Performance of Vanaraja dual purpose birds under Mizoram agro climatic conditions

A. Kumaresan, K.A. Pathak, S.K. Ahmed and Bijoy Chhetri
ICAR Research complex for NEH Region
Mizoram centre, Kolasib, Mizoram - 796 081

“Vanaraja” birds (developed by Project Directorate on Poultry, Hyderabad) have been recently introduced in Mizoram by ICAR under NATP- Jai Vigyan - Poultry Programme. To assess the performance of these birds under Mizoram agro climatic conditions, a systematic study was conducted in nursery as well as field conditions. A total number of 3138 Vanaraja chicks were reared in nursery up to six weeks and then distributed to farmers for rearing under backyard conditions. The weekly body weight, feed consumption and mortality pattern were recorded. The weight gain of chicks was assessed based on the weekly body weight. The average weight of day old chick was found to be 36.58 g. The average body weight of Vanaraja chicks at 2 nd, 4 th and 6 th week was 141.60, 360.87 and 625.42 g, respectively. The average FCR was found to be 2.58. At backyard, the birds were allowed to scavenge outside in the field from morning to evening and then housed during nighttime in bamboo cages or houses. Supplements like broken grains, raw or boiled rice and left over/kitchen waste from house are offered to birds. In the field conditions, the average age and weight at laying was 20-22 weeks and 2.8-3.45 kg, respectively. Number of eggs laid by per bird in 30 days was found to be 16-20. Hatchability of eggs under natural brooding was 75 - 80 %, but the ability of Vanaraja birds to brood was found to be less. Hence, many of the farmers practice hatching of Vanaraja eggs with desi hens. The body weight gain of distributed birds was found to be higher under field conditions when supplemented with little concentrate feed. The average body weight at 18 months was found to be 4.5±0.58 and 3.57± 0.78 kgs, for little concentrate feed supplemented group and only scavenging group, respectively. The results on egg and chicken consumption pattern revealed that 31.85 % of eggs and 29.60 % of chicken were utilized for home consumption; where as 68.15 % of eggs and 70.40 % of chicken were sold to others/market.

Source : IPSACON-2005

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