- Volume 18 Issue 5
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Relationship between Intersequence Pauses, Laying Persistency and Concentration of Prolactin during the Productive Period in White Leghorn Hens
- Reddy, I.J. (National Institute of Animal Nutrition and Physiology) ;
- David, C.G. (National Institute of Animal Nutrition and Physiology) ;
- Singh, Khub (National Institute of Animal Nutrition and Physiology)
- Received : 2004.09.22
- Accepted : 2004.12.27
- Published : 2005.05.01
Prolactin is considered to influence the taking of pauses in between ovulatory sequences in White Leghorn hens. Therefore modulating concentrations of prolactin using bromocriptine - a dopamine agonist during early life (17 to 36 weeks of age) could overcome the inhibitory effects of high concentration of prolactin on ovarian activity. The effect of modulation of prolactin concentration on egg production, sequence length and inter sequence pauses were studied by analyzing the oviposition records from 19 to 72 weeks were studied and compared with untreated controls. Bromocriptine administered subcutaneously (100
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