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AssigneeAgromedic Co., Ltd.
InventorsMasahide Nakata, Mampei Kobayashi, Masahiko Fukayama
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Disclosed are a breeding method of a female pig for propagation characterized by feeding at least one lipid selected from a fatty acid having 12 to 24 carbon atoms which has a melting point falling in a range of −60 to 40° C. and an iodine value falling in a range of 30 to 470 and which has 2 to 6 double bonds in a molecule, a triglyceride containing the above fatty acid and a metal salt of the above fatty acid, and a feed for a female pig for propagation containing the above lipid in a proportion of 0.5 to 10% by weight in terms of the fatty acid described above. According to the breeding method of a female pig for propagation of the present invention, breeding results can be elevated by further increasing a litter size, allowing the number of delactation to grow large, shortening the days of returning estrus and increasing an annual average delivery frequency.
A breeding method of a female pig for propagation by artificial insemination, characterized by feeding to the female pig a feed comprising at least one lipid selected from a fatty acid having 12 to 24 carbon atoms which has a melting point falling in a range of −60 to 40° C. and an iodine value falling in a range of 30 to 470 and which has 2 to 6 double bonds in a molecule, a triglyceride containing the above fatty acid and a metal salt of the above fatty acid, in a proportion of 20 to 200 g per head a day in terms of the fatty acid described above in a duration extending from 30 days before the artificial insemination up to 3 weeks after the artificial insemination.
Dependencies are inferred from the claim text.