Effects of low protein diets on performance of native - shanghai chickens under confinement
1990
Prachya Prachyalak | Thalearngsak Nonthanavongs (Petchaburi Animal Nutrition Research Center, Petchaburi (Thailand)) | Noppawan Chaiyanukulkitti
Effects of low protein diets on performance of Native-Shanghai chickens were studied using two hundred one-day-old chicks. The chickens were assigned to be fed with five diets consisted of diet 1) 16-14 % protein; diet 2) 14-12 % protein; diet 3) 12-10 % protein; diet 4) 14-14 % protein and diet 5) 12-12 % protein until 14 weeks of age. The performances of the chickens on these five diets were as follows : average daily gain 14.85, 12.65, 10.22, 13.75 and 12.25 grams/day; average feed intake 5,321, 4,810, 4,185, 5,009 and 4,648 grams; and feed conversion ratio 3.66, 3.88, 4.18, 3.71 and 3.87, respectively. The results showed that the chickens fed diet 1 (16-14 % protein) had the best average daily gain, feed conversion ratio and made more profit than other groups. However, the average daily gain and feed conversion ratio of the chickens fed diet 4 (14-14 % protein) were not significantly different from group one.
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