EFFECT OF PULLETS WEIGHT AT HOUSING TIME ON PERFORMANCE OF SOME LOCAL BREEDS OF CHICKEN AS LAYING HENS | ||
| Egyptian Journal of Agricultural Research | ||
| Article 27, Volume 82, Issue 1, March 2004, Pages 327-341 PDF (3.2 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejar.2004.256807 | ||
| Authors | ||
| LAYLA M. A. GOHER; MOHAMED A. ABDEL-GALIL; MAHMOUD H. ABDEL-SAMAD | ||
| Animal production Research Institute, Agricultural Research Centre, Ministry of Agriculture, Dokki, Giza, Egypt | ||
| Abstract | ||
| This experiment was carried out at Sids Poultry Research Station. Animal Production Research Instituent. Monistry of Agriculture. The aim of this work was to study the effect of pullets weight at housing time on the performance of some local breeds of chickens as laying hens. 243 hens from three local breeds of chicken. Dokld4 (Dk). Gimmiza (Gm) and Dandarawi. Dn (81 hens/breed) at 18 weeks of age were used in the experiment, the hens were diveded according to their body weight into three groups (high, medium and low body weight) and we obtained data to age of 90 day egg production. Results can be summeriezed as f01, lows: There were significant differences among breeds in body weight at 18 weeks of age and age at sexual maturity. However, the differences between different weight groups in each breed were not significant. The heavier hens of Gm reached sexual maturity later than both Dk or Dn. The medium body weight hens for the different breeds had more egg number and egg mass than both low or high body weight. There were no significant differences between different breeds in respect of feed consumption, but within breed hens with high body weight were consumed more feed than both medium or low body weight hens Dk hens with medium weight were more effident for feed conversion than other groups. Dn hens had insignificant high fertility and hatchability pecentages than both Gm and Dk hens. The eggs produced from hens with medium body weight of Ok and Dn breeds had high hatchability % than of low or high weights. The weight of eggs produced from high body weight hens in different breeds were higher than those from low or medium body weight hens. There were non significant differences between different groups of weight for different breeds in respect of yolk index, haugh unit and albumen index. | ||
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