INFLUENCE OF ENERGY LEVEL AND PARTICLE SIZE OF FEED ON PRODUCTION PERFORMANCE OF ATHULYA LAYER CHICKEN

Simple item page
dc.contributor.advisorP. Anitha
dc.contributor.authorBINOJ CHACKO
dc.date.accessioned2023-01-06T11:39:48Z
dc.date.available2023-01-06T11:39:48Z
dc.date.issued2015-12-30
dc.descriptionSubmitted in partial fulfillment of requirement for the degree of DOCTORof Philosophy in Poultry Scienceen_US
dc.description.abstractAn experiment was carried out in Athulya layer chicken (Single Combed White Leghorn) from 17 to 64 weeks of age to evaluate the influence of ME levels (2200, 2400 and 2600 kcal/kg) and particle size (3.0, 5.0 and 7.0 mm) of feed on production performance, nutrient utilization and economics in a 3x3 factorial design. There were nine experimental diets and each diet was fed to five replicate groups constituted 10 birds each. All experimental diets were identical in calorie protein ratio as per BIS, 1992 specifications. The hen housed and hen day egg production from 17 to 64 weeks of age were comparable among birds fed diet containing different levels of ME and particle size. Daily feed intake and FCR was significantly (p<0.000) lower in birds fed diet containing ME level of 2600 kcal/kg than in birds fed diet with lower ME levels (2400 and 2200 kcal/kg). The effect of particle size of feed was not significant for daily feed intake and FCR. The egg weight and egg shell thicknesses of birds were not influenced by either dietary ME levels or particle size from 17 to 64 weeks of age. The body weight and body weight gain at 40 and 64 weeks of age was significantly (p<0.05) higher in birds fed diet containing ME level of 2600 kcal/kg than in birds fed diet containing lower ME levels (2400 and 2200 kcal/kg). The effect of particle size of feed was not significant for body weight and body weight gain at 40 and 64 weeks of age. The livability of birds was not influenced by either dietary ME levels or particle size from 17 to 64 weeks of age. The birds fed diet containing lower ME level of 2200 and 2400 kcal/kg had significantly (p<0.05) lower dry matter, gross energy, zinc and manganese utilization than birds fed on 2600 kcal/kg diet. The crude protein, crude fat, total ash, phosphorus and copper utilization were comparable among birds fed diet containing different levels of dietary ME. The birds fed diet containing lower ME level of 2200 kcal/kg had significantly (p<0.00) lower calcium utilization than birds fed diets containing higher dietary ME levels of 2400 and 2600 kcal/kg. The calcium utilization was significantly (p<0.016) higher in birds fed feed particle sizeen_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810191406
dc.keywordsPRODUCTION PERFORMANCE OF ATHULYA LAYER CHICKEN, ENERGY LEVEL AND PARTICLE SIZE OF FEED, CLIMATIC PARAMETERS, EGG PRODUCTION , Metabolizable Energy (ME) , FEED INTAKE , FEED CONVERSION RATIO , EGG WEIGHT, SHELL THICKNESS, LIVABILITY, NUTRIENT UTILIZATION, MINERAL UTILIZATION, ABDOMINAL FAT AND PROCESSING YIELDS, DIGESTIVE TRACT WEIGHT AND LENGTH, HISTOLOGICAL EXAMINATION, SERUM LIPID PROFILE , Feed conversion ratio (FCR), Egg weight, SLAUGHTER STUDY PARAMETERS, Abdominal fat and processing yields , Digestive tract measurements,en_US
dc.language.isoEnglishen_US
dc.pages187 p.en_US
dc.publisherCOLLEGE OF VETERINARY AND ANIMAL SCIENCES MANNUTHY, THRISSURen_US
dc.research.problemTo determine the influence of energy level and particle size of feed on production performance and nutrient utilization of Athulya layer chicken , To evaluate the economics of different energy level and particle size in layer dieten_US
dc.subPoultry Scienceen_US
dc.themeENERGY LEVEL AND PARTICLE SIZE OF FEED ON PRODUCTION PERFORMANCE OF ATHULYA LAYER CHICKENen_US
dc.these.typePh.Den_US
dc.titleINFLUENCE OF ENERGY LEVEL AND PARTICLE SIZE OF FEED ON PRODUCTION PERFORMANCE OF ATHULYA LAYER CHICKENen_US
dc.typeThesisen_US
Files
Collections
Thesis