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Abstract

On many pig farms, >50% of boars used as herd sires are culled within their first two years of use. Premature culling of high value breeding animals has negative effects not only on breeding programmes but also on the economic performance of farms. Sire boars have a significant influence on the...

Author(s)
KlopitskiĭV. P.; Konopel'ko, Yu. V.
Publisher
Izdatel'ski Dom Svinovodstvo, Moscow, Russia
Citation
Svinovodstvo (Moskva), 2010, No.6, pp 63-65
Abstract

Boar semen diluted in glucose-sodium bicarbonate-yolk and used immediately did not reduce the conception rate compared with that obtained by natural mating. Conception rate was reduced to 72.2% when the diluted semen was stored for 3 days. The fertility of Large Blacks was lower than that of Large...

Author(s)
Prokopcev, V. M.
Citation
Nasledstvennostj i izmencivostj sel. hoz. zivotnyh. Leningrad: Kolos., 1964, pp 86-90 pp.
Abstract

UNTIL 1936 indigenous Buryat-Mongolian sheep were bred on the collective farms of the Aginskoe district of the Chita Province. In 1936 it was decided to use Merinos to improve the wool and mutton qualities and the fertility of these sheep. A. I. was used to expedite improvement. By 1945 47. 2% of...

Author(s)
Radnabazaron, B.
Citation
Sotsialisticheskoe Zhivotnovodstvo, 1950, 8, pp 87-89
Abstract

VSJAKIH, A. S. Kratkie itogi naucno-issledovateljskoï raboty instituta Zivotnovodstva v uslovijah voennogo vremeni. [Short report of the research work of the Institute of Animal Breeding under wartime conditions]: 3-18. Horse: treatment of infertility in mares with prolan. Cattle: treatment of...

Author(s)
Liskun, E. F.; Vsjakih, A. S.
Publisher
Moscow : Ogiz-Seljhozgiz,
Citation
Nauonyi otdet Vseso-juznogo Naucno-Issledovateljskogo Instituta Zvotnovodstva. Raboty vypolneny v gody Velikoi Otedestvennoi voiny (1941-1943 gg.)., 1945, pp 232 pp.
Abstract

The good results obtained in the improvement of livestock in the U.S.S.R. by selection and inbreeding are briefly discussed. The possible danger of such a policy is pointed out and illustrated by the case of the Mazoev breed of sheep, which was noted for length of wool. Over concentration on this...

Author(s)
Milovanov, V. K.; Smirnov-ugryumov, D. V.
Publisher
Moscow : SePkhozgiz,
Citation
Osemenenie sel'skokhozyaistvennykh zhivotnykh., 1944, pp 100 pp.
Abstract

IN the collective farms of the Micurin district of Tambov province 2200 sheep, 500 cows and 170 mares were inseminated in 1939. Herd Book Simmental, and crossbred bulls of the 4th generation, and purebred Russian Trotters were used as sires. Goats were inseminated for the first time with sperm of...

Author(s)
Granitov, I. V.
Citation
Sotsialisticheskoe Zhivotnovodstvo, 1940, 1, pp 79-80
Abstract

THE introductory address given at the meeting of the animal breeding section of the Agricultural Academy was devoted to problems of feeding and utilization of livestock sires. The various aspects of fertility and sterility in the ♂ are discussed, the text being largely reproduced from recent...

Author(s)
Milovanov, V. K.
Citation
Radon. Korml. Ispoljz. Proizvod. s. h. Zivotn. Moscow : Lenin Acad. Agric. Sci., 1939, pp 4-35
Abstract

IN the course of several years during which the 2 species were kept together in one aquarium, the author obtained 21 hybrids, whereas when artificial insemination was employed, over 202 F1 and 107 F2 hybrids were produced in a few months. Sperm was obtained by lightly pressing the body of the ♂ in...

Author(s)
Samohvalova, G. V.
Citation
Izv. Akad. Nauk SSSR. [Otd, mat. -est., Ser. biol., 1938, pp 975-981
Abstract

A MOST interesting book written with the purpose of elucidating the great potentialities that crossing remotely related animal forms may have for the practice of animal breeding. There have been many attempts at crossing different species in the past, but most of them have not been carried out on a ...

Author(s)
Serebrovskii, A. S.
Publisher
Moscow : Biomedgis.,
Citation
Hybridisation of animals., 1935, pp 290 pp.

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