摘要
本研究选用１８头２８±１日龄断奶的杂交仔猪（平均体重约５．５ｋｇ），研究低蛋白质氨基酸平衡饲粮对早期断奶仔猪腹泻和生产性能的影响。试验结果显示：（１）低蛋白质氨基酸平衡饲粮使仔猪血浆挥发性盐基氨含量、血浆尿素氨含量和腹泻指数降低（Ｐ＜０．０５或０．０１）。（２）采食全植物蛋白型氨基酸平衡饲粮（ＣＰ１８．３％）的仔猪，其平均日增重（ＡＤＧ）、平均日采食量（ＡＤＦＩ）和料肉比（Ｐ／Ｇ）与采食复合蛋白型对照饲粮（ＣＰ１９．７％）的仔猪差异不显著（Ｐ＞０．０５），但前者的增重成本比后者降低（Ｐ＜０．０５）３１％。（３）采食复合蛋白型氨基酸平衡饲粮（ＣＰ１８．４％）的仔猪的生产性能优于采食复合蛋白型对照饲粮（ＣＰ１９．７％）的仔猪，前者的ＡＤＧ和ＡＤＦＩ分别提高（Ｐ＜０．０５）６１％和３２％，Ｆ／Ｇ和增重成本分别下降（Ｐ＜０．０５）２４％和３７％。（４）采食全植物蛋白型氨基酸平衡饲粮的仔猪，其ＡＤＧ和ＡＤＦＩ低于（Ｐ＜０．０１）采食复合蛋白型氨基酸平衡饲粮的仔猪。前者的Ｆ／Ｇ和增重成本趋于高于后者，但差异不显著（Ｐ＞０．０５）。以上结果表明，低蛋白质氨基酸平衡饲粮可显著降低仔猪断奶后腹泻和提高仔猪生产性能。复合蛋白型?
Eighteen crossbred pigs weaned at 28±1 days of age and average of 5.5kg bodyweight were used to investigate.The results showed,(1)A A-balanced,low CP diets wereeffective(P<0.05 or 0.01) to reduce the diarrhoea score and the contents of plasma volatile basic nitrogen and urea nitrogen.(2) Pigs fed the A A-balanced all-plant protein diet(ABAPD,CP18.3%)hada similar(P>0.05) average daily gain(ADG),average daily feed intake(ADFI) and feed/gain ratio(F/G)as those fed the complex-protein control diet (CPCD,CP19.7%),However,the body weight gain cost (BWGC)of the former decreased (P<0.05) by 31%.(3)Pigs fed the A A-balanced complex-protein diet (APCPD,CP18.4%)exhibited a Superior performance,compared with those fed the CPCD.The ADG and ADFI of the formerin creased (P<0.05)by 61%and 32%,respectively;and the F/Gand BWGC decreased(P<0.05)by24%and 37%,respectively.(4)Pigs fed the ABAPD had a lower (P<0.01)ADG and ADFI thanthose fed the ABCPD, but their F/G and BWGC were not significantly different(P>0.05).The resultssuggest that the dietary AA balance with CP reduction efficiently reduce the incidence of diarrhoea andimprove the performance of early-weaned pigs,and the ABCPD is superior to the ABAPD.
出处
《中国畜牧杂志》
CAS
北大核心
1995年第4期11-13,共3页
Chinese Journal of Animal Science
关键词
蛋白质
氨基酸
仔猪
腹泻
生产性能
早期断奶
protein level amino acid balance diarrhoea performance early-weaned pig
