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为探讨不同精粗比日粮对海南黑山羊生长性能,血液指标及经济效益的影响,选取身体健康体重约10kg生长期海南黑山羊30只,随机分为6组,分为对照组CK(精料、粗料分开饲喂,精粗比50∶50)、全混合日粮组(40∶60,45∶55,50∶50,55∶45,60∶40),每组5只羊,试验期30d。结果显示,饲喂全混合日粮可以显著提高平均日增重、总增重,降低料重比(P0.05),对采食量影响不显著(P0.05),精粗比40∶60处理组,平均日增重、总增重最高,料重比最低。不同处理试验羊血液白蛋白、谷丙转氨酶、谷草转氨酶和碱性磷酸酶含量差异均不显著(P0.05),血液总蛋白、球蛋白、胆固醇、甘油三酯、尿素、葡萄糖含量有不同的影响(P0.05)。饲喂全混合日粮提高了纯收入、投入产出比,精粗比40∶60处理组经济效益最好。综合考虑生长性能、血液指标和经济效益,海南黑山羊饲喂全混合日粮优于精料、粗饲料分开饲喂,精粗比为40∶60的全混合日粮时,生长性能、经济效益最好。 相似文献
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选用3头3月龄左右装有瘤胃瘘管的荷斯坦奶公犊,按3×3完全拉丁方试验设计,喂给3种日粮,日粮组成按精粗比分别表示为:Ⅰ组70∶30、Ⅱ组60∶40、Ⅲ组50∶50,研究不同日粮组成下高寒地区小黑麦的DM、CP以及NDF在断奶初期奶公犊瘤胃内动态降解。试验结果表明:精粗比为60∶40日粮时,其CP的消失率和降解参数明显低于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05);其DM和NDF的消失率和降解参数明显高于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05)。 相似文献
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选用3头3月龄左右装有瘤胃瘘管的荷斯坦奶公犊,按3×3完全拉丁方试验设计,喂给3种日粮,日粮组成按精粗比分别表示为:Ⅰ组70∶30、Ⅱ组60∶40、Ⅲ组50∶50,研究不同日粮组成下苜蓿干草的DM、CP以及NDF在断奶初期奶公犊瘤胃内动态降解。试验结果表明:精粗比为60∶40日粮时,其CP的消失率和降解参数明显低于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05);其DM和NDF的消失率和降解参数明显高于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05)。 相似文献
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选用3头三月龄左右装有瘤胃瘘管的荷斯坦奶公犊,按3×3完全拉丁方试验设计,喂给三种日粮,日粮组成按精粗比分别表示为:Ⅰ、70∶30;Ⅱ、60∶40;Ⅲ、50∶50,研究不同日粮组成下苜蓿干草的DM、CP以及NDF在断奶初期奶公犊瘤胃内动态降解。试验结果表明:精粗比为60∶40日粮时,其CP的消失率和降解参数明显低于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05);其DM和NDF的消失率和降解参数明显高于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05)。 相似文献
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选用3头三月龄左右装有瘤胃瘘管的荷斯坦奶公犊,按3×3完全拉丁方试验设计,喂给三种日粮,日粮组成按精粗比分别表示为70∶30、60∶40和50∶50,研究不同日粮组成下苜蓿干草的DM、CP以及NDF在断奶初期公犊瘤胃内的动态降解规律。试验结果表明:精粗比为60∶40日粮时,其CP的消失率和降解参数明显低于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05);其DM和NDF的消失率和降解参数明显高于精粗比为70∶30和50∶50的日粮,差异显著(P<0.05)。 相似文献
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选用3头三月龄左右装有瘤胃瘘管的荷斯坦公犊,按3×3完全拉丁方试验设计,喂给三种日粮,日粮组成按精粗比分别表示为:Ⅰ:70∶30;Ⅱ:60∶40;Ⅲ:50∶50,研究不同日粮组成下新疆芦苇的DM、CP以及NDF在断奶初期奶公犊瘤胃内动态降解。结果表明:精粗比为60∶40日粮时,其CP的消失率和降解参数显著低于精粗比为70∶30和50∶50的日粮(P<0.05);其DM和NDF的消失率和降解参数显著高于精粗比为70∶30和50∶50的日粮(P<0.05)。 相似文献
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不同精粗比对西杂公牛生长发育的影响 总被引：1，自引：0，他引：1
[目的]本试验旨在研究不同日粮精粗比对西杂青年公牛体重及体尺(体高、体长、胸围)的影响,为西杂公牛育肥提供理论依据。[方法]选择18头9月龄平均体重约270kg的西杂公牛,随机分为1、2、3组,分别饲喂精粗比为45∶55(低)、50∶50(中)和55∶45(高)的3种日粮。[结果]在日粮种类相同的情况下,西杂牛的日增重受精料水平的影响较大,但体尺的日增量受精料水平的影响较小。[结论]不同精粗比日粮的西门塔尔公牛的日增重不同,西门塔尔公牛采食精粗比较高的日粮,其增重速度较快。 相似文献
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Feeding forage mixtures of alfalfa hay and maize stover optimizes growth performance and carcass characteristics of lambs 
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下载免费PDF全文 A feeding experiment was carried out to determine the effects of different proportions of alfalfa hay and maize stover on the growth performance and carcass characteristics of fattening lambs. Forty‐two healthy 3.5‐month‐old male Small‐tail Han lambs of 23.89 ± 0.38 kg body mass were assigned to seven groups, which were fed mixed diets composed of maize stover and alfalfa hay containing 0%, 30%, 40%, 50%, 60%, 70% or 100% maize stover on a dry matter (DM) basis. Each lamb received 1.5 kg DM of forage mixture three times daily and supplementary concentrate (0.5 kg corn per lamb per day) for 60 days. Compared with the control forage diet of maize stover only, forage intake rate and forage conversion rate on the 40% maize stover/60% alfalfa hay mixture were 30% and 5% higher, respectively. Body weight, dressing percentage and net income were 6.7 kg, 8% and 94.37 Yuan higher per lamb, respectively. Thus, feeding lambs with a forage mixture of maize stover and alfalfa hay in a ratio of 40:60 optimized the production performance, slaughter performance, and the income derived from lambs. 相似文献
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试验研究了发酵葡萄渣颗粒饲料对育肥牛生产性能的影响。选择26头平均体重为304 kg左右的西门塔尔杂种牛,按体重和性别随机分成2个处理组,每组13头,对照组日粮组成为自配肉牛精料补充料+青贮饲料+干草,试验组日粮组成为发酵葡萄渣颗粒饲料+青贮饲料+干草,试验期为60 d。试验结果表明,与对照组相比,育肥牛饲喂发酵葡萄渣颗粒饲料,日增重提高了5.89%(P0.05),料重比降低了2.79%(P0.05),头均毛利润提高了58.24元,经济效益提高了4.17%。 相似文献
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全价颗粒饲料与传统精粗料混合饲喂技术对肉羊育肥效果的对比试验 《畜牧与饲料科学》2016,37(4):38-38
为了加快内蒙古五原县肉羊产业发展,增加养殖户经济效益,探讨不同饲料对肉羊育肥增重效果的影响,为科学养羊提供依据,选取3月龄体格、体重相近的小尾寒羊公羔100只,随机分为试验组和对照组,每组50只。试验组羔羊饲喂全价颗粒饲料,对照组采用传统的精、粗料混合饲喂技术,试验期75 d。试验结束时,比较2组羔羊的增重指标和饲料利用率指标,并进行养殖效益分析。结果表明,试验组肉羊的日增重、总增重、胴体重和屠宰率均显著高于对照组（P〈0.05）;试验组羔羊的饲料实际采食量较对照组显著提高（P〈0.05）,试验组羔羊的饲料损耗量较对照组显著降低（P〈0.05）,饲料利用率提高了4.36%,试验组羔羊的料肉比较对照组显著降低（P〈0.05）;试验组单只羔羊育肥的纯收入显著高于对照组（P〈0.05）。在肉羊育肥过程中,饲喂全价颗粒饲料能显著提高羊只的生长速度和产肉性能,降低人工成本,减少饲料浪费,提高经济效益。 相似文献
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[目的]评价棕榈粕渣发酵饲料对肉牛养殖效果的影响,为棕榈粕渣发酵饲料产品的研发与应用提供依据。[方法]选用24头夏洛莱牛与当地黄牛的杂交育成牛为试验对象,随机分成Ⅰ、Ⅱ、Ⅲ组与对照组4个组。在育肥期(14~16月龄),对照组试验牛饲喂精料补充料和基础粗饲料(100%玉米秸秆),试验组Ⅰ、Ⅱ、Ⅲ组试验牛饲喂与对照组相同的精料补充料和分别用10%、20%、30%棕榈粕渣发酵饲料替代玉米秸秆的粗饲料,拴系饲养,进行饲养试验。经过分析肉牛的生长性能、健康状况、经济效益,评价其应用效果。[结果]在育肥期,以棕榈粕渣发酵饲料替代部分(10%、20%、30%)玉米秸秆作为肉牛粗饲料能达到同样的育肥效果;育肥过程中对照组及试验组杂交牛存活率均为100%,健康状况良好;各组盈利排序为试验组Ⅲ >试验组Ⅱ >试验组Ⅰ >对照组。[结论]含有棕榈粕渣发酵饲料的肉牛粗饲料可以降低养殖成本、提高经济效益。 相似文献
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Effect of monensin on rumen ciliate protozoa in sheep 总被引：1，自引：0，他引：1
In a first experiment 4 rams consumed over a period of 70 days 0; 82; 208 and 345 mg of monensin daily, respectively. All doses of monensin caused a marked decrease in total numbers of rumen protozoa in samples taken after this period. More than 90% of total protozoal numbers belonged to the genus Entodinium. The sensitivity of the genus Entodinium to monensin was found to be lower than that of genera Dasytricha and Isotricha. In the second experiment 24 lambs were fed hay and concentrates in the ratio 60:40% (groups 1 and 2) and 40:60% (groups 3 and 4). Groups 2 and 4 received 40 mg monensin per animal daily during 16 weeks. The decrease in protozoal numbers due to monensin in samples taken after this period was significant (P less than 0.001) in lambs fed the concentrate diet (groups 3 and 4) and also in lambs from groups 1 and 2 fed the roughage diet (P less than 0.05). The statistical evaluation of the inhibition of total protozoal numbers by monensin (%) in lambs fed both diets has shown that the antiprotozoal effect of monensin was significantly more intensive with the concentrate diet (P less than 0.025) than with the roughage diet. 相似文献
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研究了可溶性干酒糟（DDS）作为饲料原料对生长育肥猪生长性能的影响。选用72头健康体重约70 kg的三元育肥猪,随机分成2个处理组,每个处理组2个重复,每个重复18头猪,对照组饲喂基础日粮,试验组饲喂含40%DDS的试验日粮,试验正式期20 d。结果显示,与对照组相比,试验组育肥猪的平均日增重、平均采食量和料肉比方面无明显差异（P>0.05）,从经济效益分析来看,与对照组相比,试验组猪在日采食成本和日增重成本方面分别下降了1.41元/kg和1.50元/kg,整个育肥周期每头猪可多获利约75元。试验证实在生长育肥猪的日粮中添加DDS能够完全满足育肥猪的生长需要,并可降低养殖成本,进一步提高经济效益。 相似文献
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针对夏季绵羊遭受严重热应激现状,研究日粮中添加中草药组方(藿朴蒲苓散)对夏季育肥羔羊生长性能、消化性能、瘤胃发酵参数及血清生化指标的影响。选择200只体重相近、年龄一致的健康育肥公羔羊,随机分为4组,分别饲喂0%(对照组)、0.5%、1.0%和1.5%藿朴蒲苓散,试验期30 d,试验期间舍内温湿指数平均达79.11。试验末检测育肥羔羊生长性能、养分表观消化率、瘤胃发酵参数和血清生化指标。结果表明：1)饲喂0.5%藿朴蒲苓散的羊日增重显著高于对照组(P < 0.01);日饮水量和日采食量在不同组间未表现出显著性差异(P>0.05)。从生理指标分析,饲喂中草药的羊直肠温度和呼吸频率与对照组比较均未表现出显著性差异(P>0.05)。2)0.5%组的干物质(DM)、中性洗涤纤维、酸性洗涤纤维、粗蛋白、钙和磷等养分表观消化率均显著高于对照组(P < 0.05),DM消化率较对照组提高7.20%(P < 0.01),而1.0%和1.5%组的消化率较对照组未表现出显著性差异(P>0.05)。3) 从血清生化指标上,3个给药组的生长激素均显著高于对照组(P < 0.05),0.5%组含量最高,较对照组提高16.90%;且0.5%组的甲状腺素含量显著高于其他组(P < 0.05)。4)从瘤胃发酵参数分析,3个给药组总挥发性脂肪酸含量、乙酸和丁酸含量均显著高于对照组(P < 0.05),分别是对照组的1.19~1.30倍、1.18~1.24倍和1.28~1.43倍。综上,本试验条件下,日粮中添加藿朴蒲苓散有助于缓解育肥羔羊的热应激,添加量以0.5%效果更佳。 相似文献
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Paulo Márcio Barbosa de Arruda Leite Robson Magno Liberal Véras Antonia Sherlânea Chaves Véras Adriana Guim Evaristo Jorge Oliveira de Souza Karla Katiene de Souza Silva Lígia Maria Gomes Barreto Janaina de Lima Silva Daniel Barros Cardoso 《Tropical animal health and production》2018,50(8):1807-1814
This aim of this study was to evaluate the intake and apparent digestibility of nutrients, ingestive behavior, blood parameters, and performance of lambs fed two roughage:concentrate (R:C) ratios, with or without liquid residue of cassava (LRC). Forty lambs (19.5?±?1.45 kg body weight) were distributed in a completely randomized 2?×?2 factorial design. The intake of dry matter (1311 g/day) and total digestible nutrients (755 g/day), and the intake (172 g/day) and digestibility (552 g/kg) of crude protein were higher for lambs fed R:C of 40:60. The R:C ratio of 80:20 promoted a higher intake (585 g/day) and digestibility (461 g/kg) of neutral detergent fiber. There was an intake of LRC of 1.37 L/day for lambs fed R:C of 80:20 and 0.42 L/day for lambs fed R:C of 40:60. The lambs fed R:C of 80:20 spent more time in feeding (326 m/day) and rumination (530 m/day). The metabolic profile and performance of lambs were not affected by LRC inclusion. The body weight gain (220 g/day) was higher in lambs fed R:C of 40:60. A roughage:concentrate ratio of 40:60 is recommended for lambs because it resulted in the best performance, regardless of supplementation with liquid residue of cassava. 相似文献
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Esenbuga N Macit M Karaoglu M Aksakal V Yoruk MA Gül M Aksu MI Bilgin ÖC 《Tropical animal health and production》2011,43(7):1379-1384
This experiment was carried out to evaluate the ground Rosa canina seed at various levels (0%, 5%, and 15%) in barley-soybean-based concentrates offered to Morkaraman male lambs at approximately 8?months of age, on fattening performance, carcass, and meat quality characteristics. The lambs were divided into three treatment groups including R1 (concentrate without R. canina seed; n?=?12), R2 (concentrate with 5% R. canina seed; n?=?12), and R3 (concentrate with 15% R. canina seed; n?=?12) at the beginning of fattening period. The soybean meal was used as main protein source in treatment groups. All of the groups were fed a diet consisting of concentrate offered ad libitum and 300?g of grass hay per lamb per day during 60-day fattening period. The effect of diet on daily weight gain was found statistically significant. The control group had higher daily weight gain than R3 groups with 15% of ground R. canina seed. The hot carcass and cold carcass weights and dressing percentage values were affected by diets, and R3 group fed concentrate with 15% R. canina seed had higher carcass weights and dressing percentages than R1 and R2 groups. Differences among the groups in terms of leg, rib, and hindshank weights were found highly significant. While R1 and R2 groups were not significantly different, R3 group was significantly higher to R1 and R2 groups in leg, rib, and hindshank weights. In addition, meat color parameters and pH values were not affected by diets in present study. 相似文献