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奶羊

奶羊

奶羊

1

Nine -year-old Bella , seven-year-old Sophia, and six-year-old Olivia milk the dairy goats and put out feed and water .

9 岁的贝拉、7 岁的索菲亚和 6 岁的奥利维亚负责为奶羊挤奶，供应饲料和水。

2

Nigerian Dwarf goat is a miniature dairy goat breed of West African ancestry .

这种尼日利亚矮山羊源自西非小奶羊的后裔。

3

But even than(then) they are smaller than most sheep and milk those(goats).

他们比许多绵羊和奶羊个头小。

4

But even then they are smaller than most sheep and milk goats .

但即使如此，它们也依然比大多数的山羊和奶羊要小得多。

5

They reach full maturity when they are a little more than two years old . But even then they are smaller than most sheep and milk goats.

在它们两岁时就完全成熟了，但个头还是比大多数绵羊和奶羊要小。

7

Study of mechanism on immune response in goats by different immunization with Helicobacter pylori and analyse of its prospects for using

幽门螺杆菌免疫奶羊的免疫应答机制及其应用前景分析

8

Studies of immune response in goats by different immunization with Helicobacter pylori

幽门螺杆菌免疫奶羊的应答性实验研究

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