Seasonal variation in the contents of loin from Yeso sika deer captured and reared for a short period on a deer farm

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  • 生体捕獲後に鹿生産牧場において短期飼育したエゾシカのロース肉成分の季節変動
  • セイタイ ホカク ゴ ニ カ セイサン ボクジョウ ニ オイテ タンキ シイク シタ エゾシカ ノ ロースニク セイブン ノ キセツ ヘンドウ

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Abstract

<p>Yeso sika deer captured in the winters of 2006 and 2007 around Lake Akan in Hokkaido were transported to a deer farm, and reared for 3-10 months. Ten 2-year-old or older (adult) males were slaughtered and their carcasses were processed: 3, 3, 2, and 2 in June, July, September, and October of 2006, respectively. In 2007, three adult females were slaughtered and their carcasses were processed in each of June, July, September, October, and November (total of 15). The chemical composition and mineral contents of the loin were measured. Lipid contents of the loin from male deer were slightly lower in September and the highest in October. Regarding the mineral contents, although there was a decrease in the potassium and iron contents in September and an increase in the contents in October, there were no seasonal differences in other minerals. Lipid contents of the loin from female deer were generally high (3.9 to 7.6%), particularly in October. There were no seasonal differences in the protein contents (20.6 to 21.1%). Ash contents were significantly lower in July. The potassium contents varied depending on the season, and they were significantly lower in November. Arsenic, cadmium, and lead were not identified. There were seasonal differences in the lipid, ash, and potassium contents of the loin from adult Yeso sika deer captured and reared on a deer farm for a short period. Farmers may produce deer meat to cope with the demand by paying attention to the contents of meat as well as its productivity, including the feed efficiency, weight gain, and weight of the dressed carcass.</p>

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