Recommendation of some typical feed formulations for lactating sows
Lactating sow formula: corn 66.5%, bean cake 10%, peanut cake 10%, wheat bran 8%, fish meal 3%, bone meal 1.3%, shell powder 0.7%, salt 0.5%, plus multivitamins.
Suitable for lactating sows 1-20 days after delivery: corn 67%, wheat bran 8%, peanut cake 10%, bean cake 12%, bone meal 1.7%, shell powder 0.8%, salt 0.5%, plus oxytetracycline, multi-dimensional.
Suitable for lactating sows 20-30 days after delivery: corn 38%, bean cake 25%, wheat bran 10%, sorghum bran 25%, shell powder 1.4%, salt 0.6%, green fodder 2.94%.
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How to prevent the death of chicken embryos before shell pecking
In the process of hatching, it is common for normal chicken embryos to be suffocated before shell pecking due to various factors, such as excellent eggshell, limited movement space of chicken embryo head or far mouth tip from eggshell. So, how to prevent this kind of phenomenon from happening? 1. Turn the eggs. The first 10 days of incubation is the key period for the location of the blastocyst. In order to make the embryo's eye spot and head develop along the blunt end shell edge of the breeding egg, in order to facilitate the chick's mouth tip to peck the shell, the egg should be turned frequently at this stage. The blunt end of the egg should be kept upward during operation.
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Control of Haemophilus parasuis in Pigs
In recent years, with the invasion of immunosuppressive diseases such as blue ear disease and circovirus disease to varying degrees, and the "aiding evil" of mycoplasma disease, another immunosuppressive disease in most pig farms, the immunity and resistance of pigs have been seriously reduced, and the phenomenon of mixed infection of the disease is very common. In the technical service, we found that Haemophilus suis often appeared as a secondary and concurrent infection in the nursery and growth house of some pig farms, which greatly increased the death rate of pigs and caused huge losses to pig farms.
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