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1.
为了提升青海省藏羊冷季的营养供给,降低掉膘发生的几率,为当地创造更多的经济效益,青海省相关部门积极进行了藏羊冷季精料补饲,以下对青海省藏羊冷季精料补饲试验研究和研究结果进行了详细分析,希望对当地畜牧业的健康发展起到促进作用。 相似文献
2.
两个月的试验结果表明,补饲精料对减少牦牛冷季掉膘有明显作用。8月龄牦牛补饲精料试验组比对照组少减重2.81kg,两者之间存在极显著差异(P<0.01)。20月龄补饲精料牦牛试验组比对照组少重2.19kg,两者之间存在极显著差异(P<0.01)。通过计算投产比得出,补饲精料是增加三江源区牦牛冷季营养供给,减少掉膘,提高生产效率的有效途径。 相似文献
3.
为了提高藏羊的生长水平,在寒冷季节应该做好藏羊的补饲工作,对藏羊补饲时间、补饲的饲料用量等进行控制,提高藏羊在冷季的生长水平。笔者通过试验,对冷季藏羊的补饲效果进行分析。 相似文献
4.
文章旨在研究冷季饲养模式对藏羊经济效益的影响,明确两者关联性。试验选取100只体重相近的藏羊为研究对象,基于体重情况平分为4组,第1组采用全期自然放牧模式;第2组在自然放牧基础上给每只羊每天投喂0.1 kg精料补充料;第3组采用全舍饲条件饲养模式,每天给每只羊投喂燕麦青贮2 kg、草颗粒0.5 kg;第4组在全舍饲条件下,每天给每只羊投喂玉米秸秆青贮1.5 kg、精料0.5 kg。对4组藏羊体重及体尺进行测定,并对4种模式下经济效益进行统计、比较。结果表明:从经济效益来看,传统放牧养殖模式最低,舍饲条件下给予藏羊精料补饲模式效益最高。综上所述,冷季饲养模式会给藏羊经济效益带来直接影响,其中舍饲条件下给予藏羊精料补饲模式能有效提升藏羊冷季饲养经济效益。 相似文献
5.
为了减少天祝高寒牧区藏羊冷季掉膘损失,本试验于2013年12月1日-2014年5月15日在天祝县抓喜秀龙乡高寒牧区开展藏羊补饲燕麦秸秆青贮料和精料试验,分析了藏羊增重和经济效益的影响。结果表明,放牧+精料+青贮饲料试验组比放牧+精料对照组体重平均少减少4.39kg/只,。平均每只试验组藏羊比对照组多增收124.2元。说明在高寒牧区,青贮饲料的饲喂可以有效缓解冬春季藏羊掉膘的问题。而且,在饲喂青贮料后生产效益显著提高,也为当地牧民带来更多收入。 相似文献
6.
牦牛采食量受牧场草量的限制,体重呈季节性波动,冷季补饲是减少牦牛冬季掉膘的重要措施。本文通过冷季补饲试验,结果为:冷季牦牛掉膘率为13%,相比传统饲养方法减少掉膘20%左右,牦牛体重在4月减少得最为严重。 相似文献
7.
为研究冷季补饲精料对放牧牦牛生长性能、表观消化率和血清生化指标的影响,试验选取健康麦洼牦牛132头,按年龄和体重相近的原则随机分为2组,即对照组和补饲组,每组66头牦牛,补饲组归牧后补饲精料(1 kg/d·头),对照组只放牧。试验期为60 d。结果表明:(1)与对照组相比,补饲组牦牛的总增重和平均日增重显著提高(P 0.05),掉膘降低41.42%,补饲组成年牦牛、犊牦牛的总增重和平均日增重显著高于对照组(P 0.05),成年牦牛掉膘降低55.14%,犊牦牛掉膘降低57.31%;(2)补饲组牦牛粗蛋白质、中性洗涤纤维、酸性洗涤纤维的表观消化率显著高于对照组(P 0.05),分别提高7.56%、9.86%、8.45%,补饲组成年牦牛、犊牦牛酸性洗涤纤维的表观消化率显著高于对照组(P 0.05),犊牦牛提高10.52%,成年牦牛提高10.69%;(3)补饲组与对照组放牧牦牛血清中谷丙转氨酶、谷草转氨酶活性和总蛋白、尿素、葡萄糖、胆固醇、甘油三酯及肌酸激酶含量无显著差异(P 0.05),补饲组成年牦牛血清中总蛋白含量显著高于对照组(P 0.05),提高24.41%。由此可见,冷季补饲精料有助于提高放牧牦牛生长性能和对营养物质的消化率,有利于牦牛冷季保镖,且对犊牦牛的效果优于青年牦牛。 相似文献
8.
藏羊是青海省主要养殖品种之一,藏羊的生产能力较强,而且具有较好的适应能力。随着近年我国草产业的扩大,藏羊养殖业也得到了很大的发展,其繁殖能力也得到了很大提高。但是到了冬春季节天气较寒冷的时候,由于牧草枯萎,藏羊的生活环境受到很大的影响,使得其体重迅速下降,有些藏羊甚至出现死亡的情况,给养殖户带来很大的经济损失。因此,为了避免冷季对藏羊的影响,在冷季时要转变养殖模式,给藏羊提供更多的营养物质,使其在夏季体重得到快速恢复并有所增加,以提高藏羊养殖户的经济效益。对藏羊冷季补饲精料的效果进行了探讨。 相似文献
9.
对西藏岗巴羊成年羊进行为期6个月的冷季补饲试验,其目的是为实际生产提供技术依据。试验结果表明,冬春季补饲后岗巴羊成年羊每只羊平均增重4.01 kg,日增重分别为22.28 g,增重率为13.25%。该研究表明,冬春季适当的补饲对放牧绵羊防止掉膘、促进增重具有重要的作用,优化补饲的精饲料不仅满足了放牧绵羊的营养需要,而且还优化了放牧绵羊的生产,并加快了畜群的周转,同时减少了草场的压力。 相似文献
10.
选择1~2岁藏羊30只,以青干草为基础日粮,每只按每天150,300,450 g 3种精料水平补饲。研究不同精料补饲量对藏羊生产性能和日粮营养物质的消化代谢的影响。结果表明:随精料补饲水平提高,日粮干物质、有机物、氮和钙、磷的表观消化率随之提高。藏羊能量摄入量、表观消化率和代谢率也随之升高,在300 g与450 g精料水平下,能量表观消化率和代谢率差异不显著(P>0.05);300 g粪能损失最低。ADF表观消化率随补饲水平提高而下降。在本试验条件下,从生产性能和藏羊营养代谢方面考虑,藏羊每天补饲精料300 g效果最佳。 相似文献
11.
In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario. Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously. 相似文献
13.
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
14.
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
15.
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
17.
In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium. 相似文献
18.
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
19.
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
20.
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
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