NGHIÊN CỨU CHỌN LỌC CÁ THỂ LỢN ĐỰC GIỐNG VÀ CÁI SINH SẢN TỪ 3 GIỐNG THUẦN DUROC, PIÉTRAIN VÀ LANDRACE LÀM NGUYÊN LIỆU CHO LAI TẠO ĐỰC LAI CUỐI CÙNG

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Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2020

Mô tả vật lý: tr.149-154

Bộ sưu tập: Báo, Tạp chí

ID: 292734

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Nghiên cứu cho lai tạo giữa các giống lợn cao sản nhập nội Duroc (D), Piétrain (P) và Landrace (P) để tạo ra những con lai có ưu điểm đặc biệt về năng suất, chất lượng sản phẩm đã và đang được quan tâm. Mục đích của nghiên cứu này là chọn lọc được các cá thể đực giống và cái sinh sản thuộc 3 giống trên để làm nguyên liệu lai, tạo ra đực giống lai cuối cùng phục vụ cho sản suất lợn thương phẩm có năng suất, chất lượng cao. Nghiên cứu được thực hiện trên 120 cá thể của 3 giống D, P, L về các chỉ tiêu năng suất (tăng khối lượng, dày mỡ lưng). Dữ liệu này được sử dụng để ước tính giá trị giống - GTG và tính chỉ số chọn lọc – Inx cho mỗi giống theo chương trình VCE5 và PIGBLUP. Kết quả nghiên cứu cho thấy các nhóm cá thể đều có Inx cao hơn 100 điểm và GTG >
0 đối với tính trạng tăng khối lượng
GTG<
0 đối với tính trạng dày mỡ lưng. Chứng tỏ tiềm năng di truyền của các cá thể đều vượt trên trung bình của đàn giống khi được đánh giá về 2 tính trạng sinh trưởng và dày mỡ lưng. Kết quả nghiên cứu về GTG và Inx của 120 cá thể đã giúp chọn lọc ra được 7 đực và 15 cái/giống tốt nhất để làm nguyên liệu lai tạo đực lai cuối cùng.Research to cross between three remarkable exotic pig breeds as Duroc (D), Piétrain (P) and Landrace (L) for creating cross-breeds with hight quantity and quality meat product have been interesting. The purpose of research is selecting individual boars and sows for cross-bred materials of terminal boars which using to produce commercial pigs with hight quantity and quality meat. The research was implemented on 120 individuals of pure breed of D, P, L with monitoring indicators of individual productivity, such as body weight gain (BWG) and back fat thick layer (BFTL). This data will be use to evaluate of breeding value - BV and selection index - Inx for each breed following the VCE5 and PIGBLUP programme. The research results showed that all of individual groups had Inx above 100 points, and BV>
0 (with BWG), BV<
0 (with BFTL). These results proved that the genetic potential of all individuals were higher the average of all breed heads when evaluated about two characteristics of BWG and BFTL. The research results on BV and Inx of 120 individuals helping to picked out the best of 7 boars and 15 sows for each breed group as cross-bred material for terminal boars.

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