白羅曼鵝、北斗白鵝畜試貳號與雜交鵝在生長期紅血球相與白血球相之比較

The comparisons of erythrocyte and leukocyte profiles in white Roman, Beidou White Goose LRI-2 and hybrid goslings during growing period

蕭智彰(Chih-Chang Hsiao) ； 賈玉祥(Yu-Shine Jea) ； 林炳宏(Ping- Hung Lin) ； 陳盈豪(Yieng-How Chen)

《畜產研究》 50卷3期 (2017/09) Pp. 157-164

摘要

本試驗旨在比較白羅曼鵝、北斗白鵝畜試貳號與雜交鵝在生長期之紅血球相與白血球相。以白羅曼鵝、北斗白鵝畜試貳號及白羅曼鵝與北斗白鵝畜試貳號之雜交鵝各15隻，採高床平飼，飼料與飲水採任食。分別於鵝生長期之4、8、12與16週齡時腳靜脈採血，備供測定血液之紅血球相與白血球相。結果顯示，雜交鵝隻紅血球數目無雜交優勢。各品種生長鵝之紅血球數目、血紅素與血容比均與週齡呈線性或二次曲線。在4－16週齡鵝血紅素平均值，以北斗白鵝畜試貳號者顯著高於白羅曼鵝，但平均紅血球容積（MCV）卻反之（P＜0.05），紅血球數目、血容比、平均紅血球血紅素濃度（MCHC）與平均紅血球血紅素量（MCH）平均值，則在品種之間無顯著差異。整個試驗期生長鵝之異嗜性白血球之百分比值受週齡（P＜0.05）與品種（P＜0.001）之影響；而淋巴球百分比值則受週齡之影響（P＜0.001）；嗜鹼性白血球比例值受品種之影響（P＜0.001）；嗜酸性白血球比例值，則同時受品種及週齡之影響，並且在品種及週齡之間有交互作用（P＜0.001）。白羅曼鵝、北斗白鵝畜試貳號與雜交鵝異嗜性白血球／淋巴球（H／L）之比值，在8週齡顯著高於其他週齡者（P＜0.05）。基於H／L比值為一種緊迫指標，因此推測8週齡生長鵝可能是環境與管理所造成生理緊迫。

關鍵字

生長期 ； 品種 ； 血球

並列摘要

The purpose of present study is to compare the erythrocyte and leukocyte profiles in White Roman Goose, Beidou White Goose LRI-2 and their hybrid goslings during growing period. Fifteen geese of each White Roman, Beidou White Goose LRI-2 and hybrid of White Roman and White Chinese goslings were used as experimental animals, which kept in a high wire floor pen and feed and water were supplied ad libutum. Blood samples were taken in the anticoagulate tube from superficial planter metatarsal vein at 4 wks, 8 wks, 12 wks and 16 wks of age. They were used for investigation of red blood cells (RBC) number, hemoglobin (Hb), packed cell volume (PCV), mean corpuscular volume (MCV), mean corpuscular hemoglobin concentrations (MCHC), mean corpuscular hemoglobin (MCH) values, and differential counts of leucocytes. The results showed that hybrid geese did not have heterosis in RBC number. There are linear or quadratic relation for RBC number, Hb and PCV because valuables of those parameters increase with age. The means of Hb in Beidou White Goose LRI-2 is higher than that of White Roman geese during 4 - 16 wks of age; however, means of MCV is inverse (P ＜ 0.05). There were no significant difference for means of RBC number, PCV, MCH, and MCHC among the breeds. In the whole experimental period, the differential counts of leucocytes, heterophil percentage is affected by the wks of age (P ＜ 0.05) and breed (P ＜ 0.001); lymphocyte percentage is affected by the wks of age (P ＜ 0.001); basophils percentage is affected by breed (P ＜ 0.001); eosinophils percentage is affected by the wks of age and breed (P ＜ 0.001), and there is interaction between wks of age and breed for eosinophils percentage (P ＜ 0.001). The percentage of heterophils/lymphocyte (H/L) ratio is highest at 8 week-old for the White Roman goose and the hybrid of Beidou White Goose LRI-2 and White Roman goose. Based on the viewpoint that H/L ratio represent as an animal stress indicator, it is suggested that the geese may be suffered physiology stress because of environment and management at 8 wks of age.

並列關鍵字

Growing period ； Breed ； Blood cell