What should I do if the sow is not suitable for breeding?
The unbreeding of sows may be caused by malformed reproductive organs, malnutrition or obesity. Congenital dysplasia of reproductive organs or abnormal pigs should be eliminated in time. For nutrition deficiency, it is necessary to increase dietary protein, vitamins, minerals and other nutrients, and strengthen exercise. Over-fat sows should lose weight, reduce diet or increase roughage, and feed more green fodder.
Sow mating method:
1. Single match
A boar is used only once in a sow's estrus. The advantage is that it can reduce the burden of boars, raise fewer boars, improve the utilization rate of boars, and reduce production costs. Its disadvantage is that it is difficult to master timely mating, which may reduce the conception rate and litter size.
2. Compound
It is a common way of breeding in production that the same boar is mated twice during a period of estrus in sows. After the first mating, after 24 hours, there are often more active sperm in the reproductive tract of sows, increasing the chance of combining with eggs, thus increasing the conception rate and litter size.
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How do turtledoves divide male and female?
If you want to tell the difference between the male and female turtledoves, you can look at the tail, listen to the call, touch the keel, touch the keel. The sound of the male turtledove is louder, while the female turtledove is softer; the short keel is basically the female turtledove and the long one is the male turtledove. How to divide the male and female of the turtledove 1. Look at the tail: male bird
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How long can the tap water be kept for fish farming?
Tap water can be used to raise fish for 2-3 days. In the actual feeding, in order to keep the fish tank clean and oxygen sufficient, it is necessary to change the water frequently. In order not to drastically change the water quality and water temperature, the method of mixing water is generally used to change the water, not to change the place at once.
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