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What Is the Dog Birth Process Like? A Detailed Guide to the Full Whelping Process in Female Dogs
Dogs are polytocous animals, and because breeds differ, the number of puppies per litter also varies. Generally, small breeds have 1-4 puppies per litter, at most 6. Medium and large breeds usually have 6-9, at fewest 1-2, at most 12-13, and the recorded maximum is 25. Whelping in dogs occurs through contractions of the uterus and the abdominal wall muscles and diaphragm, which push out the fetuses and their associated tissues. The contractions of the uterus come in waves, with intervals, so uterine contractions are usually called "labor pains." The contractions of the abdominal wall muscles and diaphragm are called "straining." Stra
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What are the patterns of silkworms spinning silk and forming cocoons? A full explanation of the process
The life of a silkworm goes through 4 stages: egg, larva, pupa and adult. The larval stage of the silkworm is what people call the silkworm baby stage. What is usually called sericulture refers to the rearing of the larvae. From hatching to cocoon spinning, the larva must go through 4 molts. People therefore divide the course of the larva into 5 instars. During the period before molting, the silkworm does not eat or move, which is called sleeping. From the first to the fourth instar, the silkworm must sleep 4 times; in the later stage of the fifth instar, it no longer sleeps, but spins silk and forms a cocoon, and pupates inside the cocoon, thereby completing the larval stage of the silkworm. Newly hatched silkworms are called ant silkworms, and newly molted
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How is dried small shrimp processed? A full analysis of dried small shrimp processing technology
Main raw materials: Acetes shrimp, table salt, etc. Equipment and tools: iron wok, baskets, flow-through stove. Production method: Grade and sort the Acetes shrimp; those containing more impurities should be sifted with a sieve; if the raw materials are not clean, they should be washed, and after washing, place them in baskets to drain, with each basket holding about 6 kg of Acetes shrimp. The following methods can be used for cooking: ① Basket-rotating cooking method. That is, fill a large iron wok with a diameter of 90 cm seven-tenths full with fresh water, add 2 kg of table salt, and after bringing to a boil, sprinkle an appropriate amount of table salt onto the shrimp basket after the shrimp have been placed in the basket and drained
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