How old is the dog when he wants to get married?
When puppies reach a certain age after birth, male dogs can produce sperm with the ability to fertilize, which is called sexual maturity. Maturity does not mean that it is possible to reproduce, because the dog is not yet fully mature. About 12 months of age is the appropriate time to start breeding.
In general, the sexual maturity of small dogs is earlier, while that of large dogs is later.
It is generally believed that sexual maturity is 8-12 months old after birth, and there are 6 months earlier. It's different all over the country. Small and medium-sized dogs aged 1-1.5 years old, the survival rate of reproduction is high, and it is most suitable for large dogs to start breeding at the age of 2.
Dogs are single estrus animals and do not repeat oestrus. Normal estrus occurs twice a year, and most dogs have estrus once in March, April and September and October in Autumn.
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How to identify the health of big silkworms
First, when sniffing into the silkworm room, smell the smell of the silkworm room. If the silkworm room has only the fresh smell of mulberry leaves, but no other peculiar smell, it shows that the silkworm is disease-free. Second, after listening to mulberry with your ears, if you hear the sound of silkworms eating mulberry like a light rain, it shows that the big silkworms are healthy. Third, observe the body color of silkworms with your eyes, and the body color of healthy silkworms is generally blue and white. The skin of eating silkworms is tense and shiny, and the action is lively, raising the head and chest at rest; the dorsal vascular segment beats rhythmically; the population develops in the same size; feces have a certain shape (except mature silkworms).
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Through the observation of bee body diagnosis and treatment of bee disease.
Sick bees often show dementia, slow response, loss of energy, unable to take off, look uneasy, live on one side or crawl slowly inside and outside the box. Head. Healthy bees move their heads freely, and when they shake their heads and tickle, there may be parasites such as bee mites. Wing. Healthy bees have intact wings, open and close freely, fly freely, diseased bees have incomplete wings, or flutter and tremble, lose the ability to fly, some young bees have curly wings, most of them suffer from curly wing disease, and the incomplete wings are mostly caused by bee mites.
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