Effect of Feeding Different Levels of Protein on Mortality, Carcass Characteristics, Biochemical Parameter, Time Motion Study and Economics of Desi Ducks under Intensive System of Rearing

Abstract

The present study was carried out on 360 unsexed day-old ducklings (Desi) procured from the hatchery of Regional Center, CARI, Bhubaneswar distributed randomly into three treatment groups with three replicates in each group during brooding (0-8 weeks of age) by feeding 18, 20 or 22% crude protein respectively and growing periods (8-16 weeks of age) by feeding 14, 16 and 18% crude protein respectively to study the mortality, carcass characteristics, biochemical parameters, time motion study and economics. It was found that the mortality of ducklings under different treatments ranged from 6.67-8.33% during 0-8 weeks of age and was within normal range indicating that the different levels of protein supplementation in the diet could not influence the health condition of the ducks. There was no significant difference in the carcass traits with respect to dressing percentage or percentage of giblet, blood loss, feather weight, inedible viscera and cutup parts between different treatments at 16 weeks of age. There was no significant difference in the serum uric acid concentration (mg dLG 1 ) between different levels of protein supplementation in the diet. Further, the total time spent for rearing 40 ducks from 0-4 weeks of age was 4.71-4.8 h man and during 5-8 weeks of age, it was 4.94-5.27 h man. One laborer working for a period of 8 h man per day can manage 1864-1900 ducks of 0-4 weeks of age and 1699-1811 ducks of 5-8 weeks of age. The feed cost per kg live weight gain was lowest in the ducks with 14% crude protein in the ration during 9-16 weeks of age compared to the ducks provided with the ration containing 16 or 18% crude protein.

Effect ofPomacea canaliculatasnail feed on carcass physical composition, meat chemical composition, and hematological profile of muscovy duck

“…Still, for the parameter of the percentage of each part of the commercial cut to body weight, there is no significant difference (P>0.05). The present finding is in agreement with those of [26] who reported that there was no significant difference in carcass characteristics (wing, breast, back, thigh, drumstick) by high protein content in the duck diet (18% vs. 22%). Commercial cuts were not significantly different due to the different ratios of energy and protein in rations for each treatment.…”

“…This is because P2 and P3 diets contain high protein while P0 and P1 contain high energy. The high energy content in the ration increases carcass abdominal fat deposition [26]. According to a study by [33] who showed ducks fed the highest protein (19% CP) and lowest energy (11.8 MJ/kg) produces a lower fat weight and breast skin than dietary high energy and low protein.…”

Black soldier fly larvae meal supplementation in a low protein diet reduced performance, but improved nitrogen efficiency and intestinal morphology of duck

“…In our research, the treatment of CP levels and protein sources resulted in a total protein in serum between 2.76 to 3.38 g/dL, with the lowest shown on BSFL-14%. According to Behera et al [ 37 ], the total blood protein of 8-week-old ducks is between 6.3 to 6.4 g/dL in the treatment of reduced protein levels up to 4%.…”

The Effect of Garlic Volatile Oil Supplementation on Illeum Histologic of Extensive System Cihateup Duck

“…Pertumbuhan villi ini dipacu karena kehadiran protein glutamil cystein, yang berperan meningkatkan anabolisme protein. Kim et al (2009); Peinado et al 2012 Lai et al (2014), mengemukakan bahwa sintesis protein dan lipid dapat mengalami peningkatan dengan tajam pada masa pertumbuhan, serta peningkatan pemanfaatan zat-zat makanan (Burdick et al, 2011;Mohanty et al, 2015;Soisuwan & Chauychuwong, 2013;Lee et al, 2014).…”