00800nam a2200205Ia 4500 CTU_230901 210402s9999 xx 000 0 und d 240000 636.6862 Ch513 Nguyễn, Chung Nghề "đãi vàng" từ chim Yến Nguyễn Chung Hà Nội Nông nghiệp 2019 Giới thiệu chung về chim yến, kỹ thuật ấp nở và nuôi nhân tạo chim yến con, kỹ thuật xây dựng, lắp đặt trang thiết bị và vận hành nhà yến. Finches,Chim yến Feeding and feeds,Ăn và thức ăn Trung tâm Học liệu Trường Đại học Cần Thơ