Indian Journal of Animal Research
Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)
Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)
Effect of season on growth and reproduction performance of improved backyard poultry in North Eastern Hill Region
Submitted22-02-2016|
Accepted09-03-2017|
First Online 06-09-2017|
A study was undertaken to evaluate the seasonal influence on performance of Vanaraja (n=3924) and Gramapriya (n=2227) maintained in five different batches during 2011-14. Better growth was observed in summer during brooding. At brooding, mortality was significantly higher during winter in Vanaraja and during summer in Gramapriya. The egg production was higher when birds started laying in winter than in summer. The overall Hen Day Egg Production (HDEP) was higher in Vanaraja (p<0.01) than the Gramapriya. The fertility level varied between 68 to 90% in both varieties. The hatchability percentage on fertile egg set (FES) varied within the range of 70 to 90. It was concluded that better egg production performance could be obtained from Vanaraja birds, raised in summer and those initiated laying in winter. Therefore, the seasonal factors should be taken care of while raising parent line to achieve optimum production.
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