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1.
日粮中添加葡萄渣对小尾寒羊成年母羊体重的影响 总被引：1，自引：0，他引：1
选择49只出生时间相近,健康的成年母羊且平均体重差异不显著(P0.05),随机分为7组,每组7只。在舍饲条件下,在相同的饲养管理条件下进行饲喂试验,观察日粮中添加不同剂量的葡萄渣(8%、16%、24%)和葡萄籽(8%、16%、24%)对成年小尾寒羊体重的影响。即第一组(对照组)与第二(8%葡萄渣)、第三(16%葡萄渣)、第四(24%葡萄渣)组进行比较试验,第一组再与第五(8%葡萄籽)、第六(16%葡萄籽)、第七(24%葡萄籽)组进行比较试验。来探讨添加不同剂量的葡萄渣和葡萄籽饲喂小尾寒羊对其体重的增重影响。结果表明,日粮中添加8%葡萄渣效果最好。 相似文献
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葡萄籽粉替代玉米对成年母羊体重和经济效益的影响 总被引：1，自引：1，他引：0
本试验旨在研究日粮中添加不同剂量葡萄籽粉替代玉米对成年母羊体重和经济效益的影响。试验选取年龄相近(15~16月龄)、健康状况良好的成年母羊32只,根据体重相近原则随机分为4组,对照组饲喂基础日粮,试验Ⅰ、Ⅱ和Ⅲ组分别用葡萄籽粉替代基础日粮中7%、14%和21%玉米。结果表明,试验各组间羊增重差异不显著(P＞0.05),但试验Ⅰ组平均日增重比对照组提高了14.50%,且经济效益比对照组平均提高了37.74%。提示,本试验中在基础日粮中使用葡萄籽粉替代7%玉米对成年母羊的增重效果和经济效益最佳。 相似文献
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《养猪》2017,(5)
试验旨在研究木薯渣不同添加比例对生长猪生长性能(日采食量、日增重、料重比)和经济效益的影响。试验选择250头体重35 kg左右的健康杜长大三元杂种肉猪,随机分为A、B、C、D、E 5组,每组5个重复,每个重复10头猪(公、母各半)。按等能等氨基酸配制饲粮,对照组(A组)饲喂基础饲粮,其余4组(B、C、D、E)分别在对照饲粮的基础上添加木薯渣4%、6%、8%、10%,试验期26 d。试验结果表明,1)生长性能:随着饲粮中木薯渣添加比例的增加,肉猪平均日采食量试验组与对照组无明显差异(P0.05)。日增重随着木薯渣添加比例的增加而升高,当木薯渣添加量为8%时达最高日增重,随着木薯渣添加量的继续增加日增重降低,木薯渣10%组日增重低于8%组。料重比随木薯渣添加比例的增加逐渐降低,当木薯渣添加量为8%时显著低于对照组(P0.05)。2)经济效益:肉猪每千克增重饲料成本,试验D组最低(4.28元),对照组A最高(4.54元),且试验组E与对照组A接近。综上所述,该试验条件下,35~70 kg生长猪饲粮中木薯渣的添加量以8%为宜。 相似文献
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文章旨在探讨葡萄渣对肉鸡生长性能、营养物质表观消化率和肉品质的影响。将500只1日龄肉鸡随机分为4组,每组5个重复,每个重复25只鸡。日粮分为4个处理:对照组(基础日粮),处理1~3组在基础日粮中分别添加4、6和8g/kg葡萄渣。试验从1日龄开展到28日龄。结果显示,日粮添加葡萄渣对体增重无显著线性影响(P>0.05),但对1~7d和8~14d体增重的影响具有显著二次曲线效应(P<0.05),22~28d和1~28d体增重、采食量和饲料转化率均无显著影响(P>0.05)。除灰分表观消化率随葡萄渣添加水平的升高呈二次曲线趋势外(P=0.07),葡萄渣对其他养分表观消化率无显著影响(P>0.05)。葡萄渣添加水平对血清中葡萄糖、甘油三酯和高密度脂蛋白水平无显著影响(P>0.05),而总胆固醇和血清IgG水平表现为显著二次曲线效应(P<0.05)。随着葡萄渣添加水平的升高,肌肉储存0、5和10d后硫代巴比妥酸反应物值表现为显著线性降低(P<0.05),在储存5d和10d时呈二次曲线效应(P<0.05)。此外,葡萄渣也显著降低了肌肉的鲜红度,表现为显著线性和二次曲线效应(P<0.05)。综上所述,在肉鸡日粮中添加8g/kg的葡萄渣,在不影响肉鸡生长性能、营养物质消化率和胴体性状的前提下可有效降低血清胆固醇,改善肉鸡的肉质参数。 相似文献
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《新疆畜牧业》2016,(11)
选择体重28kg左右麦盖提羊×巴音布鲁克羊杂交一代公羊16只,随机分为4个处理组,每组4只,饲喂用葡萄渣分别替代日粮中玉米秸秆0、20%、40%和60%。预试期为15d,正试期为30d,试验期共45d。测定不同添加比例葡萄渣对绵羊日增重的影响。试验结果表明,用葡萄渣替代日粮中20%、40%和60%玉米秸秆后绵羊日增重与对照组相比分别增加63.50g、62.50g和29.17g,其中替代比例20%和40%的试验组绵羊日增重与对照组相比差异显著(P0.05),替代比例60%差异不显著(P0.05)。综上所述,用不同比例葡萄渣替代绵羊日粮中玉米秸秆可增加绵羊日增重,3种替代比例中20%为最理想。 相似文献
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木薯渣对22～49日龄仔鹅生长性能、屠宰性能及内脏器官发育的影响 总被引：1，自引：0，他引：1
本试验旨在研究饲粮中添加不同水平木薯渣对22~49日龄仔鹅生长性能、屠宰性能及内脏器官发育的影响。选取300只19日龄健康、体重相近的扬州鹅公鹅,随机分为5组,每组6个重复,每个重复10只。对照组饲喂基础饲粮,试验组分别饲喂添加5%、10%、15%和20%木薯渣的试验饲粮,试验期28 d。结果表明:1)与对照组相比,饲粮中添加木薯渣显著提高22~28日龄、29~35日龄、22~49日龄仔鹅的平均日采食量和22~28日龄、22~49日龄仔鹅的平均日增重(P0.05),其中22~49日龄仔鹅的平均日增重与木薯渣添加水平呈二次曲线关系(P=0.017),达到最高平均日增重的木薯渣添加水平是12.4%。2)与对照组相比,饲粮中添加木薯渣显著降低仔鹅的肌胃指数和十二指肠的相对重量(P0.05)。3)对各组饲粮增重成本降低的百分比进行曲线模拟,结果呈现二次曲线关系(P0.05);当饲粮中木薯渣添加水平为17.9%时,增重成本降低百分比值最大。由此可见,饲粮中添加木薯渣可以促进22~49日龄仔鹅生长,降低饲料成本,对肌胃、十二指肠的发育有一定的影响。根据饲粮中添加木薯渣对平均日增重最高限量和饲料增重成本的最低限量,建议添加水平为12.4%~17.9%。 相似文献
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《畜牧兽医学报》2017,(8)
旨在研究日粮中添加酿酒葡萄渣对舍饲公羔肌肉抗氧化性及肉品质的影响。选取24只杜泊×小尾寒羊杂交公羔(5月龄,(25±1)kg),采用完全随机设计平均分为4组,其中1组允许自由活动,剩余3组单栏饲养。自由活动组公羔饲喂基础日粮,单栏饲养组公羔分别饲喂含有不同WGP添加量(0%、5%、10%,DM)的日粮。试验结束后,屠宰并取样,测定肉质相关指标与肌肉抗氧化酶活性及表达。结果显示:1)单栏饲养方式极显著增加了羔羊背最长肌中活性氧自由基(ROS,P0.01),显著提高了丙二醛浓度(MDA,P0.05)。日粮中添加WGP可显著降低二者水平(P0.05)。2)日粮中添加WGP对羊肉pH、肉色、蒸煮损失、肌内脂肪含量影响均不显著,但可显著降低背最长肌剪切力(P0.05)与胶原蛋白含量(P0.05)。3)日粮中添加10%WGP可显著提高T-AOC与GPx4活性(P0.05),而5%与10%的WGP添加量可显著提高SOD活性(P0.05),但对catalase活性影响不显著。日粮中添加WGP不改变SOD与catalase表达,但可显著提高Nrf2的mRNA与蛋白质表达丰度(P0.05)。WGP添加后不影响GPx4的mRNA表达,但5%WGP可显著提高其蛋白质含量(P0.05)。结果表明,日粮中添加10%酿酒葡萄皮渣可提高单栏饲养方式下肉羊骨骼肌抗氧化性,减缓氧化应激,并提高羊肉品质。 相似文献
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黄芪药渣作饲料添加剂对肉鸡表观代谢率影响的研究 总被引：2，自引：0，他引：2
张登辉 《国外畜牧学(猪与禽)》2008,28(2):77-78
试验选用84只1日龄(平均体重42g)的健康白羽肉仔鸡,完全随机分为4组,每个组设3个重复,每个重复7只鸡(公母混群)。对照组饲喂基础日粮;T1、T2、T3为处理组,分别饲喂基础日粮 黄芪药渣,黄芪药渣的添加量分别为3%、4%、5%,进行饲养试验,以研究黄芪药渣对肉鸡代谢率指标的影响。结果表明:与对照组相比,基础日粮中添加5%的黄芪渣能显著提高日粮中粗蛋白质的表观代谢率(P<0.05),而黄芪渣的3个不同的添加水平都降低了日粮粗脂肪的表观代谢率(P<0.05)。 相似文献
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Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1984,25(9):347-350
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12.
Heartworm in dogs in Canada in 1982 总被引：8，自引：8，他引：0
Slocombe JO McMillan I 《The Canadian veterinary journal. La revue veterinaire canadienne》1983,24(7):227-229
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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14.
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
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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16.
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Slocombe JO Villeneuve A 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(10):630-633
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
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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.
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
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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