Question : Animal husbandry is the science of rearing, feeding and caring,breeding and disease control of animals. It ensures supplyof proper nutrition to our growingpopulation through activities like increased production and improvement of animal products like milk, eggs, meat, honey, etc. a. Poultry production depends upon the photo period. Discuss

Question : Animal husbandry is the science of rearing, feeding and car

1.	Question : Animal husbandry is the science of rearing, feeding and caring,breeding and disease control of animals. It ensures supplyof proper nutrition to our growingpopulation through activities like increased production and improvement of animal products like milk, eggs, meat, honey, etc. a. Poultry production depends upon the photo period. Discuss
Answer» Solution :(a) Light has three important FUNCTIONS in poultry farming 1. Facilities sight of birds. 2. Stimulate internal cycles due to day-length changes. 3. Initiate hormone release. Light can influence the growth, development and production of chickens. Light colour: Blue light has a CALMING effect on chickens. Blue greenlight is said to stimulate growth. Orange red light STIMULATES reproduction. Duration: New born chicks need 21-23 hours of continuous light for few days (3-4days). It should be reducedto 15-16hours bythetimethechicks are about 3 weeks old following which 10-12 hours / Natural day light length would suffice for growth & development. Intensity: The intensity of light is alsolinkedto temperature. The lamps/lights givinglight witha cooling effect is preferred over lamps which generate lot of heat. Thus PHOTOPERIOD(lengthof exposure tolight) has a impact ongrowth of chicks alongwith light colour and intensity of the incident light.