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AbstractFull Text

Cryopreservation of domestic animal spermatozoa has been widely used for artificial insemination and egg yolk is one of the most commonly used cryoprotectants during the freezing-thawing process. The aim of the present study was to compare the effectiveness of different duck egg yolk (DEY)...

Author(s)
El-Shamaa, I.; El-Seify, E.; Hussein, A.; El-Sherbieny, M.; El-Sharawy, M.
Publisher
University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bucharest, Romania
Citation
Scientific Papers, Series D. Animal Science, 2012, 55, pp 109-113
Abstract

Heterozygous naked neck (Nana) males were artificially inseminated with normally feathered (nana) female broiler chicken. At hatching, all chicks were wing banded and brooded in electrical brooding batteries. Then, at 3 weeks of age, they were transferred to floor pens. All genetic groups were...

Author(s)
Mahrous, M. Y.; Radwan, L. M.
Publisher
Egyptian Poultry Science Association, Alexandria, Egypt
Citation
Egyptian Poultry Science Journal, 2011, 31, 4, pp 845-853
Abstract

The objective of this work was to improve our local chicken strains throughout the heterotic effect of crossing between exotic (Hubbard) and local (Sinai) breeds. Semen from 10 Hubbard cocks collected at 32 weeks of age were used to artificially inseminate 100 Sinai hens (cock /10 hens) twice per...

Author(s)
Roshdy, K.; El-Soudany, S. M.; Sedeek, Y.
Publisher
Egyptian Poultry Science Association, Alexandria, Egypt
Citation
Egyptian Poultry Science Journal, 2007, 27, 4, pp 1175-1187
Abstract

An experiment was conducted to evaluate the effect of naked neck (Na), frizzled (F) and double segregation genes on some phenotypic and genetic parameters of chickens. 491 chicks (122 NanaFf, 123 Nanaff, 120 nanaFf and 126 nanaff genotypes) were produced by 10 NanaFf cocks, each mated to 10...

Author(s)
Galal, A.
Publisher
Egyptian Poultry Science Association, Alexandria, Egypt
Citation
Egyptian Poultry Science Journal, 2000, 20, 4, pp 945-960