Cellular conditions for intramuscular fat deposition in Japanese Black and Holstein steers
Cellular conditions for intramuscular fat deposition in Japanese Black and Holstein steers
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DOI：
10.1016/j.meatsci.2011.03.012
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发表时间：
2011-09-01
期刊：
影响因子：
7.1
通讯作者：
Wegner, J.
中科院分区：
文献类型：
--
作者：
Albrecht, E.;Gotoh, T.;Wegner, J.
本试验旨在研究日本黑（JB）和荷斯坦（HS）阉牛在相同饲养条件下肌内脂肪的发育情况，并探讨其在胴体脂肪库发育和分布方面的品种差异。除了屠宰样本外，在10、14、18和22月龄时采集的最长肌（LM）和皮下脂肪活检样本用于组织学和分子研究。日本黑牛在LM中储存的脂肪约多14% (P=0.001)，导致较大的大理石纹斑点（P=0.001）
The experiment was conducted to study the development of intramuscular fat in Japanese Black (JB) compared to Holstein (HS) steers and to find breed differences for fat depot development and distribution in the carcass under equal feeding conditions. Additional to slaughter samples, biopsy samples of longissimus muscle (LM) and subcutaneous fat, taken at 10, 14, 18, and 22 months of age, were used for histological and molecular investigations. Japanese Black steers stored about 14% more fat in the LM (P=0.001), resulting in larger marbling flecks (P