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Abstract

This paper reviews methods for quantifying breeding efficiency in poultry and the application of these techniques for monitoring commercial breeder flocks. It is suggested that breeding efficiency can be best quantified by estimating the numbers of sperm that interact with the egg in the...

Author(s)
Wishart, G. J.; Staines, H. J.
Citation
Poultry Science, 1999, 78, 3, pp 428-436
Abstract

Semen was collected from 72 cocks during the year Oct. 1948-Sep. 1949. The cock spermatozoon consists of a head, which is needle-shaped, 10 µ long and 1 µ in diameter, and with an acrosome at the tip, a middle piece 5 µ long, and a tail 100 µ long. The av. volume per ejaculate was 0.76 ml. ; it...

Author(s)
POLGE, C.
Citation
Proc. Soc. Stud. Fertil. [Camb], No. 2, Lond. Conf., 1950, 1951, pp 16-22
Abstract

MIXED semen from 30 White Leghorn cocks was used to inseminate 257 hens, either undiluted or diluted with Ringer's solution to give sperm concentrations of 30%, 10%, and 2%. The 10% concentration gave as good results as, and the 30% concentration better results than undiluted sperm, while 2% sperm...

Author(s)
BONNIER, G.; TRULSSON, S.
Publisher
Cleveland,
Citation
Proceedings of the 7th World's Poultry Congress, Cleveland, Ohio, 1939, 1939, pp 76-79