منابع مشابه
Breeding Problems with Angora Goats
OINCE its domestication the goat has served man well. As a source of milk, meat, mohair, and skins it has furnished him both food and clothing, and because of its brush-eating proclivities, has spared him untold amounts of hard labor with the brush hook. Since 1900 the Angora goat industry in the United States has undergone rapid expansion. At present it is confined largely to the Southwestern ...
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This study aimed to identify the most suitable species of Iranian medical leeches for aquaculture through a comparative study of growth, survival and reproduction of Hirudo medicinalis and Hirudo orientalis, which are native to the southern shores of the Caspian Sea and do not have sufficient information about their biology. Medicinalis growth was significantly faster (p<0.05) until the fifth m...
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The paper examines sustainability within the context of farm animal breeding and reproduction. Sustainability can benefit breeders in two ways: (i) it invites breeders to take a comprehensive look at potentially conflicting breeding-related concerns, and to face any difficult trade-offs; and (ii) presenting the concerns within a framework (i.e. of sustainability) that is endorsed by society as ...
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An investigation was conducted into the effects of two phenolic amines, N -methyl-~-phenethylamine (NMP) and tyramine (1') on corpus luteum function and reproductive performance of Angora goats. Both compounds are widely distributed through the plant kingdom and, because of their sympathomimetic action, may interfere with normal reproductive processes. In Experiment I, 20 nannies (x = 26.7 ± 0....
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1978
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(78)83680-7