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1.
赵娜 《中国饲料》2024,(6):55-58
文章旨在探究日粮精粗比对牦牛犊牛生长性能、血清生化指标和经济效益的影响。试验将80头体重相近,健康状况良好的牦牛牛犊随机分为4组,每组5个重复,每重复4头。其中试验组1精粗比为30∶70;试验组2精粗比为40∶60;试验组3精粗比为50∶50;试验组4精粗比为60∶40。试验为期107 d,包括10 d预试验和97 d正式试验。试验结果表明,精粗比50∶50和60∶40组牦牛犊牛终末体重分别显著提高6.9%和12.81%(P <0.05),平均日增重分别显著提高10.72%和22.47%(P <0.05);平均日采食量分别显著降低6.11%和17.11%(P <0.05);料重比分别显著降低15.20%和32.41%(P <0.05)。随着精饲料添加量的提高,牦牛犊牛血清总蛋白、总胆固醇、甘油三酯和葡萄糖含量显著提高(P <0.05);日粮精粗比对牦牛犊牛血清白蛋白、尿素氮含量、谷丙转氨酶和谷草转氨酶活性无显著影响(P> 0.05)。随日粮精粗比的提高,牦牛犊牛增重成本先升高后降低,分别为49.30、59.27、53.43和47.93元;毛利润分别为...  相似文献   

2.
试验旨在研究不同精粗比全混合日粮对努比亚山羊生长性能、血清生化指标及瘤胃发酵参数的影响。选取2月龄平均体重为(16.08±0.35) kg努比亚山羊48只,随机分为3组,每组16重复,每个重复1只羊。A组、B组、C组山羊分别饲喂精粗比为6∶4、5∶5、4∶6的全混合日粮。试验期60 d。结果表明,A组山羊的末重和平均日增重显著高于C组(P<0.05),料重比低于B组和C组(P>0.05)。A组山羊血清尿素氮(BUN)含量显著低于C组(P<0.05),葡萄糖(GLU)含量显著高于C组(P<0.05)。A组山羊瘤胃总挥发性脂肪酸、乙酸、丁酸、异戊酸及氨态氮含量显著高于B组和C组(P<0.05),瘤胃pH值显著低于B组和C组(P<0.05)。研究表明,日粮精粗比为6∶4时,可以增加努比亚山羊瘤胃内挥发性脂肪酸含量,提高生长性能。  相似文献   

3.
本试验旨在研究不同精粗比饲粮对育肥前期牦牛生长性能、血清生化指标及瘤胃发酵参数的影响.选取3周岁、体重[(164.9±12.9) kg]相近、体况良好的公牦牛48头,随机分为4组,每组12头. 4组牦牛分别饲喂精粗比为35∶55(C35组) 、50∶50( C50组) 、65∶35( C65组)和80∶20(C80组)...  相似文献   

4.
试验研究不同精粗比日粮对太行黑山羊生长性能、屠宰性能和肉品质的影响.试验选取体况健康、体重(20.23±1.36) kg的育肥太行黑山羊80只,随机分为4组,每组4个重复,每个重复5只羊.对照组黑山羊饲喂羊场自配饲料,试验Ⅰ组、试验Ⅱ组、试验Ⅲ组黑山羊分别饲喂精粗比40∶60、50∶50和60∶40的全混合日粮.预试期...  相似文献   

5.
试验探究不同的饲料精粗比对肉牛生长性能、营养物质消化率以及血清生化指标3个方面的影响。选取40头健康状况良好的肉牛分为4组,每组10个重复,分别饲喂基础饲粮,以及精料占比30%、40%、50%的全混饲粮。结果显示,随着精料占比提高,肉牛的生长性能得以提升,以40%精料占比组的肉牛日均增重最多。精料比的升高会导致营养物质消化率的降低,其中30%和40%精料比的肉牛组的表观消化率较基础饲粮的降幅要显著小于50%精料比的肉牛组。血清生化指标结果显示,饲料精粗比的提高可以降低肉牛血糖,促进营养物质的利用,对肉牛肝脏健康情况没有影响,还会提高其总蛋白含量,提升肉牛的机体免疫能力。试验结果表明,选择饲料在40%精料占比条件进行肉牛的饲喂养殖,对生长性能、营养物质消化和利用的效果最好。  相似文献   

6.
试验旨在探索不同精粗比日粮对贵州白山羊生长性能、屠宰性能、肉品质的影响.试验选用体况健康、体重(15.96±2.94)kg的36头育肥羊随机分为4组,每组9个重复,每个重复1只羊.对照组饲喂羊场原有饲料,3个试验组分别饲喂精粗比为40:60、50:50、60:40的日粮.预试期7 d,正试期60 d.结果表明:60:4...  相似文献   

7.
为探究不同精粗比对淘汰母牛生产性能及血液生化指标的影响。试验将体重相近、体况良好的淘汰安格斯母牛随机分为3组,每组10头,并按试验1、2、3组分别饲喂日粮精粗比为7030,6040,5050的日粮,在试验初期及试验末期称量试验牛体重并收集血清样本,记录各组试验牛日采食量,测定生产性能及血液生化指标。结果表明:各组试验牛初体重、干物质采食量无显著差异(P>0.05),试验末重、平均日增重均为试验1组显著(P<0.05)、极显著(P<0.01)高于试验3组,料重比以试验3组最高,试验1组最低,说明日粮精粗比对淘汰母牛增重效果及饲料利用率具有显著影响(P<0.05)。在血液生化指标检测中,各试验组末期TP、ALB、ALT、BUN值无显著差异(P>0.05),但Glu、AST值均为试验1组显著高于试验3组(P<0.05),而TCHO、TG值为试验1组均极显著高于试验3组(P<0.01),试验2组TCHO值显著高于试验3组(P<0.05),由此表明Glu、AST、TCHO及TG值随日粮精粗比的升高而升高。综上所述,日粮精粗比为7030,淘汰母牛血液...  相似文献   

8.
试验旨在探索不同精粗比日粮对乌珠穆沁羊生长性能、屠宰性能及肉品质的影响。试验选用体况健康、体重相近(25.04±0.65kg)的30头乌珠穆沁羯羊随机分为3组,每组10个重复,每个重复1只羊。对照组饲喂草颗粒(CK),2个试验组分别饲喂精粗比为40∶60(TMR1)、60∶40(TMR2)的日粮。结果表明:对照组采食量和平均日增重显著低于其他2组;全混合日粮1组和2组的胴体重、屠宰率和净肉重均显著高于对照组,但全混合日粮1组和2组之间差异不显著,全混合日粮2组羊肉中脂肪含量显著高于其他2组;全混合日粮2组的熟肉率显著低于对照组和全混合日粮1组;全混合日粮2组的剪切力低于对照组和全混合日粮1组。在本试验条件下,不同精粗比日粮对乌珠穆沁羊生产性能、屠宰性能和肉品质的影响较大,其中全混合日粮1组舍饲乌珠穆沁羊效果较佳。  相似文献   

9.
试验旨在探究不同精粗比例全混合日粮对育肥期藏羊母羔生产性能和经济效益的影响。试验采用单因素随机设计,选取3月龄、体重相近[(22.00±0.54) kg]且体况良好的藏羊母羔210只,随机分为7个处理组,每组5个重复,每个重复6只,分别饲喂精粗比为80:20(试验Ⅰ组)、70:30(试验Ⅱ组)、60:40(试验Ⅲ组)、50:50(试验Ⅳ组)、40:60(试验Ⅴ组)、30:70(试验Ⅵ组)和20:80(试验Ⅶ组)的全混合日粮。试验期为100d,其中预试期为10d,正式试验期为90d。结果表明,藏羔羊在育肥0~90d期间,精料比例占60%~70%的全混合日粮饲喂效果较佳,其中0~30d和31~90d精粗比分别以70:30、60:40的日粮为宜。  相似文献   

10.
旨在研究不同能量和蛋白质水平日粮对豪猪生长性能、血清生化指标及经济效益的影响.试验设计采用2×2双因素随机设计,选取3月龄体重相近的豪猪60头,公母各30头,随机分成5组,每组3个重复,饲喂不同能量和蛋白饲粮,分别为对照组(18.54 MJ/kg,13.96%,原场饲喂粮)、试验组 Ⅰ 组(16.25 MJ/kg,15...  相似文献   

11.
Two experiments were conducted to investigate the effect of different dietary concentrate to forage ratios (C/F) on the growth performance,serum biochemical indexes and economic benefits of Dorper sheep.TestⅠ:40 weaned lambs with the 20 to 35 kg body weight were divided into 4 groups with 10 sheep in each group and provided 4 different C/F diets:group A (40:60),group B (50:50),group C (60:40),group D (70:30) and the experiment lasted for 70 d;TestⅡ:40 growing sheep with the 30 to 45 kg body weight were divided into 4 groups with 10 sheep in each group and provided 4 different C/F diets:group E (35:65),group F (45:55),group G (55:45),group H (65:35) and the experiment lasted for 70 d.The results showed as follows:In the testⅠ:①With the increase of C/F,the ADG of rams increased,but that of ewes was increased initially and then decreased,the ADG of group A in male and female were significantly lower than other three groups (P<0.05),and there were no significant differences in group B,C and D (P>0.05);ADFI of male and female were reduced significantly (P<0.05);F/G was decreased significantly of ram (P<0.05),while that of group B was significantly lower than the other three groups of ewe (P<0.05).②There were no significant differences of TP,TG and Glu in 4 groups (P>0.05),but C/F had different effects on other serum components.③The average net profit in group D of rams was 53.03% higher than group B,and 35.33% higher than group C,while that in group B of ewes was 61.76% higher than group C,and 54.49% higher than group D.In the testⅡ:①With the increasing of the C/F,the ADG of the growing rams was increased gradually,but group G of ewe was significantly higher than group E (P<0.05),and there were no significant differences in group F,G and H (P>0.05).ADFI of male and female was reduced significantly (P<0.05);F/G was decreased significantly of ram (P<0.05),while that of ewes was decreased initially and then increased,group G was significantly lower than the other three groups (P<0.05).②There were no significant differences in TP,TG and Glu in 4 groups (P>0.05),but C/F had different effects on other serum components.③The average net profit in group H of ram was 69.49% higher than group F and 52.13% higher than group G.While that in group G of ewe was 1 282.61% higher than group F.Under the conditions of this experiment,the appropriate C/F was 60:40 to weaned male lambs,while 50:50 to weaned female lambs,and the appropriate C/F was 50:50 if they were mixed fed.TestⅡ showed that the appropriate C/F was 55:45 to both male and female growing sheep.  相似文献   

12.
本试验旨在研究日粮中添加不同形式的亚麻油对肉羊生长性能、屠宰性能及血液脂代谢相关生化指标的影响。选取体重相近的健康杜泊羊(♂)×小尾寒羊(♀)杂交F2代公羔24只,采用单因子完全随机试验设计,随机分为4组,每组6只。CON组为对照组,饲喂基础日粮;LO、L、LOM组为试验组,分别添加含油量4%的亚麻油、亚麻籽炒粒、亚麻油微胶囊脂末。试验期50 d。结果显示:①日粮添加亚麻籽、亚麻油微胶囊脂末能够提高羔羊的生长性能和屠宰性能,L、LOM组平均日增重(ADG)均显著高于LO组(P < 0.05);②LOM组背膘厚显著高于CON组及L组(P < 0.05),但各组间其他屠宰性能指标差异均不显著(P > 0.05);③不同形式的亚麻油均能够显著提高血清中总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)含量(P < 0.05),显著降低LO及L组(INS)浓度(P < 0.05),血清中葡萄糖(GLU)、甘油三酯(TG)及瘦素(LEP)含量虽有上升趋势,但各组间差异不显著(P > 0.05);④不同形式的亚麻油对瘤胃pH影响不显著(P > 0.05),但LOM组可显著提高瘤胃氨态氮(NH3-N)浓度和微生物蛋白(MCP)含量(P < 0.05)。综上所述,亚麻油不同添加形式对血液脂代谢没有产生不良影响,可提高血清TC、LDL-C及HDL-C含量,降低INS的浓度;直接添加亚麻油将对肉羊生长有一定的负面影响,可降低ADG及MCP浓度;添加亚麻籽炒粒和亚麻油微胶囊脂末均可提高肉羊生产性能和瘤胃发酵功能,但添加微胶囊脂末效果更好。  相似文献   

13.
试验旨在研究苜蓿黄酮对绵羊生长性能和血清指标的影响。选择体重为(27.02±3.03)kg的萨福克羊×小尾寒羊杂交F1代公羊28只,采用单因素随机区组试验设计,分成4组,每组7个重复,每个重复1只。Ⅰ、Ⅱ、Ⅲ、Ⅳ组分别在基础日粮中添加0(对照组)、0.1%、0.2%、0.4%苜蓿黄酮。预试期7 d,正试期41 d。结果表明:①日粮中添加苜蓿黄酮对绵羊生长性能无显著影响(P>0.05)。②日粮中添加苜蓿黄酮对绵羊血清中球蛋白(GLB)、天冬氨酸(ASP)、尿素氮(BUN)、高密度脂蛋白(HDL)、磷(P)含量有显著影响(P<0.05),其中Ⅲ组GLB含量在第1天时显著低于Ⅰ、Ⅱ组(P<0.05);Ⅳ组ASP含量在第1和21天时显著低于Ⅰ组(P<0.05),BUN含量在第1天时显著低于Ⅰ组(P<0.05);Ⅱ组HDL含量在第21天时显著低于Ⅰ、Ⅲ组(P<0.05);Ⅳ组P含量在第21天时显著低于Ⅱ、Ⅲ组(P<0.05)。综上所述,日粮中添加苜蓿黄酮可调节绵羊脂类代谢,提高氮的利用率;维持体内能量代谢及平衡Ca、P含量;具有潜在的促生长功能;对肝脏功能无不良影响。建议绵羊日粮中苜蓿黄酮的适宜添加量为0.2%。  相似文献   

14.
This experiment was conducted to evaluate the effect of alfalfa flavonoids (Medicago sativa) on growth performance and serum indexes of sheep.This experiment was performed with hybrid F1 sheep of Suffolk sheep×Small-tailed Han sheep.Twenty-eight sheep with the body weight of (27.02±3.03) kg were randomly divided into 4 groups with 7 replicates in each group and 1 sheep per replicate.Sheep in different groups were fed diets with 0 (group Ⅰ), 0.1% (group Ⅱ), 0.2%(group Ⅲ) and 0.4% (group Ⅳ) alfalfa flavonoids, respectively.The experiment was cosisted of 7-day-preliminary trial and 41-day-formal trial.The results showed as follows:① Dietary supplementation of alfalfa flavonoids had no significant effects on growth performance of sheep(P>0.05).② Dietary supplementation of alfalfa flavonoids had significant effects on the contents of GLB, ASP, BUN, HDL and P in serum (P<0.05).Serum GLB content at the 1st day in group Ⅲ was significantly lower than that in groupsⅠand Ⅱ(P<0.05), serum ASP contents at the 1st and 21th days in group Ⅳ were significantly lower than those in group Ⅰ(P<0.05), serum BUN content at the 1st day in group Ⅳ was significantly lower than that in group Ⅰ(P<0.05), serum HDL content at the 21th day in group Ⅱ was significantly lower than that in groups Ⅰ and Ⅲ (P<0.05), serum P content in group Ⅳ at the 21th day was significantly lower than that in groups Ⅱ and Ⅲ (P<0.05).In conclusion, dietary supplementation of alfalfa flavonoids might modulate lipid metabolism, improve nitrogen utilization, maintain energy metabolic and balance Ca and P contents, and have the potential function for promoting growth and no adverse effect on liver.The results suggested that the appropriate supplemental level of alfalfa flavonoids for sheep was 0.2%.  相似文献   

15.
本试验旨在研究纳豆芽孢杆菌(BSN)对绵羊生长性能、养分表观消化率和血清生化指标的影响。试验采用单因素完全随机试验设计,将体重相近的40只小尾寒羊分为4组,每组10只,每日饲喂在基础饲粮中分别添加0(CK组)、2(A组)、6(B组)和10g/只(C组)BSN的饲粮。结果表明:1)与CK组相比,A、B和C组的平均日增重(ADG)分别提高33.43(P>0.05)、32.29(P<0.05)和57.15g/d(P<0.01)。2)各养分表观消化率随饲粮中BSN添加水平的增加有所提高,但组间差异不显著(P>0.05)。3)A、B和C组血清中尿素氮含量分别比CK组降低0.73%、23.44%和30.04%(P>0.05);血清中免疫球蛋白(Ig)A、IgG和IgM含量组间差异不显著(P>0.05)。在本试验条件下,绵羊饲粮中添加BSN对提高饲粮蛋白质的沉积有积极影响,ADG随BSN添加水平的增加显著增加,每日在饲粮中添加10g/只BSN效果显著。  相似文献   

16.
旨在探究不同颗粒日粮对育肥羊生长性能、养分表观消化率及血清生化指标的影响.选取体重相近、(70±10)日龄的滩羊羯羔羊60只,随机分为4组:对照组(n=15)、试验Ⅰ组(n=15)、试验Ⅱ组(n=15)、试验Ⅲ组(n=15).对照组饲喂自配全混合日粮(40%自配精饲料+60%自配粗饲料),试验Ⅰ组饲喂50%自配全混合日...  相似文献   

17.
本研究旨在阐明低温环境对杜泊羊和萨福克羊生产性能的影响,并进一步探究其影响机制,为内蒙古地区杜泊羊和萨福克羊引种改良、杂交利用提供数据参考。试验选取12月龄体重相近、健康无病的杜泊羊和萨福克羊各20只(公母各半)进行研究,蒙古羊20只(公母各半)作为对照,测定3种羊的生理、血清生化指标及免疫性能并做对比研究。结果显示:杜泊羊和萨福克羊体温、呼吸频率及心率全天均无显著差异(P>0.05);与蒙古羊相比,杜泊羊和萨福克羊全天心率较低(P<0.05),且杜泊羊上午的体温显著低于蒙古羊(P<0.05),全天的呼吸频率显著高于蒙古羊(P<0.05)。杜泊羊和萨福克羊血清中谷丙转氨酶(ALT)、超氧化物歧化酶(SOD)活性及三碘甲腺原氨酸(T3)和甲状腺素(T4)水平与蒙古羊无显著差异(P>0.05),谷草转氨酶(AST)和碱性磷酸酶(AKP)活性显著高于蒙古羊(P<0.05);萨福克羊的乳酸脱氢酶(LDH)活性显著高于杜泊羊和蒙古羊(P<0.05)。与蒙古羊相比,杜泊羊和萨福克羊血清白介素2(IL-2)、白介素4(IL-4)、免疫球蛋白A(IgA)、免疫球蛋白M(IgM)及免疫球蛋白G(IgG)含量均无显著差异(P>0.05),但杜泊羊血清中IL-2的浓度显著高于萨福克羊(P<0.05)。综上所述,在内蒙古冬季低温环境下,杜泊羊和萨福克羊全天心率显著低于蒙古羊,血清中ALT和AKP活性显著高于蒙古羊;杜泊羊血清中LDH活性显著低于萨福克羊,IL-2的含量显著高于萨福克羊。除AST活性超出正常范围,杜泊羊和萨福克羊其余血清生化指标均在正常范围内。说明在内蒙古低温环境下,杜泊羊和萨福克羊可以维持正常的生理状态,并较好地适应内蒙古地区的环境气候。  相似文献   

18.
本研究旨在阐明低温环境对杜泊羊和萨福克羊生产性能的影响,并进一步探究其影响机制,为内蒙古地区杜泊羊和萨福克羊引种改良、杂交利用提供数据参考。试验选取12月龄体重相近、健康无病的杜泊羊和萨福克羊各20只(公母各半)进行研究,蒙古羊20只(公母各半)作为对照,测定3种羊的生理、血清生化指标及免疫性能并做对比研究。结果显示:杜泊羊和萨福克羊体温、呼吸频率及心率全天均无显著差异(P>0.05);与蒙古羊相比,杜泊羊和萨福克羊全天心率较低(P<0.05),且杜泊羊上午的体温显著低于蒙古羊(P<0.05),全天的呼吸频率显著高于蒙古羊(P<0.05)。杜泊羊和萨福克羊血清中谷丙转氨酶(ALT)、超氧化物歧化酶(SOD)活性及三碘甲腺原氨酸(T3)和甲状腺素(T4)水平与蒙古羊无显著差异(P>0.05),谷草转氨酶(AST)和碱性磷酸酶(AKP)活性显著高于蒙古羊(P<0.05);萨福克羊的乳酸脱氢酶(LDH)活性显著高于杜泊羊和蒙古羊(P<0.05)。与蒙古羊相比,杜泊羊和萨福克羊血清白介素2(IL-2)、白介素4(IL-4)、免疫球蛋白A(IgA)、免疫球蛋白M(IgM)及免疫球蛋白G(IgG)含量均无显著差异(P>0.05),但杜泊羊血清中IL-2的浓度显著高于萨福克羊(P<0.05)。综上所述,在内蒙古冬季低温环境下,杜泊羊和萨福克羊全天心率显著低于蒙古羊,血清中ALT和AKP活性显著高于蒙古羊;杜泊羊血清中LDH活性显著低于萨福克羊,IL-2的含量显著高于萨福克羊。除AST活性超出正常范围,杜泊羊和萨福克羊其余血清生化指标均在正常范围内。说明在内蒙古低温环境下,杜泊羊和萨福克羊可以维持正常的生理状态,并较好地适应内蒙古地区的环境气候。  相似文献   

19.
本研究在绵羊日粮中添加一定量的葡萄皮渣,旨在研究其对绵羊生长性能、器官指数及血液生化指标的影响。试验选取24只5月龄、体重25 kg左右的杜泊羊×小尾寒羊杂交公羊,采用完全随机设计分为4组,每组6只,分别饲喂不同葡萄皮渣添加水平(0、5%、10%、20%)日粮。结果表明,10%添加组日增重(ADG)显著高于0、5%添加组(P<0.05);10%添加组肝脏及肾脏重量显著高于0、5%添加组(P<0.05);10%和20%添加组的大肠重量显著高于其他两组(P<0.05);添加葡萄皮渣能极显著增加皱胃重量(P<0.01)。适量添加葡萄皮渣能显著提高绵羊血清高密度脂蛋白胆固醇(HDL-C)含量,其中以10%添加水平最高(P<0.05);谷丙转氨酶(ALT)与谷草转氨酶(AST)变化趋势相同,均以5%添加组最低,显著低于0、20%添加组(P<0.05);与未添加组相比,5%添加组绵羊血清肌酐(CRE)含量显著降低(P<0.05),而总抗氧化能力(T-AOC)明显提高(P<0.05);过氧化氢酶(CAT)活性以20%添加组最高,显著高于其他3组(P<0.05)。由以上结果可知,日粮中添加一定量的葡萄皮渣可提高绵羊日增重,促进肝脏、肾脏及消化器官的发育,增加血清高密度脂蛋白胆固醇含量,提高血清抗氧化水平。综合各个指标,葡萄皮渣添加量以10%为宜。  相似文献   

20.
This experiment was aimed to investigate the effect of grape pomace on growth performance,organ index and blood biochemical indexes in sheep.A total of 24 hybrid 5-month-old Dorper (♂)×Small Tail Han sheep (♀) F1 male lambs weighted at 25 kg were randomly divided into 4 groups with 6 lambs per group.All these sheep were fed diets with the addition of grape pomace at 0,5%,10%,20% on a dry weight basis, respectively.The results showed that the ADG in group 10% was extremely significantly higher than that in group 0 and 5% (P<0.01),and the weights of liver and kidney in group 10% were notably higher than that in group 0 and 5% (P<0.05).The weights of large intestinein in group 10% and 20% were obviously higher than that in the other two groups (P<0.05).The weights of abomasum were extremely significantly increased in grape pomace supplemental groups (P<0.01).Grape pomace could significantly improve serum HDL-C,and it was the highest in group 10% (P<0.05).ALT and AST had the same variation trend,they were the lowest in group 5%,and the values in group 5% were significantly lower than that in group 0 and 20% (P<0.05).Compared with group 0,the serum CRE in group 5% was significantly decreased (P<0.05),while the serum T-AOC significantly improved (P<0.05).The CAT enzyme activity was highest in group 20%,it was higher than the other groups (P<0.05).In conclusion,adding grape pomace properly could improve ADG,promote development of liver,kidney and digestive organs,increas serum HDL-C level,and improv the level of serum antioxidant.Taking all factors into account,dietary supplementation with 10% of grape pomace was advisable.  相似文献   

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