kg和(664.8±30.5)kg;胴体重分别为(328.9±41.6)kg和(396±20.7)kg;净肉重分别为(278.05±36.7)kg和(339.2±21.9)kg;优质切块重分别为(180.8±23.6)kg和(215.7±15.6)kg;高档牛肉重分别为(50.2±7.4)kg和(58.1±6.7)kg;屠宰率分别为58.6%±1.7%和59.6%±1.4%;胴体产肉率分别为84.5%±1.2%和85.6%±1.4%;净肉率分别为49.5%±1.1%和50.9%±1.8%,优质肉率分别为65.4%±1.4%和63.6%±1.3%;眼肌面积分别为(78±11.2)cm2和(96.4±8.8)cm2;背膘厚分别为(0.65±0.2)cm和(0.73±0.3)cm。结果表明,和其他品种(杂种)肉牛相比,辽育白牛具有较高的屠宰性能指标,并且遗传性能稳定,具备较高的种用价值。 相似文献
3.
《现代畜牧兽医》2017,(3)
经测定鲁西黑头羊3月龄断奶体重公羔32.58±3.21 kg,母羔30.78±3.03 kg。6月龄公羊体重49.39±4.58 kg,母羊45.60±4.39 kg,分别达到成年体重的48.05%、59.39%。周岁公羊体重87.26±5.42 kg,母羊65.12±6.46kg,分别达到成年体重的84.90%和84.81%。成年公羊体重102.78±9.50 kg,母羊体重76.78±7.39 kg。周岁公羊体高、体长、胸围和管围分别达到成年羊体尺的88.24%、93.92%、92.92%和91.59%;周岁母羊分别达到成年体尺的95.47%、95.04%、91.99%和96.23%。成年公羊体高83.87±7.48 cm,体长98.68±4.57 cm;成年母羊体高70.41±4.41cm,体长88.49±5.38 cm。整体分析,出生至六月龄体重呈直线上升趋势,公羊生长趋势强于母羊,8月龄后体重生长速度减缓;各项体尺生长发育成熟顺序,公羊依次为胸围、体长、体高;母羊依次为体高、体长、胸围。 相似文献
4.
沿河山羊冬季放牧习性和舍饲行为规律观测研究 总被引：1，自引：0，他引：1
通过对沿河山羊放牧习性观察发现,在全天10h的放牧活动中,游走88.74min±5.51min,采食327.33min±25.16min,站立69.40min±4.73min,躺卧41.52min±4.07min,反刍37.62min±2.93min,彷徨30.53min±3.58min,排泄2.05min±0.27min,饮水2.81min±1.07min,分别占放牧活动时间的14.79%、54.56%、11.57%、6.92%、6.27%、5.09%、0.34%和0.47%。对沿河山羊舍饲行为观测,结果表明在昼夜24小时内,采食387.21min±27.09min,反刍456.91min±25.77min,站立138.75min±16.41min,卧息(含睡眠)368.76min±19.35min,走动80.74min±15.21min,排泄3.73min±0.35min,饮水3.90min±0.57min,分别占昼夜活动时间的26.89%、31.73%、9.64%、25.61%、5.61%、0.92%和0.27%,采食、站立、走动时间白昼极显著多于夜间(P<0.01),而反刍、卧息时间则夜间极显著多于白昼(P<0.01),R∶G值为1.18。在放牧条件,用计数法估测得山羊每只日均采食青草量2.60kg±0.35kg,折合风干物0.65kg±0.06kg,分别占山羊体重的8.24%和2.06%;在满足饲草供应的情况下,舍饲山羊每只日均有效采食鲜草量为4.46kg±0.52kg,折合风干物质1.12kg±0.13kg,分别占山羊体重的14.14%和3.55%。 相似文献
5.
"奶牛蹄健浴液"配合中药治疗奶牛腐蹄病效果的观察 总被引：1，自引：0，他引：1
2003～2005年在宁夏某奶牛场曾发生多次腐蹄病病例,严重影响奶牛的生产性能,用一般治疗方法治愈率甚微.通过"奶牛蹄健浴液"配合中药疗法效果显著.平均每月治愈率由2003年的40.49%±2.12%上升为2004年的65.26%±2.11%和2005年的78.03%±1.04%.平均每月死淘率由2003年的15.12%±2.36%下降为2004年的13.11%±1.88%和2005年的3.17%±0.51%.平均每月奶量日单产每头从2003年的21.33 kg±2.45 kg、2004年的25.65 kg±1.98 kg上升为2005年的27.36 kg±1.77 kg.这表明用"奶牛蹄健浴液"配合中药疗法效果显著,可以推广应用. 相似文献
6.
笔者对惠安县戴云山羊繁殖性能进行了调查,结果表明,母羊产单羔的占14.56%、双羔的占59.7%、三羔的占22.39%、四羔的占3.35%;公羔平均初生重0.90±0.09kg,母羔平均初生重0.8±0.07kg;公羔断乳重平均10.63±1.17kg,母羔断乳重平均9.80±0.89kg。 相似文献
7.
贵州宗地花猪最佳屠宰体重的研究 总被引：3，自引：1，他引：2
将36头宗地花猪进行集中饲养育肥,并在65～75kg、75～85kg、85～95kg、95～105kg阶段分别选择3头,共12头进行屠宰测定和肉质测定,研究其胴体品质及肉质随体重的变化规律。试验结果表明:在75～85kg体重阶段育肥猪的屠宰率较高(76.24%±1.87%),瘦肉率较高(40.07%±0.68%),脂肪率较低(33.45%±4.43%),背膘较薄(3.72cm±0.23cm),肉色、大理石纹评分分布正常,肌肉保水能力强、失水率最低(14.10%±1.16%),熟肉率高(62.81%±0.86%),肉嫩。综合分析认为,宗地花猪以75～85kg作为上市屠宰体重最为合适。 相似文献
8.
本研究分析了全日制放牧条件下不同补饲水平和育肥时间对BMY牛生产性能的影响。结果表明:在精料饲喂总量相同的条件下,12、18、24月龄平均体重和日增重分别为:376.3±21.84kg、479.0±31.43kg和604.0±30.53kg及901.09±149.02g、732.88±68.00g和753.92±35.18g,分别比对照组提高40.7%、39.8%和50%及191.6%、102.3%和105%;冬春季日饲喂量1.0kg、2.0kg、3.0kg和4.0kg精料补充料及0.5kg浓缩料,ADG分别为:644g、765g、901g和1154g及591g。BMY牛生长速度快,产肉性能好,平均屠宰率和净肉率为59.56%和49.62%,牛肉质量评定均达优质牛肉标准,具有生产高档牛肉的潜力。 相似文献
9.
以引进的黑头、白头杜泊羊及其繁殖后代为对象,跟踪观测比较两者的生长与繁殖特性,结果表明在同样饲养管理条件下,黑头、白头杜泊母羊产双羔率分别是15.2%与6.4%(P>0.05);黑头、白头杜泊羔羊平均初生重依次为4.19kg±0.93kg、4.01kg±0.71kg(P>0.05);1月龄体重分别为13.33kg±2.77kg、13.94kg±4.19kg(P>0.05);2月龄体重分别为23.45kg±3.46kg、21.71kg±5.18kg(P>0.05);3月龄体重分别为30.57kg±5.35kg、28.84kg±7.15kg(P>0.05)。结果提示,黑头与白头杜泊羊生长与繁殖性能没有显著差异。 相似文献
10.
《中国草食动物科学》2016,(3)
以努比亚山羊为父本,隆林山羊为母本,采用开放式核心群选育法开展杂交选育,选育的黑山羊新品系外貌与体形均有明显的改进,繁殖性能、肉用特征明显提高。初生羔羊体重达2.67 kg±0.56 kg,3月龄公羔体重17.80 kg±1.23 kg,母羔15.86 kg±2.30 kg;周岁公羊体重42.70 kg±3.55 kg,母羊35.60 kg±3.06 kg;成年公羊体高71.42 cm±4.80 cm,母羊69.85 cm±4.32 cm;经产母羊产羔率200.83%,成年公羊屠宰率(53.61±1.58)%,成年母羊屠宰率(48.98±1.75)%。 相似文献
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12.
Ovine scrapie was first recorded in Cyprus in 1985. Subsequently four dairy goats kept in two mixed flocks with affected sheep developed characteristic clinical signs similar to those seen in sheep. Fifteen goats from the two flocks were examined histologically and neurological lesions consistent with a diagnosis of scrapie were found in the four animals and in three others which had subsequently developed early neurological signs. These lesions were similar to those of naturally-affected sheep although neuronal degeneration and vacuolation were more severe in some cases. 相似文献
13.
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(10):323-327
In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal.
Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection.
相似文献14.
15.
Owen J Slocombe D McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(9):324-328
In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%).
Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada.
相似文献16.
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(6):504-508
In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%). 相似文献
17.
In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated.
Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively.
相似文献18.
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(8):641-646
In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%). 相似文献
19.
Owen J Slocombe D McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(8):491-495
In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%).
Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada.
相似文献20.