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頁籤選單縮合
題 名 | 國產石油酵母代替大豆粉對生長肥育豬發育、飼效及屠體性狀影響研究 |
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作 者 | 李邦淦; 楊榮芳; | 書刊名 | 中華農學會報 |
卷 期 | 82 1973.06[民62.06] |
頁 次 | 頁60-70 |
關鍵詞 | 大豆粉; 生長肥育豬; 石油酵母; 屠體性狀; 發育; 飼效; |
語 文 | 中文(Chinese) |
英文摘要 | Study was made to determine the effect of feeding petroleum yeast which was produced by Chia Yee Solvent Works of Chinese Petroleum Corporation and contained 51.15% of crude protein as a substitute for soybean oil meal in rations on growth rate, feed conversion, dressing percentage carcass quality and serum protein content of growing fattening pigs. Four litters of 12 males and 12 females of the 3 crossbred pigs averaging 25 in weight were divided into three groups on the basis of litter, sex and body weight of 8 heads each group including 4 males and 4 females, and 4 pigs in each pen. The pigs in group 1 recevied soybean protein as the main protein source for control ration. Group 2 received the same ration as those in group 1 except that one half of soybean oil meal was replaced by local petroleum yeast while group 3, all the amount of soybean oil meal in ration was replaced by the same petroleum yeast on crude protein content basis for half test ration and full test ration respectively. The pigs were housed on concrete-floored pens and allowed freee access to food and water at all time. Body weight of each pig was weighed at the intervals of 20 days throughout 100 days of the trial. Feed consumption records were also kept on pen basis. At the completion of the feeding trial, all the pigs were slaughtered for carcass studies, serum protein content of each pig was also determined. The results were given in tables 2 to 11 respectively. It indicated that growth rate and feed conversion of pigs were improved when soybean oil meal in the ration was replaced by local petroleum yeast. It also showed there was no ill effect on dressing percentage, seaum protein content, carcass quality including carcass length, back fat thickness carcass grade, carcass fat characteristics and chemical composition of carcass tissues of the experimental pigs. |
本系統中英文摘要資訊取自各篇刊載內容。