Wang Li, Gao Wenjun, Shi Huangwei, Hu Qile, Lai Changhua
State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
Animals (Basel). 2022 Jun 28;12(13):1667. doi: 10.3390/ani12131667.
The inclusion of high-quality proteins is commonly used in swine production, especially in weaned pigs. Our research investigated the effects of replacing fishmeal (FM) and soybean protein concentrate (SPC) with degossypolized cottonseed protein (DCP) on the growth performance, nutrient digestibility, intestinal morphology, cecum microbiota and fermentation in weaned pigs. A total of 90 pigs were used in a 4-week trial. Pigs were randomly assigned to three dietary treatments (initial BW 8.06 ± 0.26 kg; six pigs per pen; five pens per treatment), including a basal diet group (CON) with a 6% SPC and 6% FM; two experimental diets group (SPCr and FMr) were formulated by replacing SPC or FM with 6% DCP, respectively. There were no differences in growth performance and diarrhea rate among three treatments except for the ADFI during day 14 to day 28. Using the DCP to replace FM would weaken the jejunum morphology and decrease the nutrient digestibility of pigs during day 0 to day 14. However, replacing FM with DCP can improve the community structure of cecum microbiota, and may relieve these negative effects. In conclusion, DCP can be used as a cost-effective alternative protein supplement.
在养猪生产中，尤其是断奶仔猪的饲养中，通常会添加优质蛋白质。我们的研究调查了用脱毒棉籽蛋白（DCP）替代鱼粉（FM）和大豆浓缩蛋白（SPC）对断奶仔猪生长性能、养分消化率、肠道形态、盲肠微生物群和发酵的影响。在一项为期4周的试验中，共使用了90头猪。将猪随机分为三种日粮处理组（初始体重8.06±0.26千克；每栏6头猪；每个处理5栏），包括一个基础日粮组（CON），含有6%的SPC和6%的FM；两个试验日粮组（SPCr和FMr），分别用6%的DCP替代SPC或FM。除了第14天至第28天的平均日采食量（ADFI）外，三种处理在生长性能和腹泻率方面没有差异。在第0天至第14天期间，用DCP替代FM会削弱空肠形态并降低猪的养分消化率。然而，用DCP替代FM可以改善盲肠微生物群的群落结构，并可能减轻这些负面影响。总之，DCP可作为一种经济高效的替代蛋白质补充剂。
