Stimulation of egg production in Thai indigenous chickens by separation of the hen from her brood
1999
Kriangkrai Choprakan (Ubon Ratchathani Univ., Ubon Ratchathani (Thailand). Faculty of Agriculture. Department of Animal Sciences)
Study was conducted to increase egg production in Thai Indigenous Chickens (TIC) by proper management and to find a practical management method for Thai farmers to increase egg production. Number of clutched were recorded from 20 pairs of female TIC, 6-8 months of age. Each pair was placed with an 8-12 months old cockerel. One of the hens in each group was separated from her brood when they were two weeks of age after hatching (modified system). The other hen and her brood were raised by the conventional system. The intervals between clutches in the conventional system were significantly (P0.01) longer than the modified system (100 vs.66 days), and the numbers of clutches per hen per year were significantly lower (3.6 vs.5.5). The modified system was introduced to small-scale farmers in Khon Kaen, Maha Sarakram and Nakorn Ratchasima provices in Thailand. The data showed that under the modified system one hen could produce 5.1 clutches and 11.1 eggs per clutch or 56.6 eggs per year. Hatching rate, on average, was 80.3 percent and a hen could produce 45 baby chicks annually.
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Эту запись предоставил Kasetsart University