Effects of Dietary Protein Level on Egg Production and Hatchability in Japanese Quail(Coturnix japonica) in Khartoum State, Sudan
Keywords:
Protein level, egg production, Japanese quails, Performance, SudanAbstract
The influence of dietary protein level on Japanese quails feed intake and egg production was studied for 6 weeks in Khartoum State, Sudan. One hundred and eighty 65day old birds with an average body weight 157g,of Japanese quail breed were divided randomly into three dietary treatments (60 birds /treatment)with four replicates of fifteen birds each(ten females and five males). Average minimum and maximum temperatures during the experimental period were 26.1â—¦C and 38.9 â—¦C, respectively. Parameters measured were feed intake, feed conversion ratio, egg production, mortality rate and hatchability. Three dietary treatments were used in this study which contained three different protein levels (20%, 22% and 24% for treatments A, B and C, respectively). All nutrients were calculated to meet the USA National Research Council Requirements (NRC, 1994) for Japanese quails.
The results indicate that feed consumption was not affected by protein level, except for the six week where treatment A was significantly (P<0.05) highest compared to other treatments. Feed conversion ratio ranged between 3.5-5.7 and the best feed conversion ratio was found in treatment B Â .Generally, egg production was highest in treatment B but the difference was not reach the significant level. Dietary protein level had no effect on egg weight and hatchability. Dietary protein level 22% was considered to be the best level under Sudan condition.
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