白羅曼種鵝於產蛋期間之體態評分與器官重量之變化

Body type score and organ weight during laying period of White Roman breeder geese

林旻蓉(Min-Jung Lin) ； 李滋泰(Tzu-Tai Lee) ； 賈玉祥(Yu-Shine Jea) ； 范揚廣(Yang-Kwang Fan) ； 張伸彰(Shen-Chang Chang)

《畜產研究》 47卷2期 (2014/06) Pp. 101-108

摘要

本研究旨在調查白羅曼種公鵝及母鵝於產蛋期間之體態評分及器官重量之變化，藉此了解種公鵝與種母鵝在產蛋過程中，其組織發展與產蛋之關係。本研究調查期間為種母鵝開始產蛋前至產蛋結束，期間每月逢機採樣一次，共取樣8次（10月開始至翌年5月止），每次取樣屠宰公母鵝各5隻，共計屠宰公母鵝各40隻。每次取樣同時亦觀察69隻公鵝及190隻母鵝之腹部－腳部輪廓評分（abdominal-foot profile score, AFPS）。試驗結果顯示，公鵝於調查期間之屠體重、肝臟重、肌胃重、屠宰率、肝臟重佔屠體重百分比及肌胃重佔屠體重百分比，均呈顯著曲線反應，然心臟重佔屠體重百分比則呈線性反應。母鵝於調查期間之體重、屠體重、腹脂塊重、肝臟重、屠宰率、腹脂塊重佔屠體重百分比及肌胃重佔屠體重百分比，均呈顯著曲線反應。母鵝在產蛋後第1、第2及第3個月之腹部―腳部輪廓評分顯著較產蛋前第2、第1個月及產蛋時者為高（3.89、3.86及3.94vs. 3.34、3.39及3.54）。母鵝之體重分別與屠體重（r＝0.88, P＜0.01）、腹脂重（r＝0.94, P＜0.001）及肝臟重（r＝0.93, P＜0.001）間呈正相關。綜合以上所述，母鵝於產蛋時之肝臟重、肌胃重、腸道重及腹脂重量均達到最大，顯示種鵝之內臟器官會為產蛋之需而作生理上之調整。

關鍵字

體態評分 ； 器官重量 ； 白羅曼鵝

並列摘要

The purpose of this study was to investigate the relationship of body type score and organ weight during laying period of White Roman geese. A total of sixty-nine ganders and 190 female geese in their first laying period with average age of 6 months were allotted into each cage, individually. The geese were randomly sampling 8 times (each time per month, from October to May of next year), 10 geese were sacrificed by cervical dislocation each month. The results showed that the effects of reproductive period on carcass weight, liver weight, gizzard weight, dressing, liver weight as a percentage of Eighteen-h feed-deprired body weight (FDBW) and gizzard weight as a percentage of FDBW of gander goose were quadratics. Liver weight as a percentage of FDBW of gander had linear effect. The effects of laying period on body weight, carcass weight, liver weight, abdominal fat pad weight, liver weight, dressing, fat pad weight as a percentage of FDBW and gizzard weight as a percentage of FDBW of goose were quadratics. It showed that the gander in first and second month after laying egg of female geese had a higher on abdominal-foot profile score than second and first month before laying egg, onset laying month, third and fourth month after laying egg of female geese (3.98 and 3.93 vs. 3.24, 3.29, 3.19, 3.26 and 3.55, P ＜ 0.0001), respectively. The geese in first, second and third month after laying egg had a higher on abdominal-foot profile score than second, first month before laying egg and onset lay month (3.89, 3.86 and 3.94 vs. 3.34, 3.39 and 3.54, P ＜ 0.0001), respectively. The body weight of geese was positively correlated to carcass weight (r = 0.88, P ＜ 0.01), abdominal fat pad weight (r = 0.94, P ＜ 0.001) and liver weight (r = 0.93, P ＜ 0.001). In conclusion, the female geese had heavier abdominal fat pad weight, liver weight, intestinal weight, and gizzard weight at onset of laying in White Roman geese which indicated that the internal organs had been developed for egg production.

並列關鍵字

Body type score ； Organ weight ； White Roman goose