BREEDING AND PRODUCTION PERFORMANCES OF MUSCOVY DUCK LINES.

This paper has described breeding and production performances of three Muscovy duck lines (spotted, white and black) during December 2019-June 2020 which has been raise on the teaching waterfowl farm Moara Domnească of the University of Agronomic Sciences and Veterinary Medicine of Bucharest and results are compared with those recorded in year 2001. Each line group has been of 55 birds in size. There were monitored weekly, monthly and for whole laying cycle the following parameters: body weight, egg production, egg weight, fertility, hatchability, egg weight and day-old body weight. Spotted line had an average body weight of 2427 g for females and 4566 g for males an egg production of 59.42 eggs/bird and an egg weight of 78.21 g and a fertility of 88.48% and a hatchability of 39.79% and a day-old body weight of 47.10 g. White line had an average body weight of 2580 g for females and 4450 g for males and an egg production of 72.06 eggs/bird and an egg weight of 76.56 g and a fertility of 86.00% with a significantly lower hatchability (35.80%) and a day-old body weight of 48.32 g. Black line had an average body weight of 2262 g for females and 4750 g for males and an egg production of 52.45 eggs/bird and an egg weight of 84.72 g and a fertility of 90.24% with a significantly higher hatchability (40.90%) and a day-old body weight of 49.92 g. [ABSTRACT FROM AUTHOR]