Effects of dietary supplementation with Candida krusei on production performance, immune function and ammonia nitrogen emission in broilers
文献类型： 外文期刊
作者： Jia, Rui 1 ; Gu, Hongxia 1 ; Li, Jiaju 2 ; Zheng, Aijuan 1 ; Chen, Zhimin 1 ; Chang, Wenhuan 1 ; Liu, Guohua 1 ;
作者机构： 1.Chinese Acad Agr Sci, Key Lab Feed Biotechnol, Minist Agr & Rural Affairs, Inst Feed Res, Beijing, Peoples R China
2.Chia Tai Enterprises Int Ltd Co, Hong Kong, Peoples R China
关键词： Candida krusei; broiler; production performance; immune function; ammonia nitrogen emission
期刊名称：ITALIAN JOURNAL OF ANIMAL SCIENCE （ 影响因子：2.3； 五年影响因子：2.4 ）
ISSN： 1594-4077
年卷期： 2025 年 24 卷 1 期
页码：
收录情况： SCI
摘要： This study aimed to investigate the effects of dietary graded levels of Candida krusei on growth performance, slaughter performance, immune function, nitrogen metabolism and ammonia nitrogen emission of broilers. A total of 240 1-day-old AA broiler chickens were randomly divided into 4 groups with 6 replicates of 10 broilers each. The control group (CK) was fed a basal diet, and treatment groups were supplemented with 1.0 x 10(8) CFU/kg (LSAL), 1.0 x 10(9) CFU/kg (LSAM) and 1.0 x 10(10) CFU/kg (LSAH) of Candida krusei in basal diet, respectively. The results indicated that LSA significantly improved the average daily gain and average daily feed intake of broilers during d 1-21 (p < 0.001). Compared to the CK group, the LSAH group significantly exhibted a higher eviscerated carcase weight rate, and lower abdominal fat rate (p < 0.05). Blood concentrations of urea nitrogen, uric acid and ammonia significantly decreased with increasing Candida krusei levels(p < 0.05). Furthermore, Candida krusei significantly reduced ammonia nitrogen content in the excreta (p < 0.001). In conclusion, dietary supplementation with Candida krusei can improve the growth performance, slaughter performance and nitrogen metabolism of broilers, and also mitigate the ammonia nitrogen emission, which suggests that Candida krusei is a potential probiotic additive in chickens. When supplemented to diet of broilers, 1.0 x 10(10) CFU/kg Candida krusei was recommended.
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