Comparative Assessment of Fertility and Hatchability of Barred Plymouth Rock, White Leghorn, Rhode Island Red and White Rock Hen
2002; Asian Network for Scientific Information; Volume: 1; Issue: 4 Linguagem: Inglês
10.3923/ijps.2002.85.90
ISSN1994-7992
AutoresM. S. Islam, M. A. R. Howlider, F. Kabir ., Jahangir Alam,
Tópico(s)Livestock and Poultry Management
Resumo2 Abstract: A total of 3000 eggs; 750 eggs from each breed namely Barred Plymouth Rock (BPR),White Leghorn (WLH), Rhode Island Red (RIR) and White Rock (WR) were collected in 3 batches following AI from individually caged hens and were hatched to compare hatching parameters among breeds. The different hatchability traits of hen of different breeds; BPR, WLH, RIR and WR we re compared. Hatching egg weight had no significant (P>0.05) difference among 4 genotypes. Fertility was highest in WLH, intermediate in WR and lowest and similar in BPR and RIR (P 0.05), but it differed among batches (P 0.05) difference in dead in germs (DG) and dead in shell (DS) were found attributable to genotype, but DG and DS differed significantly(P 0.05). Chick weight at hatching was highest (P 0.05) difference in batches. There were some correlations among different hatchability traits depending on genotype within breed. The correlations were more profound among WLH. It was clear that chick weight as per cent of egg weight was not just a function of egg weight, but also genotype played an important role favouring the heavier breeds.
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