Năng suât sinh san của nhóm lợn nái Đan Mạch

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Tác giả: Khoa học Kỹ thuật Chăn nuôi

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Kỹ thuật Chăn nuôi, 2023

Mô tả vật lý: tr.29-34

Bộ sưu tập: Metadata

ID: 337121

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Nghiên cứu được thực hiện nhằm đánh giá năng suất sinh sản của nhóm lợn nái có xuất xứtừ Đan Mạch. Đối tượng được khảo sát là 89 con lợn nái lai LY/YL được phối với lợn đực Duroc.Kết quả nghiên cứu cho thấy (i) Số lợn con khác biệt không có ý nghĩa thống kê (P>
0,05) giữa cácnhóm lứa đẻ ở các thời điểm từ sơ sinh đến 21 ngày tuổi, mặc dù số lợn con cao nhất ở nhóm lợnnái trên 4 lứa đẻ, kế tiếp là nhóm lợn nái 2-4 lứa đẻ và thấp nhất nhóm lợn nái ở lứa đẻ thứ nhất
(ii)Khối lượng lợn con tăng dần theo độ tuổi, lợn đực nặng hơn lợn cái ở tất cả các nhóm lứa đẻ nhưngkhông có khác biệt có ý nghĩa thống kê giữa các lứa đẻ ở thời điểm sơ sinh và 21 ngày tuổi. Ở 7 và14 ngày tuổi, lợn con có khối lượng cao nhất ở nhóm nái trên 4 lứa đẻ và thấp nhất ở nhóm lứa đẻ 1(P<
0,05)
(iii) Có 43,82% lợn nái có vấn đề sinh sản, chủ yếu là thai chết lưu, trong khi có 6,44% thaihoặc lợn con có vấn đề, do các nguyên nhân như thai gỗ, thai bị ngộp, bị lợn mẹ cắn hoặc bị đè vàlợn con nhẹ cân và (iv) Tỷ lệ lợn con mắc tiêu chảy cao nhất ở giai đoạn từ sơ sinh đến 7 ngày tuổi(2,25%), thấp nhất ở giai đoạn 14-21 ngày tuổi (0%). Tất cả lợn con bị tiêu chảy đều được điều trịvới tỷ lệ khỏi bệnh là 100%.Reproductive performance of Danish sows’ groupThe study was conducted to evaluate the reproductive performance of a group of Danishsows’ group. A total of 89 LY/YL crossbred sows bred with Duroc boars was observed in this study.The results showed that (i) the number of piglets was not statistically significant (P>
0.05) amongthe parity groups at the time from birth to 21 days of age, although the number of piglets washighest in the group of parities above 4, followed by the group 2-4 parities and lowest in group offirst parity
(ii) The live weight of piglet increased with age and boars are heavier than sows in allparitiy groups although there was no significant difference among the parities at birth and 21 daysof age. At 7 and 14 days of age, the weight of piglet was highest in the group of parities above 4 andlowest in the group 1st parity (P<
0.05)
(iii) There was 43.82% of sows with reproductive problems,mainly stillbirth foetuses, while 6.44% of foetuses or piglets have problems, due to problems ofwooden foetuses, asphyxiated foetuses, bitten or crushed by the mother sow and low birth weightpiglets and (iv) The percentage of piglets with diarrhea was highest in the period from birth to 7days of age (2.25%) and lowest at 14-21 days of age (0%). All piglets with diarrhea were treated witha success rate of 100%

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