Feed for sows in pre-breeding period and feed for sows in post-breeding period
A feed and sow technology, which is applied in the field of sow breeding, can solve the problems affecting the number of sows and the birth weight of piglets and the major birth weight of piglets.
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Embodiment 1
[0052] Embodiment 1 Feeding of foreign binary (long × large) pigs
[0053] Select 46 foreign binary (long × large) pigs with similar gestational age and the same mating age (can be purchased from Shanghai Breeding Pig Farm or Shanghai Xiangxin Livestock and Poultry Co., Ltd.), and divide them into the experimental group (24 pigs) and the control group (22 heads), using the same feeding methods, disease prevention and control measures and other feeding and management measures when raising sows in the same conventional manner, using the feeds of the experimental group and the control group shown in Table 1 to raise respectively, from 5 days before mating to gestation Feed with pre-feeding for 89 days, and feed with post-feeding from 90 days of pregnancy to the end of lactation (25 days after delivery). Among them, the pre-feed and post-feed used in the experimental group are respectively the feed for sows in the early stage of reproduction and the feed for sows in the later stag...
Embodiment 2
[0064] The raising of embodiment 2 Shanghai white pigs
[0065] Select 42 Shanghai White pigs with similar gestational age and same mating age, and divide them into experimental group (21 pigs) and control group (21 pigs). Management measures, use the feed of the experimental group and control group shown in Table 1 to feed respectively, use the pre-feed from 5 days before mating to 89 days of pregnancy, and use the post-feed from 90 days of pregnancy to the end of lactation (postpartum 28 days). Among them, the pre-feed and post-feed used in the experimental group are respectively the feed for sows in the early stage of reproduction and the feed for sows in the later stage of reproduction prepared according to the mathematical model of the early stage and the later stage of the present invention. The pre- and late-stage feeds used in the control group were common original field feeds.
[0066] Table 3 Feed formula and nutritional level of Shanghai white pig experimental grou...
Embodiment 3
[0074] The raising of embodiment 3 Meishan pigs
[0075] Select 100 Meishan pigs with similar gestational age and same mating age, divide them into experimental group (50 heads) and control group (50 heads), adopt the same feeding methods, disease prevention and control measures and other feeding management as when sows are raised conventionally Measures, use the feed of the experimental group and control group shown in Table 1 to feed respectively, use the pre-feeding from 5 days before mating to 89 days of pregnancy, and use the post-feeding from 90 days of gestation to the end of lactation (postpartum 30 days). Among them, the pre-feed and post-feed used in the experimental group are respectively the feed for sows in the early stage of reproduction and the feed for sows in the later stage of reproduction prepared according to the mathematical model of the early stage and the later stage of the present invention. The pre- and late-stage feeds used in the control group were c...
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