亞熱帶環境下撒能與阿爾拜因乳羊之泌乳性能

本試驗調查在亞熱帶環境下，撒能及阿爾拜因乳羊之泌乳等性狀。在2003～2005年之間總共收集319頭乳羊之泌乳資料，供泌乳性能分析。在全期平均泌乳天數方面，兩品種分別為240.6天及242.1天，品種之間無差異。初產母羊與經產母羊之全期平均泌乳天數方面亦無差異。兩品種之平均每日泌乳量分別為1.81 kg及1.95 kg，阿爾拜因母羊顯著地優於撒能母羊（P ＜ 0.05）。撒能及阿爾拜因母羊之全期總乳產量分別為444.4 kg與467.0 kg，品種間無差異存在。在乳成分分析方面，乳脂肪率、乳蛋白率、乳糖率及乳總固形物率，兩品種分別為3.19% vs. 3.51%、3.04% vs. 3.23%、4.38% vs. 4.27%、10.81% vs. 11.10%，品種間差異顯著（P ＜ 0.05），阿爾拜因乳羊有較高的乳脂肪率、乳蛋白質率及乳總固形物率，而撒能乳羊則有較高的乳糖率。在乳體細胞數方面，兩品種之乳體細胞數分別為1946 × 10^3 vs. 1875 × 10^3，品種間差異不顯著。

關鍵字

撒能乳羊；阿爾拜因乳羊；泌乳性能

並列摘要

The purpose of this study was to investigate the milking performance of Saanen and Alpine dairy goats in the subtropical environment of Taiwan. These data were collected from 319 head of dairy does from 2003 to 2005. The lactation duration of both breeds were 240.6 and 242.1 days, respectively. There was no difference between first parity and multiple parities for both breeds. The daily milk production and whole lactation production of Saanen and Alpine goats were 1.81 kg vs. 1.95 kg (P ＜ 0.05) and 444.4 kg vs. 467.0 kg, respectively. It seemed that Alpine had higher milk production than Saanen. The milk fat, milk protein, milk lactose and total solids contents of Saanen and Alpine goat milk were 3.19% vs. 3.51%, 3.04% vs. 3.23%, 4.38% vs. 4.27%, 10.81% vs. 11.10%, respectively(P ＜ 0.05). Saanen had slightly higher milk lactose percentage than that of Alpine. The somatic cell counts of goat milk were not different between the two breeds.

並列關鍵字

Saanen dairy goat ； Alpine dairy goat ； Lactation performance

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