Effect of different energy to protein ratiosindiet and varying levels of cassava and copra meals at 1 to 21 days of age on the subsequent meat production performance of f1 mia x luong phuong chicken

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EFFECT OF DIFFERENT ENERGY TO PROTEIN RATIOS IN DIETS AND VARYING LEVELS OF CASSAVA AND COPRA MEALS AT TO 21 DAYS OF AGE ON THE SUBSEQUENT MEAT PRODUCTION PERFORMANCE OF F1 MIA × LUONG PHUONG CHICKEN A Dissertation Presented to the Faculty of the Graduate Studies and Applied Research College of Agriculture LAGUNA STATE POLYTECHNIC UNIVERSITY Siniloan, Laguna Philippines In Partial Fulfilment of the Requirements for the Degree Doctor of Philosophy in Agriculture Major in Animal Science NGUYEN THI BICH DAO December, 2017 i Republic of the Philippines LAGUNA STATE POLYTECHNIC UNIVERSITY Siniloan, Laguna Integrity, Professionalism and Innovation COLLEGE OF AGRICULTURE GRADUATE STUDIES AND APPLIED RESEARCH This dissertation entitled “EFFECT OF DIFFERENT ME TO PROTEIN RATIOS IN DIETS AND VARYING LEVELS OF CASSAVA AND COPRA MEALS AT TO 21 DAY OF AGE ON THE SUBSEQUENT MEAT PRODUCTION PERFORMANCE OF F1 (MIA × LUONG PHUONG) CHICKEN” prepared by MRS NGUYEN THI BICH DAO in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Agriculture, major in Animal Science has been examined and recommended for acceptance and approval NESTOR M DE VERA, Ph.D Adviser TRAN THANH VAN, Ph.D Co-Adviser PANEL OF EXAMINERS Approved by the committee on Oral Examination with the grade of NESTOR M DE VERA, Ph.D Chairman LOLITA L BEATO, Ph.D Member ROBERT C AGATEP, Ph.D Member LOLITA D VIYAR, Ph.D Member VINCENT BRYAN C CASIMERO, DVM Member Accepted and approved in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Agriculture, major in Animal Science LOLITA L BEATO, Ph.D Dean, Graduate Studies & Applied Research MA GRACIELA C PRADILLADA, R G C University Registrar III Research Contribution No Passed the Comprehensive Examination ii ACKNOWLEDGMENT The author wishes to express her gratitude to all the people who have helped her to accomplish this dissertation and also made her college life very colorful First of all, her sincerest thanks is extended to her adviser President Dr Nestor M de Vera, for his intellectual insights, valuable advice, constant encouragement, and hospitality Grateful acknowledgment is extended to Dr Tran Thanh Van, Co-adviser for her constructive suggestions Heartfelt thanks to the members of her advisory committee: Dr Lolita L Beato, Dr Robert C Agatep and Dr Lolita D Vyar for their valuable comments, sincere concern, and understanding Likewise, thanks go to the administrative staff of Agriculture College, and the Faculty of LSPU, Siniloan Campus for their great support Special thanks to Dr Nguyen Thi Thuy My, Prof Olivia P Magpily for their constructive suggestions and warm encouragement To all the faculty members of Animal Science and Veterinary Medicine, TUAF for the permission to go on study leave Deepest gratitude to her loving parents and parents in law, to her sisters, brothers in law, her sisters for all their sacrifices, encouragements and prayers Near is extended forever grateful to her loving husband Dr Nguyen Duc Truong and her sons, Nguyen Duc Kiet and Nguyen Minh Khoi, for their love and spiritual support Lastly, sincere thanks to all her friends for their help and support during my stay in the Philippines and in the conduct of experiments iii DEDICATION To all my family members iv ABSTRACT Two studies were conducted 1) to evaluate the effect of ME to protein rations in diet from to 21 day of age on production performance and carcass characteristics of F1 (Mia × Luong Phuong) chicken (Study 1); 2) to determine the Effect of different cassava and copra meal levels in diet from to 21 day of age on production performance, caloric efficiency and carcass characteristics of F1 (male Mia × female Luong Phuong) chicken (Study 2) These studies attempted to find answers to the specific questions presented in Chapter In Study 1, 200 day-old, F1 (Mia × Luong Phuong) chicks were randomly allotted to of treatments following a randomized complete block design (RCBD) There were replicate cages per treatment with 10 birds in each cage The treatments were used in this study were four ratios of ME to CP in diet of 150, 142.5, 135.7, 129.5 and 123.9 In Study 2, 640 day-old, F1 (Mia × Luong Phuong) chicks were randomly allotted to of 16 treatments following a randomized complete block design (RCBD) The factors that were used in this study were levels of cassava meal (0, 5, 10 and 10%) and levels of copra meal (0, 5, 10 and 15%) in booster diets There were replicate cages per treatment with 10 birds in each cage Results of Study showed that from to 21 day of age of F1 Mia × Luong Phuong chicks fed diet containing ME to CP ratio of 142.5 had the best (P0.05) cassava × copra meals levels interaction for any of the crude protein untilization parameters measured (Table 11) 61 From to 21 day of age, chicks fed with increasing concentrations of cassava meal had trend (P=0.07) and linear reduced crude protein daily intake (Table 13) Chicks fed with increasing of copra meal concentrations showed significant difference (P
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