伊莎蛋雞飼糧中添加狼尾草粉與苜蓿顆粒粉對其產蛋性狀、蛋黃呈色及血液生化值之影響

Effect of adding Napiergrass powder and alfalfa pellet powder in the diet on the egg production, yolk color and blood parameter of ISA hen

楊深玄(Shen-Shyuan Yan) ； 莊璧華(Pi-Hua Chuang) ； 塗建銘(Chien-Ming Tu) ； 成游貴(Yu-Kuei Cheng) ； 蘇安國(An-Kuo Su)

《畜產研究》 52卷2期 (2019/06) Pp. 91-99

摘要

本研究旨在探討伊莎（Isa）蛋雞日糧中添加狼尾草粉與苜蓿顆粒粉對其產蛋性狀、蛋黃顏色及血液生化值之影響。試驗採用21週齡之伊莎蛋雞90隻分別飼養於長36 cm × 寬30 cm × 高42 cm之個別籠中，並逢機均分為3個處理組，每處理組3重複，每重複10隻。分別餵飼添加5%狼尾草粉（A組）、添加5%苜蓿顆粒粉（B組）及玉米－大豆粕為主之基礎飼糧（C組，對照組），三組均為含CP 17.0% 與ME 3,000 kcal/kg之等蛋白質與等代謝能的飼糧。試驗期為21－40週齡，水與飼料採任食並記錄其採食量、體重及個別產蛋數，於第25、29、33、37週齡收集蛋，供分析蛋品質與蛋黃顏色。並於第25與40週齡採集血樣，進行血液生化值之分析。結果顯示，三組間雞隻之死亡率、採食量、平均體重、隻日產蛋率及平均蛋重均無顯著差異。羅氏蛋黃比色扇值惟在蛋雞25週齡時，採食添加狼尾草粉組顯著較其他二組為高（P ＜ 0.05）。在蛋黃L、a及b值方面，僅L值在25、29及33週齡時，以狼尾草粉組者為最明亮（P ＜ 0.05）。在三組血液生化值方面，僅血中總鈣濃度於三組間有顯著差異（P ＜ 0.05），採食添加苜蓿顆粒粉組者之蛋雞，有最低的血中總鈣濃度。此外，採食添加苜蓿顆粒粉組者之蛋雞，有較低的血中總膽固醇、三酸甘油酯、高密度膽固醇及低密度膽固醇濃度之趨勢。另在蛋黃內含葉黃素與β-胡蘿蔔素濃度方面，採食5%苜蓿顆粒粉與5% 狼尾草粉組者，含葉黃素與β-胡蘿蔔素濃度遠多於對照組1－2倍以上（P ＜ 0.05）。本研究結果顯示，添加5%狼尾草粉或5%苜蓿顆粒粉於蛋雞飼糧中，對伊莎蛋雞產蛋性狀與血液生化值均無顯著影響。惟在蛋雞的生產階段，其蛋黃內含β-胡蘿蔔素濃度顯著較多，是具有推廣潛力可做為提升蛋黃色素添加物之替代方案。

關鍵字

伊莎蛋雞 ； 狼尾草粉 ； 苜蓿顆粒粉 ； 蛋黃顏色

並列摘要

The purpose of this study was to evaluate the effect of dry Napiergrass powder and alfalfa pellet powder for egg production traits on the yolk color and serum biochemical values in laying hens. Ninety ISA laying hens were carried out in the cages at 21 weeks of age and randomly allotted into the 3 different treatments, which were fed with adding 5% Napier grass powder diet (group A), 5% alfalfa pellet powder diet (group B) and control diet (group C). The egg was collected at 25, 29, 33 and 37 weeks of age, while blood sampling were collected at 25 and 40 weeks of age. The hens were fed at ad libitum and the number of egg production was recorded. The result showed that there were no significant difference among groups on mortality, daily feed intake, average body weight, average egg production rate, average egg weight and egg quality on experimental hens. In the egg yolk color experiment, there was also no significant difference among groups on the score of Roche yolk color, a value and b value of yolk at different sampling weeks. However, the hens, which consumed 5% Napier grass powder, had more brighter than that of in another two groups in part of stages (P ＜ 0.05). Meanwhile, there was only significant difference among groups on the calcium at blood at experimental hens. In addition, the egg yolk, which produced from 5% Napiergrass powder group or 5% alfalfa pellet powder group, had significant 1 to 2 times higher lutein and β-carotene concentration than these of in the control group (P ＜ 0.05). In conclusion, the feeds added with 5% Napiergrass powder or 5% alfalfa pellet powder did not affect the egg production traits and serum biochemical values. However, the yolk color of hen which consumed 5% Napiergrass powder had significant brightest than that of in another two groups.

並列關鍵字

ISA hen ； Napiergrass powder ； Alfalfa pellet powder ； Yolk color