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題名 | 限食開始體重和飼料餵量對肉豬生長和屠體性能之影響 |
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作者姓名(中文) | 游義德; 顏宏達; | 書刊名 | 中華農學會報 |
卷期 | 150 1990.06[民79.06] |
頁次 | 頁75-82 |
分類號 | 437.654 |
關鍵詞 | 生長; 肉豬; 性能; 屠體; 飼料; 餵量; 體重; |
語文 | 中文(Chinese) |
中文摘要 | 84頭體重20kg大白豬(公母各半)個別飼養並任食供應粗蛋白質16%玉米-大豆粕飼料至體重55kg。體重55kg以後豬隻繼續採用任食飼養或在體重55、70與85kg後採用90%與80%的任食飼料量至體重達100kg時屠宰,以進行生長與屠宰體性能測定。 試驗結果顯示飼料餵量和限食開始體重或上述二處理和性別間均無交感作用存在。每日增重和飼料採食量顯著地(p<0.01)隨著飼料餵量減少而降低,但每日增重並不因限食體重的提前而明顯地變差(p>0.05)。飼料換肉率和屠宰性能在各處理間並無顯著差異。閹公豬和肉女豬間之每日增重差異不顯著,但閹公豬之每日飼料採食量極顯著(p<0.01)高於肉女豬。且飼料換肉率明顯地比肉女豬差(p<0.05),閹公豬之屠宰率(p<0.05)和平均背脂(p<0.01)均高於肉女豬,而肉女豬之屠體較閹公豬為長(p<0.05)。 |
英文摘要 | Eight-four Large White pigs (half castrated male and half female) of liveweight 20 kg were individually penned and given a crude protein 16% maize-soybean meal diet ad libitum. From 55, 70 and 85 kg to 100 kg liveweight, pigs were randomly allocated and transferred to feed at either 80% or 90% of ad libitum level based on a scale, with a control group feeding ad libitum level. Feed intake and live weight were recorded weekly. After slaughter at 100% kg live weight, killing-out percentage, backfat, carcass length and loin-eye area measurement were taken and hams dissected into component tissues. There were no interactions between feeding level x initial weight of limited feeding and sex feeding x level. Daily gain and feed intake were significantly (P<0.01) decreased the more the feeding level was limited. The daily gain and feed intake also proportionately decreased, as earlier the pigs were put on limited feeding level. Feed conversion ratio (feed/gain) and carcass measurements showed no differences among treatments. There were no significant differences in the daily gain between the sexes of pigs, but feed intake (P<0.01) and feed conversion ratio (P<0.05) were significantly higher in the castrated male than in the female pig. The castrated male had a higher killing-out percentage (P<0.05), thicker backfat (P<0.01) and shorter carcass length (P<0.05) than that of the female pig. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。