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題名 | 飼料中添加不同含量之醋酸鉛、硫酸銅對乳用山羊生理與屠體衛生之影響=The Physiological Response and Carcass Hygiene of Dairy Goats at Different Lead Acetate and Copper Sulfate Levels |
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作者 | 蘇耀期; 楊忠亮; 盧金鎮; 林炳宏; 羅登源; | 書刊名 | 中華民國獸醫學會雜誌 |
卷期 | 24:4 1998.12[民87.12] |
頁次 | 頁214-226 |
分類號 | 437.58 |
關鍵詞 | 醋酸鉛; 硫酸銅; 屠體; 乳山羊; Lead acetate; Copper sulfate; Carcass; Dairy goat; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗目的在於探討乳山羊以含不同劑量鉛、銅之添加對生理及屠體性狀之影響; 試驗日糧分為三組,第一組進行添加銅試驗(飼料中分別添加0、150、300 ppm硫酸銅), 第二組進行鉛添加試驗(分別添加0、10、100、1000 ppm醋酸鉛)第三組供作對照組,並 定期收集樣品,進行各項分析,試驗結果如下:飼料採食量以添加鉛10、1000 ppm及銅各 劑量對粗料攝食量均增加,精料方面以添加1000 ppm鉛有顯著減少(p<0.05),泌乳量各 組間變異大,並無統計意義,而高劑量鉛、銅均使血液天冬胺酸轉胺?(Aspartate aminotransferase, AST)值有顯著的上升(p<0.05),不同劑量鉛、銅對乳汁殘留量之對應含 量並無明顯之關連性(p>0.05),且符合食用食品容許標準,而糞中鉛、銅排泄含量則隨劑 量之增高而增加。在屠體殘留之影響,以添加1000 ppm醋酸鉛在肝臟、脛骨、脊髓及腎臟 之殘留量增加而有特殊意義,肝臟之切片可見嗜酸性核內包函體及肝細胞之空泡化,巨核細 胞及變性壞死之出現。唯肌肉內並未發現有意義之殘留現象。 |
英文摘要 | This study assessed the physiology, pathology and carcass hygiene of dairy goats. In group 1, for the copper test, dairy goats were fed one of three diets containing added amounts of copper sulfate at 0, 150, 300 ppm, respectively. In group 2, for the lead test, dairy goats were fed one of four diets containing added amounts of lead acetate at 0, 10, 100, 1000 ppm, respectively. In group 3, dairy goats served as a control group and did not receive lead or copper supplement. Samples were collected regularly to perform the various analyses. Results in this study can be summarized as follows: Roughage intake increased not only with 10 and 100 ppm lead supplements, but also with all dosages of copper added in the diets. Concentrate intake significantly decreased when diets were supplemented with 1000 ppm lead. Mike production was not statistically altered despite the large variation among treatments. In addition, aspartate aminotransferase (AST) levels in 1000 ppm lead treated and 300 ppm copper treated groups significantly increased. No significant levels of milk contamination were found in the goats fed various amounts of lead and copper. Regardless of the dosage, milk content remained within acceptable levels. Moreover, the lead and copper content of feces increased with an increase in dietary dosage. In the 1000 ppm lead supplement group , the amount of lead residue found in the liver, tibia, vertebrae and kidneys markedly increased, lntranuclear inclusion bodies were also found in hepatic cells. Vacuolization, necrosis, regenergation and megalokaryocytes were found in the liver sections of goats taking a 1000 ppm lead diet. Furthermore, no significant residue in muscular tissue was detected. |
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