Lượng ăn vào và khả năng sinh trưởng của ba tổ hợp bò lai giữa đực Charolais, Droughtmaster và Red Angus với cái lai Brahman nuôi trong nông hộ tỉnh Quảng Ngãi

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Văn Dũng Đinh, Đình Phùng Lê, Thị Mỹ Linh Nguyễn, Xuân Bả Nguyễn, Hồng Sơn Phạm, Ngọc Long Trần, Ngọc Phong Văn

Ngôn ngữ: vie

Ký hiệu phân loại: 636.232 Beef breeds

Thông tin xuất bản: Nông nghiệp & Phát triển nông thôn, 2020

Mô tả vật lý: 96 - 108

Bộ sưu tập: Metadata

ID: 494033

Thêm vào giỏ

Nghiên cứu này được tiến hành nhằm đánh giá hiện trạng nuôi dưỡng và khả năng sinh trưởng của các tổ hợp bò lai giữa đực Charolais, Droughtmaster và Red Angus phối tinh với cái lai Brahman nuôi trong nông hộ. Đánh giá hiện trạng nuôi dưỡng được tiến hành trên 90 hộ (30 hộ/tổ hợp bò lai và 10 tổ hợp lai/xã). Đánh giá khả năng sinh trưởng thông qua khối lượng và kích thước một số chiều đo cơ thể của 246 bê/bò từ sơ sinh đến 18 tháng tuổi. Kết quả nghiên cứu cho thấy lượng vật chất khô, protein và năng lượng trao đổi ăn vào của bê/bò là phù hợp với khối lượng của bê/bò. Khối lượng, kích thước các chiều đo của các tổ hợp lai từ sơ sinh đến 18 tháng tuổi cao nhất là tổ hợp lai Charolais x Lai Brahman: sơ sinh 28,6 kg và 18 tháng tuổi là 361,7 kg
tiếp đến là tổ hợp lai Red Angus x Lai Brahman: sơ sinh 27,5 kg và 18 tháng tuổi là 339,7 kg
thấp nhất là tổ hợp lai Droughtmaster x Lai Brahman: sơ sinh 27,2 kg và 18 tháng tuổi là 319,0 kg. Bê/bò đực có khối lượng, kích thước các chiều đo cao hơn bê/bò cái ở tại các độ tuổi khác nhau. Các chỉ số hình thể (dài thân, tròn mình, khối lượng) phản ánh đây là 3 tổ hợp bò lai theo hướng sản xuất thịt rất rõ rệt. Như vậy, khả năng sinh trưởng của 3 tổ hợp bò lai giữa đực Charolais, Droughtmaster và Red Angus với cái lai Brahman nuôi trong nông hộ tỉnh Quảng Ngãi là tương đối tốt.This study was conducted to evaluate the feeding status and the growth performance of crossbred cattle between Brahman crossbred cows and Charolais, Droughtmaster and Red Angus bulls at smallholders in Quangngai province. Feeding status study was conducted on 90 households (30 households/crossbred genotype). Growth performance was assessed by live body weight and body dimensional measurements of 246 cattle from birth to 18 months of age. Results showed that dry matter, crude protein and metabolic energy intake of cattle is consistent with their live body weight. The live body weight and body dimensions of cattle from birth to 18 months of age are the highest in crossbred genotype (Charolais bulls x Brahman crossbred cow: birthweight 28.6 kg and 361.7 kg at 18 months of age), followed by crossbred genotype (Red Angus bulls x Brahman crossbred cows: birthweight 27.5 kg and 339.7 kg at 18 months of age), the slightly lower in crossbred genotype (Droughtmaster bulls x Brahman crossbred cows: birthweight 27.2 kg and 319.0 kg at 18 months of age). Male crossbred cattle grow faster than female ones. The body shape indexes (body length index, round body index, weight index) indicated that these crossbred cattle genotypes are beef oriented genotypes. It can be concluded that the growth ability of crossbred cattle between Charolais, Droughtmaster and Red Angus bulls crossbred with Brahman crossbred cows at smallholder farmers in Quang Ngai province are good.

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