This research was carried out to investigate the effects of Bacillus megaterium 1259(BM1259) contrast with Yucca and Bacillus subtillis on performance and the content of ammonia nitrogen in excrement of laying hens. A total of three hundred and eighty four 300-day-old healthy Hy-line variety brown laying hens with similar laying rate were selected and randomly assigned into four groups with six replicates per group and sixteen hens per replicate. Birds in the control group were fed a basal diet, and the others in experimental groups were fed the basal diet supplemented with 100 mg/kg BM1259, Yucca and Bacillus subtillis, respectively. The preliminary period lasted for 14 days and the experiment lasted for 42 days. The results showed as follows:1) compared with the control group, the total egg mass, egg production, laying rate and average egg weight in BM1259 group were significantly increased (P<0.01), and the feed to egg ratio was significantly decreased (P<0.01), which was similar to Bacillus subtillis group, better than Yucca group. 2) Compared with the control group, the ammonia nitrogen, usea nitrogen and uric acid contents and uricase activity in BM1259 group were significantly decreased (P<0.01), which was similar to Yucca group, better than Bacillus subtillis group. 3) Dietary supplanted with BM1259 had more profit than Yucca and Bacillus subtillis in this study. In conclusion, dietary supplemented with BM1259 can improve performance, increase profit and better remove ammonia nitrogen and odor in the excrement of laying hens.
DING Wenjun
,
WANG Qiang
,
DAI Meimei
,
ZHANG Weili
,
ZHANG Yanyun
. Effects of Bacillus megaterium 1259 Contrast with Yucca and Bacillus subtillis on Performance and Ammonia Nitrogen Content in Excrement of Laying Hens[J]. Chinese Journal of Animal Nutrition, 2016
, 28(5)
: 1566
-1572
.
DOI: 10.3969/j.issn.1006-267x.2016.05.034
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