饲料加工方式对猪饲料营养价值和生产性能的影响

IMPACT OF DIFFERENT PROCESSING TECHNOLOGY ON FEED NUTRITION VALUE AND PERFORMANCE OF PIGS

用 36头 15kg左右的长×荣F1肉猪 ,通过饲养试验和消化试验研究粉料日粮 (处理 1)、膨化粉料日粮 (处理 2 )、制粒日粮 (处理 3)和膨化制粒日粮 (处理 4 )对 15— 90kg生长育肥猪生产性能和养分消化率的影响。结果显示 :处理 2、3、4日增重比处理 1分别提高 3.98%、1.4 9%和 8.96 % ;饲料利用率分别改进了 8.35 %、6 .0 8%和 13.4 2 % ;干物质表观消化率分别提高了 4 .72 % (P <0 .0 5 )、- 1.6 9% (P >0 .0 5 )和 4 .83% (P <0 .0 5 ) ;粗蛋白质分别提高了 3.94 %、2 .2 9%和 1.6 8% ,差异均不显著 (P >0 .0 5 ) ;粗脂肪分别提高了 2 6 .2 2 % (P <0 .0 1)、4 3.89% (P <0 .0 1)和 4 4.2 6 % (P <0 .0 1) ;粗纤维表观消化率分别提高了 2 1.86 % (P <0 .0 1)、11.5 2 % (P <0 .0 5 )和 2 2 .0 1% (P <0 .0 1) ;每头猪节约饲料成本 2 1.0 0元、17.2 5元和 34.5 0元。表明饲粮制成颗粒料的饲养效果明显优于粉状料 。

Landrace×Rongchang F 1 market pigs(about 15 kg) were selected to test the effect of different feed processing technology on 15-90 kg growing-finish pig performance and nutrients digestibility by means of feeding and digest test including powder feed (groupⅠ), expanded powder feed (groupⅡ), pellet feed (group Ⅲ) and expanded pellet feed (groupⅣ).The results showed:1.Compared with groupⅠ, daily gain of groupⅡ, Ⅲ and Ⅳ increased by 3.98%, 1.49% and 8.96% respectively; 2.feed avalability improved by 8.35%, 6.08% and 13.42% respectively; 3.dry matter digestibility increased by 4.72%(p<0.05), -1.69%(p>0.05) and 4.83%(p<0.05); crude protein digestibility increased by 3.94%, 2.29% and 1.68%, difference is not significant(p>0.05), crude fat digestibility increased by 26.22%(p<0.01), 43.89%(p<0.01) and 44.26%(p<0.01); crude fiber digestibility increased by 21.86%(p<0.01),11.52%(p<0.05) and 22.01%(p<0.01). 4. feed cost/per animal decreased 21.00, 17.25 and 34.50 yuan. It reveals that pellet feed is markedly superior to mash feed and the expansion of feed provides additional effect.