The effect of YeaSense instead of Enramycin on growth performance of broilers
March 27th, 2020
By Xiangqian Xiao
240 1-day-old New-born yellow feather broilers were randomly divided into 4 treatment groups with 6 replicates per treatment and 10 chickens per replica. The control group (4% Enramycin) was added with Enramycin 250 g / t, and the test group was treated with YeaSense 250 g / t、500 g / t、1000 g / t. The growth performance of each treatment group was compared. In view of the effect of substitution of enramycin, the dosage of YeaSense suggested 250g/t.
1 Experimental design
240 1-day-old New-born yellow feather broilers were randomly divided into 4 treatment groups, each treated with 6 replicates, 10 chickens per replica. The formula of basic diet is referred to NY/T 33-2004. The corn-soybean meal diet is adopted.
Table 1 Experimental design
basic diet +250g/t Enramycin（4%）
basic diet +250g/t YeaSense
basic diet +500g/t YeaSense
basic diet +1000g/t YeaSense
2 Feeding and management
During the experiment, the feeding and management were carried out according to the routine: cage feeding, free feeding and drinking water. The henhouse temperature was controlled at 32 ℃ -35 ℃ at 1 week old, 29 ℃ -32 ℃ at 2 weeks of age at 65 -75 ℃, and 60 -70 ℃ at 60 ~ 70 ℃. The age of 3 weeks was 26 ℃ -29 ℃, the humidity of 55-60 ℃ was controlled at room temperature for 4 weeks, and the drug health care was done in 1-3 days to prevent Escherichia coli and Salmonella.
3 Test methods and indicators
Record weight, feed intake, FCR
4 Statistical analysis
All data were sorted by excel 2010 after the initial order and analysed using SPSS 21.0 (2015, IBM-SPSS Inc., Chicago, Illinois, USA). Variability of all the data was expressed as standard error of the mean (SEM). Differences between mean values were compared using independent samples T-test, and considered signiﬁcant at P < 0.05. Trends were identified when 0.05 < P < 0.10.
Table 2 Effect of YeaSense replace Enramycin on weight of broliers at 42d (g)
Note：In this experiment, the feed is powdered, so the feed intake and daily gain are lower than those of granular feed. a,b Within a column, means with different superscript letters are different (P < 0.05).
In view of the effect of substitution of Enramycin, YeaSense suggested that 250g/t should be added.
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