The effect of sorghum based feed on the growth performance,meat quality,and economic benefits of broiler chickens
This experiment aims to investigate the effects of sorghum based feed on the growth performance,meat quality,and economic benefits of broiler chickens.600 22 day old white feathered broiler chickens with similar initial weight[(823.47±36.52)g]were selected and randomly divided into 4 groups.The control group was fed with basic diet according to the GB/T5916-2020 for laying hens and broilers,while the other 3 groups were replaced with corn in the basic diet with 33.33%,66.67%,and 100.00% sorghum,with 5 replicates in each group and 30 chickens in each replicate.The experiment lasted for 21 days.The results showed that:(1)With the increase of sorghum substitution level,the average daily weight gain of broilers first increased and then decreased,and the feed to weight ratio first decreased and then increased.Among them,the 33.33% sorghum group had the best growth performance indicators for broiler chickens,but there was no significant difference compared to the control group(P＞0.05).Compared with the control group,the average daily weight gain of broiler chickens in the 100.00% sorghum group significantly decreased by 9.31% (P＜0.05),and the feed to weight ratio significantly increased by 8.79% (P＜0.05).(2)There was no significant difference in meat quality indicators between the 33.33% sorghum group and the control group(P＞0.05).Compared with the control group,the redness a* and yellowing b* of the 66.67% sorghum group and the 100.00% sorghum group were significantly reduced(P＜0.05),and the 24-hour drip loss and water loss rate were significantly increased(P＜0.05).(3)From the dimension of repeated groups,compared with the control group,the gross profit of the 33.33% sorghum group increased by 9.61 yuan(P＞0.05),while the gross profit of the 66.67% sorghum group and the 100.00% sorghum group decreased by 53.27 yuan(P＞0.05)and 110.89 yuan(P＜0.05),respectively.It can be seen that the low substitution level of sorghum for corn(33.33% )has no negative impact on the growth performance and meat quality of broilers,and improves economic benefits.The medium to high substitution level of sorghum for corn(66.67%,100.00% )has a negative impact on the growth performance,meat quality,and economic benefits of broilers.Therefore,the suitable substitution level of sorghum for corn in broiler feed is 33.33% .
sorghum based feedbroiler chickengrowth performancemeat qualityeconomic benefit
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