蛋白質含量及添加吡啶甲酸鉻對畜試黑豬之生長性能、屠體性狀及肉品質之影響

Effects of Dietary Protein Level and Chromium Picolinate on Growth Performance, Carcass Characteristics and Meat Quality of TLRI Black Pigs

徐阿里(A-Li Hsu) ； 劉芳爵(Fang-Chueh Liu) ； 許晉賓(Chin-Bin Hsu) ； 陳文賢(Wen-Shyan Chen) ； 陳義雄(Yie-Shiung Chen)

《畜產研究》 35卷3期 (2002/09) Pp. 255-262

摘要

以畜試所育成的畜試黑豬一號（TLRI Black Pig No.1）48頭（公母各半，平均體重25.5kg）依性別逢機分飼於24欄，同性別豬2頭置於一欄，逢機分飼處理飼糧。飼糧處理設計為2×2複因子：蛋白質含量在生長期—肥育期為17-15%及15-13%；不添加或添加0.5%吡啶甲酸鉻（相當於添加鉻200 ppb），以測定生長性能。飼養試驗結束時，每處理屠宰6頭，以測定屠體性狀及肉質品評。試驗結果顯示，在豬之生長性能及屠體性狀方面，飼糧處理因子粗蛋白質與鉻之間並無交感。提高飼糧蛋白質含量或添加吡啶甲酸鉻並不能改進黑豬之生長性能、屠體性狀及肉品質，但提高黑豬飼糧蛋白質含量可提高里肌肉的蛋白質含量、降低其脂肪含量（P＜0.05）及有改進生長期及肥育期的飼料效率（4%）之趨勢，但添加吡啶甲酸鉻會降低黑豬的瘦肉率及腰眼面積（P＜0.05）。本結果顯示，提高飼糧蛋白質或添加吡啶甲酸鉻含量對黑豬的生長性能、屠體性狀、瘦肉率及肉質品評鮮有正面效果。

關鍵字

蛋白質 ； 吡啶甲酸鉻 ； 生長性能 ； 屠體性狀 ； 肉品質 ； 畜試黑豬

並列摘要

The experiment was conducted to evaluate the effects of dietary protein level and chromium picolinate on growth performance, carcass characteristics and meat quality of TLRI Black Pig No.1. A total of 48 TLRI Black Pigs (24 barrows and 24 gilts with an initial BW of 25.5 kg), including 1/4 native Taoyuan pig and 3/4 purebred Duroc, were used. Pigs were assigned to 24 individual pens with the same sex per pen and were allotted to one of the four dietary treatments with a 2×2 factorial arrangement of treatments containing two protein levels (17 and 15% in the grower phase; 15 and 13% in the finisher phase) and without or with chromium picolinate (200 ppb chromium from 0.5% chromium picolinate). At the end of feeding trial, 6 pigs with the finial BW of 105 kg per treatment were slaughtered to measure carcass characteristics, chemical contents and panel test of longissimus muscle. The results showed that there was no interaction between protein levels and chromium picolinate on growth performance, carcass characteristics, or carcass quality of TLRI Black Pigs, and dietary protein levels and chromium picolinate did not affect the measurements. Although the higher protein level diet could generate a higher muscle percent and a lesser fat percent (P ＜ 0.05) and improved 4% feed efficiency compared with control diet, but lean percent and longissimus muscle area were reduced by chromium picolinate supplementation (P＜0.05). Those results suggest that there were slight effects of protein level or chromium picolinate added on growth performance, carcass characteristics, and meat quality in TLRI Black Pig.

並列關鍵字

Protein ； Chromium picolinate ； Growth performance ； Carcass characteristics ； Meat quality ； TLRI Black Pigs