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Abstract

IN the spring of 1948 two silver pheasant hens were inseminated with sperm from a Polish Greenleg cock. Of 27 eggs laid after the inseminations, 2 were broken accidentally. From the remaining 25 eggs, 8 embryos died in the early stages of development, one died on the 6th day, and one on the 10th...

Author(s)
MARCHLEWSKI, J. H.
Publisher
Cl. Sci. math. nat.,
Citation
Bulletin International de l'Academie Polonaise des Sciences et des Lettres. Classe des Sciences Mathematiques et Naturelles. Serie B: Sciences Naturelles II, 1950, B II, pp 231-240
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

THE method of artificial insemination with mixed semen from several ♂♂ is considered expedient for achieving improvement of egg production by heterosis, as it ensures a constancy of the genetic constitution of those populations within pure breeds which have proved suitable for such improvement....

Author(s)
BONNIER, G.; TRULSSON, S.
Citation
Nord. Fjaderfatidskr., 1938, 1, pp 1-8
Abstract

THIS experiment was designed to ascertain the relationship between fertility and hatchability. Sixteen young White Leghorn pullets and 22 hens, both old and young, from heavy breeds were employed. They were kept in laying-batteries and were artificially inseminated with fresh semen by means of...

Author(s)
VAN DRIMMELEN, G. C.
Citation
South African Science, 1948, 1, pp 187-189
Abstract

All eggs laid by hens with which the peacock attempted mating were sterile. Artificial insemination was tried with 6 hens which received 49 inseminations of peacock sperm. Out of 73 eggs only two, laid by one Orpington hen, were fertilized. One hybrid chick hatched on the 25th day. The down was a...

Author(s)
TINIAKOV, G. G.
Citation
Problemy Zhivotnovodstva, 1933, 1, pp 82-86
Abstract

DELAWARE, 1940-41.
In work on ROCKY MOUNTAIN SPOTTED FEVER rodent trapping was carried out to ascertain the host relationships of the immature forms of Dermacentor variabilis. The meadow mouse, Microtus sp., is a common host. Other rodents had very few of these ticks. Adult D. variabilis infested...

Citation
Reports of Agricultural Experiment Stations, U.S.A. Details of the titles of these reports and of relevant papers contained in them will be found in Index Veterinanus.,

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