ẢNH HƯỞNG CỦA PHƯƠNG THỨC NUÔI ĐẾN SINH LÝ SINH DỤC VÀ NĂNG SUẤT SINH SẢN CỦA LỢN TÁP NÁ

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Tác giả: Ngọc Hà Đỗ, Văn Huân Đỗ, Văn Nam Khương, Thị Ánh Tuyết Lê, Minh Phương Tống, Quốc Việt Trịnh

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học - Trường Đại học Hồng Đức, 2020

Mô tả vật lý: tr.99

Bộ sưu tập: Metadata

ID: 330009

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Nghiên cứu được thực hiện tại Thanh Hóa với mục tiêu xác định phương thức chăn nuôi thích hợp cho lợn Táp Ná sinh sản. Thí nghiệm được thực hiện trên 30 lợn nái Táp Ná hậu bị, bố trí ngẫu nhiên vào 2 lô nuôi theo 2 phương thức chăn nuôi khác nhau, mỗi lô gồm 15 con. Lô 1, lợn được nuôi tại nông hộ. Chuồng nuôi có nền gạch hoặc xi măng với diện tích 4,0 - 4,5 m2/con và sân chơi trên nền đất với diện tích 3,0 - 5,0 m2/con, sử dụng thức ăn tự phối trộn. Lô 2, lợn được nuôi tập trung tại trang trại, chuồng nuôi được thiết kế theo kiểu chuồng chăn nuôi lợn công nghiệp. Chuồng nuôi có nền xi măng hoặc nhựa cứng, có vòi uống nước tự động, diện tích (dài x rộng)/con: 0,6m x 1,8m, thức ăn sử dụng là thức ăn hỗn hợp hoàn chỉnh. Kết quả cho thấy: phương thức chăn nuôi có ảnh hưởng đến khối lượng động dục và khối lượng phối giống lần đầu của lợn Táp Ná nhưng không ảnh hưởng đến năng suất sinh sản của lợn Táp Ná. Nếu sử dụng các khẩu phần ăn cân đối và đảm bảo đầy đủ về số lượng, thành phần chất dinh dưỡng theo nhu cầu từng giai đoạn phát triển của lợn thì hoàn toàn có thể nuôi nhốt theo mô hình trang trại hoặc nuôi bán chăn thả theo mô hình chăn nuôi nông hộ mà không ảnh hưởng đến năng suất sinh sản của lợn.The study was conducted in Thanh Hoa province to determine suitable rearing methods for Tap Na reproductive sows. Experiments were conducted on 30 Tap Na gilts, randomly divided into 2 groups
each group included 15 Tap Na gilts. In the first group, pigs are raised in household. Floor cages were brick or cement with area of 4.0 m2 - 4.5 m2/head and a backyark with area of 3.0 m2 - 5.0 m2/head. Feed was self - mixed meeting nutritional requirement in each stage. In the second group, pigs were raised completely in farm. Floor cage was hard plastic or cement
water was supplied automatically
area of 0.6m x 1.8m
fed on commercial diet. The results showed that: rearing methods had significant effect on the body weight at the first oestrus age and the body weight of the first mating age, but did not significantly affect on the reproductive performance of Tap Na sows. If using a balanced diet, full of nutrients according to the needs of each stage growth of Tap Na gilts and Tap Na sows then it is possible to comletely keep in farm or keep in the household with the backyark without affecting on the reproductive performance.

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