Study on egg productivity of Muscovy duck (Cairina Moschata).I.Laying performance
2000
Nikolova, M. | Gerzilov, V. (Vissh Selskotopanski Institut, Plovdiv (Bulgaria)) | Genchev, A.
A study was carried out on laying performance of White Muscovy ducks during three consecutive reproductive years.Average yield was 68.97, 85.96 and 77.39 eggs for the first, second and third reproductive years respectively.Laying intensity of 10% the ducks reached at 31, 81 and 134 weeks of age and 50% intensity - at age of 35, 82 and 135 weeks.For each of the three reproductive years two picks of laying ability were found - first at the end of April and second - at the end of July for yearling and at the beginning of July for two years old and at the middle of May - for 3 years old ducks.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Institute of Agricultural Economics