摘要
文章旨在研究基础日粮中用棉籽粕替代豆粕对育肥猪生长性能、血清生化指标及免疫功能的影响。方法将160头初始体重相近的杜长大育肥猪随机分为4组,每组5个重复,每个重复8头猪。试验根据《猪营养需要量》(GB/T 39235-2020)配制基础日粮,各组育肥猪分别以0%、5%、10%、15%棉籽粕等氮替代基础日粮中的豆粕,并记为0%棉籽粕组、5%棉籽粕组、10%棉籽粕组、15%棉籽粕组。预饲期7 d,正试期56 d。结果:(1)15%棉籽粕组育肥猪末重、平均日增重显著低于0%棉籽粕组(P<0.05),且料重比显著高于0%棉籽粕组(P<0.05)。(2)15%棉籽粕组育肥猪血清总蛋白、球蛋白含量显著低于0%棉籽粕组(P<0.05)。(3)10%棉籽粕组、15%棉籽粕组育肥猪血清IgG含量显著低于0%棉籽粕组、5%棉籽粕组(P<0.05),且肝脏指数显著低于0%棉籽粕组(P<0.05)。与0%棉籽粕组、5%棉籽粕组相比,15%棉籽粕组育肥猪肾脏指数显著降低(P<0.05)。结论:在本试验条件下,以5%、10%棉籽粕等氮替代基础日粮中的豆粕,不影响育肥猪的生长性能和血清生化指标,但以10%、15%棉籽粕等氮替代基础日粮中的豆粕会降低育肥猪的免疫功能。
This experiment aims to investigate the effects of replacing soybean meal with cottonseed meal in the basic diet on the growth performance,serum biochemical indicators,and immune function of finishing pigs.160 Duroc fattening pigs with similar initial body weight were selected and randomly divided into 4 groups,with 5 replicates in each group and 8 fattening pigs in each replicate.The experiment was conducted based on the“Nutritional Requirements of Pigs”(GB/T 39235-2020)to configure a basic diet.Each group of finishing pigs were replaced with soybean meal in the basic diet with nitrogen such as 0%,5%,10%,and 15%cottonseed meal,and were recorded as the 0%cottonseed meal group,5%cottonseed meal group,10%cottonseed meal group,and 15%cottonseed meal group.The pre trial period is 7 days,and the trial period is 56 days.Result:(1)The 15%cottonseed meal group significantly reduced the end weight and average daily gain of finishing pigs compared to the 0%cottonseed meal group(P<0.05),and the feed to weight ratio was significantly higher than the 0%cottonseed meal group(P<0.05).(2)The serum total protein and globulin content of the 15%cottonseed meal group in fattening pigs were significantly lower than that of the 0%cottonseed meal group(P<0.05).(3)The serum IgG content of fattening pigs in the 10%and 15%cottonseed meal groups was significantly lower than that in the 0%and 5%cottonseed meal groups(P<0.05),and the liver index was significantly lower than that in the 0%cottonseed meal group(P<0.05).Compared with the 0%and 5%cottonseed meal groups,the 15%cottonseed meal group significantly reduced the kidney index of fattening pigs(P<0.05).Conclusion:Under the conditions of this experiment,replacing soybean meal in the basal diet with nitrogen such as 5%and 10%cottonseed meal did not affect the growth performance and serum biochemical indicators of fattening pigs.However,replacing soybean meal in the basal diet with nitrogen such as 10%and 15%cottonseed meal would reduce the immune function of fattening pigs.
作者
李彤
黄兆洲
魏万鹏
LI Tong;HUANG Zhaozhou;WEI Wanpeng(Animal Husbandry and Veterinary Technical Service Center,Pingchuan District,Baiyin City,Baiyin,Gansu Province 730913,China)
出处
《中国饲料》
北大核心
2024年第12期85-88,共4页
China Feed
基金
白银市平川区良种猪繁育体系建设及示范推广(2023-1-9N)。
关键词
棉籽粕
豆粕
育肥猪
生长性能
血清生化指标
免疫功能
cottonseed meal
soybean meal
fattening pigs
growth performance
serum biochemical indicators
immunologic function
