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Six Holstein cows were used for the studies. On account of the university has no enough land to produce the meadow grass, wild grasses such as miscanthus, imperata cylindrica and panicum repens have been fed chiefly. In addition to the wild grass, napier grass produced in the university farm have been used in summer and sugar cane tops in winter. To furnish the nutrient requirement in adequate amount, the concentrates were added to the roughage. The results were as follows: 1. Average milk production in 305 days of lactation period was 4148.5 kg. 2. As wild grasses were unpalatable and poor quality, the cows did not take the proper amount and then it caused poor milk production. Considering the yield of the milk and the persistency curves of lactations, it can be safe: to say that, as far as the wild grass has been used chiefly as the roughage for milk production, it is difficult to display the cow\u0027s milk production ability. 3. In Okinawa, the ascent of the body temperature of Holstein cows begins at the end of April following the ascent of the air temperature and in July, the hottest season, the body temperature of the cows reaches often 40℃ or more with the temperature over 30℃. 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沖縄における乳牛の泌乳量について
http://hdl.handle.net/20.500.12000/19210
http://hdl.handle.net/20.500.12000/19210e9067c6e-00f6-40f6-992b-3d1cd8f2af4c
名前 / ファイル | ライセンス | アクション |
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No11p045.pdf
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Item type | デフォルトアイテムタイプ(フル)(1) | |||||||||
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公開日 | 2011-04-21 | |||||||||
タイトル | ||||||||||
タイトル | 沖縄における乳牛の泌乳量について | |||||||||
言語 | ja | |||||||||
タイトル | ||||||||||
タイトル | Studies on milk production by the Holstein cows in Okinawa. | |||||||||
言語 | en | |||||||||
作成者 |
松田, 祐一
× 松田, 祐一
× Matsuda, Yuichi
|
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アクセス権 | ||||||||||
アクセス権 | open access | |||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | Studies have been conducted to know the amount of milk produced by Holstein cows: which have been raised on the farm of the university of the Ryukyus, and also to know some factors affected the milk production. Six Holstein cows were used for the studies. On account of the university has no enough land to produce the meadow grass, wild grasses such as miscanthus, imperata cylindrica and panicum repens have been fed chiefly. In addition to the wild grass, napier grass produced in the university farm have been used in summer and sugar cane tops in winter. To furnish the nutrient requirement in adequate amount, the concentrates were added to the roughage. The results were as follows: 1. Average milk production in 305 days of lactation period was 4148.5 kg. 2. As wild grasses were unpalatable and poor quality, the cows did not take the proper amount and then it caused poor milk production. Considering the yield of the milk and the persistency curves of lactations, it can be safe: to say that, as far as the wild grass has been used chiefly as the roughage for milk production, it is difficult to display the cow's milk production ability. 3. In Okinawa, the ascent of the body temperature of Holstein cows begins at the end of April following the ascent of the air temperature and in July, the hottest season, the body temperature of the cows reaches often 40℃ or more with the temperature over 30℃. With the ascent of the body temperature of the cows, the reduction of the milk yields has taken place at the end of April and much reduction in July. | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 紀要論文 | |||||||||
出版者 | ||||||||||
言語 | ja | |||||||||
出版者 | 琉球大学農家政工学部 | |||||||||
言語 | ||||||||||
言語 | jpn | |||||||||
資源タイプ | ||||||||||
資源タイプ | departmental bulletin paper | |||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
出版タイプ | ||||||||||
出版タイプ | VoR | |||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
識別子 | ||||||||||
識別子 | http://hdl.handle.net/20.500.12000/19210 | |||||||||
識別子タイプ | HDL | |||||||||
収録物識別子 | ||||||||||
収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 0485-7828 | |||||||||
収録物識別子 | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AN00250570 | |||||||||
収録物名 | ||||||||||
言語 | ja | |||||||||
収録物名 | 琉球大学農家政工学部学術報告 | |||||||||
収録物名 | ||||||||||
言語 | en | |||||||||
収録物名 | The science bulletin of the Division of Agriculture, Home Economics & Engineering, University of the Ryukyus | |||||||||
書誌情報 |
号 11, p. 45-51 |