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1.
本试验选取480只21日龄健康、体重相近樱桃谷肉鸭,随机分为4组,每组设6个重复,各重复20只。对照组饲喂基础日粮,试验组饲喂在基础日粮中添加3%、6%、9%棉籽粕代替部分豆粕的日粮。试验期间记录各组体增重及耗料量等,试验结束后,测定各组肉鸭的生产性能、屠宰性能、靶器官比重及血清中尿素氮、总蛋白、谷草转氨酶、谷丙转氨酶含量,研究3～5周龄肉鸭日粮中棉籽粕适宜添加比例。试验期14d。结果表明:三种替代比例对肉鸭体增重、料重比和屠宰性能无显著影响(P0.05);3%和6%添加量对肉鸭肝脏比重、血清尿素氮、总蛋白、谷草转氨酶、谷丙转氨酶含量无显著影响(P0.05),日粮中添加9%棉籽粕,对肉鸭肝脏比重无显著影响(P0.05),但谷草转氨酶、谷丙转氨酶显著增加(P0.05)。本试验条件下,日粮中添加6%棉籽粕,樱桃谷肉鸭生产、屠宰性能最理想,胴体品质也有一定改善,且对肝脏发育、血液生化指标无显著影响。 相似文献
2.
玉米蛋白饲料在樱桃谷肉鸭日粮中的应用研究 总被引：2，自引：0，他引：2
本文研究了3～5周龄肉鸭日粮中玉米蛋白饲料适宜添加比例.480只21日龄健康樱桃谷肉鸭,按体重相近的原则随机分为4组,每组设6个重复,各重复20只.对照组饲喂基础日粮,试验组分别在基础日粮中添加5%、8%、11%玉米蛋白粉代替部分豆粕.试验期间记录各组体增重及耗料量等,试验结束后,测定各组肉鸭的生产性能、屠宰性能及血清中尿素氮、总蛋白、甘油三酯含量.结果表明,3种添加比例时肉鸭体增重、料重比和屠宰性能无显著影响(P>0.05).5%、8%添加量对肉鸭血清尿素氮、总蛋白、甘油三酯含量无显著影响(P>0.05),日粮中添加11%玉米蛋白饲料,尿素氮显著增加(P<0.05).本试验条件下,日粮中添加8%玉米蛋白饲料,肉鸭生产性能最理想,单位增重饲料成本比基础日粮组低3.82%,胴体品质也有一定改善,且对血清中尿素氮、总蛋白、甘油三酯含量无显著影响. 相似文献
3.
本试验旨在研究不同比例膨化棉籽粕替代豆粕对蛋鸡生产性能、蛋品质及血清生化指标的影响.选取40周龄海兰褐蛋鸡360羽,随机分成5组,每组4个重复,每个重复18羽.对照组饲喂玉米-豆粕型基础饲粮,试验1组用6％普通未膨化棉籽粕替代豆粕,试验2、3、4组分别用6％、8％、10％的膨化棉籽粕替代豆粕,试验期8周.结果表明:1)饲粮中不同比例膨化棉籽粕对蛋鸡生产性能影响不显著(P＞0.05),而试验1组产蛋率和平均蛋重显著低于对照组(P＜0.05),料蛋比显著高于对照组(P＜0.05).2)与对照组相比,各试验组蛋黄颜色均显著加深(P＜0.05),而试验1、4组蛋白高度显著降低(P＜0.05).饲粮添加棉籽粕对蛋壳强度和蛋壳厚度无显著影响(P＞0.05).3)试验1组总蛋白、钾含量均显著低于对照组(P＜0.05),谷丙转氨酶活性显著高于对照组和试验2组(P＜0.05),尿酸含量显著高于试验2组(P＜0.05);试验4组血清总钙含量显著低于对照组(P＜0.05).随着膨化棉籽粕添加量的增加,血清总蛋白、总钙和钾含量均逐步降低,谷丙转氨酶活性则逐步升高,呈现一定的剂量-效应关系.饲粮添加棉籽粕对血清白蛋白含量无显著影响(P＞0.05).由此可见,蛋鸡饲粮中添加8％膨化棉籽粕对蛋鸡生产性能、蛋品质及血清生化指标无明显影响.棉籽粕膨化处理能有效降低游离棉酚对蛋鸡生产性能和蛋品质等的影响,提高蛋鸡对棉籽粕的利用能力. 相似文献
4.
本试验先后进行2次试验研究饲粮棉籽粕水平对不同生长阶段肉鸭屠宰性能的影响,并进一步根据屠宰性能探讨肉鸭饲粮棉籽粕的适宜水平。试验1、2均采用单因素试验设计,试验1饲粮棉籽粕水平分别为0、8.28%、16.56%、24.83%、33.11%;试验2饲粮棉籽粕水平分别为0、5.83%、11.60%、17.50%、23.30%。试验1肉鸭1~21日龄采食试验饲粮,22~35日龄采食无棉籽粕的玉米-豆粕型饲粮;试验2肉鸭1~14日龄采食无棉籽粕饲粮,15~35日龄采食试验饲粮。35日龄时每个试验的每个重复屠宰1只肉鸭测定其屠宰性能。结果表明：1)在试验1中,随饲粮棉籽粕水平的增加,肉鸭半净膛率与全净膛率线性增加( P<0.05),16.56%棉籽粕组肉鸭腹脂重和腹脂率显著低于其他各组( P<0.05)。2)在试验2中,随饲粮棉籽粕水平的增加,饲粮棉籽粕水平线性或二次影响肉鸭活体重、半净膛重、全净膛重和胸肌重( P<0.05),二次影响肉鸭的屠体重( P<0.05),23.30%棉籽粕组肉鸭活体重、半净膛重、全净膛重、胸肌重及胸肌率显著低于其他各组(P<0.05)。3)基于不同的屠宰指标肉鸭饲粮棉籽粕适宜水平为7.51%~14.78%。以上结果提示,在以可消化氨基酸平衡模式配制饲粮时,1~21日龄肉鸭采食棉籽粕高达33.11%饲粮,22~35日龄采食玉米-豆粕型饲粮对35日龄屠宰性能无显著影响;结合35日龄屠宰性能来考虑,15~35日龄肉鸭饲粮棉籽粕水平不宜超过14.78%。 相似文献
5.
本试验通过在正常肉鸭日粮及霉变肉鸭日粮中添加不同剂量的霉菌毒素吸附剂可立吸产品,研究可立吸对肉鸭脱毒性能的影响。试验结果表明:⑴在正常肉鸭日粮中添加2 kg/t可立吸产品,可明显提高肉鸭日增重,提高了13.37%;在血清生化免疫方面,可立吸对肉鸭的肝脏细胞保护最佳,其谷草转氨酶、谷丙转氨酶相对于对照组分别降低了4.29%和27.97%。⑵霉变肉鸭日粮中添加可立吸,对肉鸭鸭日增重有明显的效果,其中添加2 kg/t可立吸相对于霉变组日增重提高了15.08%,在降低肉鸭死淘方面也有明显的效果,死淘率由霉变组的56.3%降低为32.7%。可立吸对修复肉鸭肝脏损伤均具有较好的效果,血清生化指标显示:相对于霉变组,2 kg/t可立吸组肉鸭谷草转氨酶、谷丙转氨酶分别降低了39.08%和16.04%。血清碱性磷酸酶、总胆固醇分别提高了31.15%和17.95%。综上所述,在肉鸭日粮中添加可立吸具有很好的脱毒解毒功效,对肉鸭肝脏损伤具有很好的修复作用。 相似文献
6.
棉籽粕和菜籽粕对凡纳滨对虾生长、非特异免疫和体成分的影响 总被引：1，自引：0，他引：1
选用900尾初重为0.61 g的凡纳滨对虾,棉籽粕和菜籽粕按照1:1比例,棉籽粕、菜籽粕使用总量由6%增加到22%,替代日粮中的鱼粉、大豆粕及花生粕,鱼粉分别为25%、20%两个水平,配制6种试验饲料,投喂8周后,测定对虾生长性能、非特异性免疫指标和体成分.结果显示:(1)投喂6种试验饲料对凡纳滨对虾4周和8周末重、增重率、饲料系数及8周蛋白质效率均无显著影响(P＞0.05).(2)随着棉籽粕和菜籽粕使用比例的增加,对虾血清总蛋白含量显著下降,而血清超氧化物歧化酶(SOD)活力显著上升(P＜0.05),但是血清谷草转氨酶(GOT)活性和谷丙转氨酶(GPT)活性均无显著差异(P＞0.05).投喂6种试验饲料对虾肝胰腺过氧化氢酶(CAT)、GOT和GPT无显著差异,不同组别间肝胰腺SOD存在显著差异.(3)投喂6种试验饲料对虾肌肉干物质、粗蛋白质含量无显著差异(P＞0.05),而不同组别粗脂肪有显著差异(P＜0.05). 相似文献
7.
《动物营养学报》2020,(1)
本试验旨在研究饲粮中添加不同水平热带假丝酵母发酵棉籽粕替代豆粕对白羽肉鸡蛋白质代谢的影响。选取1日龄科宝肉鸡公鸡480只,随机分成4个组,每组6个重复,每个重复20只鸡。对照组饲喂不添加发酵棉籽粕的基础饲粮,试验组分别饲喂在基础饲粮中添加3%、6%、9%发酵棉籽粕替代豆粕的试验饲粮。试验分生长前期(1～21日龄)和生长后期(22～42日龄)2个阶段进行。结果表明:1)第21天时,6%发酵棉籽粕添加组白羽肉鸡的胴体粗蛋白质沉积量、腿肌中的乳酸脱氢酶(LDH)和碱性磷酸酶(AKP)活性显著高于其他组(P0.05);与对照组相比,3%、6%、9%发酵棉籽粕添加组的胴体粗蛋白质和干物质含量、粗蛋白质和干物质表观消化率、表观代谢能、肝脏中的谷草转氨酶(GOT)和谷丙转氨酶(GPT)活性显著提高(P0.05),3%、6%发酵棉籽粕添加组的羽毛粗蛋白质含量和胸肌中的LDH、AKP活性显著提高(P0.05),6%发酵棉籽粕添加组肝脏中的LDH活性和胸肌、腿肌、肝脏中的甲状腺素(T_4)、生长激素(GH)含量显著提高(P0.05),9%发酵棉籽粕添加组胸肌和肝脏中的GH含量显著提高,6%、9%发酵棉籽粕添加组肝脏中的胰岛素(INS)含量显著提高(P0.05)。2)第42天时,与对照组相比,6%、9%发酵棉籽粕添加组的胴体粗蛋白质沉积量、肝脏中的LDH活性及胸肌、腿肌、肝脏中的GH含量显著提高(P0.05),3%、6%发酵棉籽粕添加组的粗蛋白质表观消化率显著提高(P0.05),3%、6%、9%发酵棉籽粕添加组肝脏中的AKP和GOT活性及胸肌、腿肌、肝脏中的T_4含量、肝脏中的INS含量显著提高(P0.05)。综上,在白羽肉鸡饲粮中添加发酵棉籽粕可通过提高饲粮的养分表观消化率、蛋白质代谢相关酶活性和激素含量,促进机体蛋白质沉积。 相似文献
8.
本研究旨在评估中草药制剂老鼠簕对感染鸭肝炎病毒肉鸭的生长性能、抗氧化及肝脏保护作用。选择平均初始体重为（48.63±0.06）g的肉鸭600只,随机分为4组,每组5个重复,每个重复30只。对照组肉鸭饲喂基础日粮（不处理）,试验组肉鸭注射0.15 mL/只鸭肝炎病毒B,分别饲喂基础日粮+0、40和80 mg/kg中草药制剂。结果：T1组肉鸭42 d体重、22～42 d日增重最低（P＜0.05）。与对照组相比,T1组肉鸭22～42 d饲料报酬显著降低1.5%（P＜0.05）,同时在整个试验阶段,T1组肉鸭饲料报酬较其他组分别显著降低8.33%、6.38%和6.38%（P＜0.05）。T1组肉鸭42 d血清谷胱甘肽过氧化物酶（GSH-Px）活性最低（P＜0.05）,但21和42 d血清丙二醛含量及肝脏谷草转氨酶（AST）和谷丙转氨酶（ALT）活性最高（P＜0.05）。对照组肉鸭肝脏无病变的样品数显著高于试验组（P＜0.05）,T2组肝脏处于轻微病变数显著高于其他组（P＜0.05）,而T1组肝脏处于严重病变的样品数最高（P＜0.05）。结论：日粮添加中草药制剂（老鼠簕）对肉鸭病毒性肝炎无抵抗作用,但其可以通过提高血清抗氧化酶活性,降低肝脏转氨酶、缓解病毒性肝炎所致的损伤作用。
[关键词]中草药|鸭|生长性能|抗氧化|病毒性肝炎 相似文献
9.
低蛋白日粮添加氨基酸对肉兔生产性能及血液生化指标的影响 总被引：6，自引：0，他引：6
选择60日龄虎皮黄兔90只,研究低蛋白日粮添加氨基酸对其生产性能及体内与蛋白质、氨基酸代谢有关的血液生化指标的影响。结果表明,通过添加合成氨基酸,日粮粗蛋白下降2个百分点,对日增重、料肉 比、血浆尿素氮、谷丙转氨酶、谷草转氨酶、血清蛋白质、肝糖元无显著影响(P<0.05),当日粮粗蛋白下降4～6个百分点时,日增重、料肉比极显著下降(P<0.01),血清尿素氮显著升高(P<0.05),其他血液生化指标未产生显著影响。但是有数值上的变化,变化趋势与生产性能变化一致。 相似文献
10.
菜籽粕替代豆粕对肉鸭生产性能、胴体品质及血液指标的影响 总被引：1，自引：0，他引：1
试验主要研究肉鸭日粮中双低菜籽粕代替豆粕的适宜比例。480只21日龄健康樱桃谷肉鸭,按体重相近的原则随机分为4组,每组设6个重复,每重复20只。对照组饲喂基础日粮,试验组分别在基础日粮中添加8%、11%、14%双低菜籽粕代替豆粕。试验期间记录各组肉鸭体增重及耗料量等,试验结束后,测定各组肉鸭的生产性能、胴体指标、靶器官比重及血清中T3、T4含量。结果表明,三种添加比例对肉鸭体增重、料重比和胴体指标无显著影响(P>0.05)。8%、11%添加量对肉鸭靶器官比重及T3、T4含量无显著影响(P>0.05),日粮中添加14%菜籽粕,甲状腺重量显著增加(P<0.05),但对肝脏重及血清中T3、T4含量无显著影响(P>0.05)。本试验条件下,日粮中添加11%双低菜籽粕,肉鸭生产性能最理想,胴体品质也有一定改善,且对靶器官及血清中T3、T4含量无明显影响。 相似文献
11.
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
13.
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
15.
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.
17.
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
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.
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
20.
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.
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