Ảnh hưởng của phương thức nuôi đến tỷ lệ hao hụt mái, tiêu tốn thức ăn, năng suất trứng và hiệu quả kinh tế của vịt giống (Chiết Giang X cỏ) ở 21-22 tuần tuổi=A study on the impact of breeding methods on hen loss rate, feed consumption, egg yield and economic efficiency of commercial ducks (Chinese Zhejiang duck X grass-winged duck) at 21-22 weeks of age

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Tác giả: Thị Mỹ Phương Nguyễn, Nhân Phan

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Công thương, 2024

Mô tả vật lý: tr.322-327

Bộ sưu tập: Metadata

ID: 155731

Thêm vào giỏ

Đề tài được thực hiện tại trang trại vịt Đông Lợi, tỉnh Hậu Giang từ tháng 5 đến tháng 12 năm 2023 nhằm đánh giá một số chỉ tiêu sinh sản của vịt thương phẩm, giống vịt được lai tại từ vịt Triết Giang (Trung Quốc) và vịt cỏ cánh sẻ. Theo đó có tất cả 480 cá thể vịt mái được nuôi trong 2 lô theo phương thức chăn nuôi. Kết quả nghiên cứu cho thấy tuổi thành thục sinh dục ở vịt là 119-120 ngày tuổi, trung bình tuổi đẻ đầu tiên của quần thể là 119 ngày tuổi và tỷ lệ đẻ trứng đạt đỉnh cao ở 185 ngày tuổi. Năng suất trung bình của năm đẻ đầu là 274,56 - 278,2 quả/mái
tỷ lệ đẻ bình quân/năm là 76,18 - 76,36 %
khối lượng trứng ở tuần đẻ 21 đạt 64,31 - 64,55 gam. Các chỉ tiêu về chất lượng trứng của vịt thương phẩm (TP) tương đương với các giống vịt địa phương. Kết quả ấp nở cho thấy tuần đẻ thứ 10 tiêu tốn CP/10 (Protein thô) quả trứng từ 292,6 đến 296,4 g và tiêu tốn ME/10 (Năng lượng trao đổi) quả trứng là 4.235 đến 4.290 kcal.This study was carried out at the Dong Loi duck farm in Hau Giang province f-rom May to December 2023 to evaluate some reproductive indicators of commercial ducks that were cross breed f-rom Chinese Zhejiang duck and grass-winged duck. There were a total of 480 female ducks raised in two batches according to different breeding methods. The study’s results showed that the sexual maturity age of these ducks is 119-120 days old, and the egg laying rate peaks at 185 days old. The average yield of the first egg-laying year of these ducks is 274.56 - 278.2 eggs per hen. The average birth rate per year is 76.18 - 76.36 % and egg weight at the 21st week of laying reaches 64.31 - 64.55 grams. The egg quality criteria of commercial ducks are equivalent to those of local duck breeds. Hatching results showed that the 10th week of laying consumed CP/10 eggs f-rom 292.6 to 296.4 g and ME/10 eggs f-rom 4,235 to 4,290 kcal.

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