不同能量水平日粮对深县猪生长性能、养分消化率和血液生化指标的影响
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摘要
为了研究不同消化能水平日粮对深县猪生长性能、养分消化率和血液生化指标的影响,选用体重(15. 54±2. 25) kg的健康深县猪48头,随机分成3组,每组4个重复,每个重复4头猪,试验Ⅰ、Ⅱ、Ⅲ组饲粮消化能水平分别为11. 20、11. 70、12. 20 MJ/kg,预试期7 d,正式期28 d。结果显示:试验Ⅲ组的平均日增重显著高于试验Ⅰ组15. 56%(P<0. 05),试验Ⅲ组的料重比(F/G)显著低于试验Ⅰ组(P<0. 05);试验Ⅲ组粗蛋白、总能与粗脂肪表观消化率均显著高于试验Ⅰ组9. 89%、7. 29%、7. 21%(P<0. 05)。综合各项指标,在本试验条件下,生长期深县猪适宜的消化能水平为12. 20 MJ/kg。
In order to study the effects of different dietary energy levels on growth performance,nutrient digestibility and blood biochemical parameters of pigs,84 healthy Shenxian pigs,with the initial weight of( 15. 54±2. 25) kg were selected and were randomly divided into four groups with four replicates and four pigs per replicate. The test groups Ⅰ,Ⅱ and Ⅲ were treate with the dietary energy levels of 11. 20,11. 70 and 12. 20 MJ/kg,respectively. The study consisted a pre-trial of 7 d and a formal trial of was 28 d. The results showed that the ADG of Group Ⅲ was decreased by 15. 56%( P<0. 05),their feed/gain ratio was significantly lower than that of Group Ⅰ( P<0. 05); and their apparent digestibility of crude protein,total energy and crude fat were all significantly higher than those Group Ⅰ by 9. 89%、7. 29%、7. 21%( P<0. 05),respectively. It could be concluded that the appropriate dietary energy level of Shenxian pigs was 12. 20 MJ/kg.
In order to study the effects of different dietary energy levels on growth performance,nutrient digestibility and blood biochemical parameters of pigs,84 healthy Shenxian pigs,with the initial weight of( 15. 54±2. 25) kg were selected and were randomly divided into four groups with four replicates and four pigs per replicate. The test groups Ⅰ,Ⅱ and Ⅲ were treate with the dietary energy levels of 11. 20,11. 70 and 12. 20 MJ/kg,respectively. The study consisted a pre-trial of 7 d and a formal trial of was 28 d. The results showed that the ADG of Group Ⅲ was decreased by 15. 56%( P<0. 05),their feed/gain ratio was significantly lower than that of Group Ⅰ( P<0. 05); and their apparent digestibility of crude protein,total energy and crude fat were all significantly higher than those Group Ⅰ by 9. 89%、7. 29%、7. 21%( P<0. 05),respectively. It could be concluded that the appropriate dietary energy level of Shenxian pigs was 12. 20 MJ/kg.
引文
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[3]张丽英.饲料分析及饲料质量检测技术[M]. 3版.北京:中国农业大学出版社,2007.
[4]何若钢,张家富,江永强,等. 15~30 kg陆川猪能量和粗蛋白质水平的研究[J].猪业科学,2013(3):126-128.
[5]唐松元,李立,段文武,等.不同能量水平日粮对豪猪生长性能及血液生化指标的影响[J].经济动物学报,2014(3):133-138.
[6] Kerr B J,Southern L L. Influence of dietary protein level,amino acid supplementation and die tary energy level son growing-finishing pig performance and carcass composition 1[J]. J Animal Sci,2003,81:3075-3087.
[7]杨凤.动物营养学[M]. 2版.北京:中国农业出版社,2005:89.
[8]尹慧红,张石蕊,孙建广,等.不同净能水平的低蛋白日粮对猪生长性能和养分消化率的影响[J].中国畜牧杂志,2008(13):25-28.
[9]周勤飞,王永才,王金勇,等.能量水平对生长猪生产性能、养分消化率和血清生化指标的影响[J].中国畜牧杂志,2010(23):44-47.
[10]杨小婷.饲粮蛋白、能量和纤维水平对圩猪生产性能、肉质和血清生化指标的影响[D].合肥:安徽农业大学,2013.