Biomedical subjects

G Gvaryahu

Publications and source records attributed to G Gvaryahu.

20 records · Page 2Linked to original sources

PubMed1984

Artificial insemination and natural mating in the crossbreeding of the Muscovy drake and the Pekin duck.

Artificial insemination and natural mating were used for the crossbreeding of the Muscovy drake with the Pekin duck in order to produce the Mule duck. An average fertility rate of 48% was reached by artificially inseminating twice a week. In small flocks, however, when the male to female ratio was 1:2.5 (or higher), natural mating yielded a fertility rate of 80%.

Animals↗

PubMed1984

An improved method for obtaining semen from Muscovy drakes and some of its quantitative and qualitative characteristics.

An improved method for obtaining semen from the Muscovy drake using an "artificial vagina" was developed and employed on a commercial scale. With such a procedure, the ejaculate volume was 1.12 +/- .85 ml, semen concentration was 1.35 +/- .43 X 10(9) cells/ml with 8.6 +/- 6.3% abnormal sperm cells. Average spermatozoal motility was graded as 3.59 +/- .93 on a scale of 0 to 5 and the initial pH was found to be 7.30 +/- .23 within 5 min of ejaculation.

Animals↗