Snake pattern
Aliases: red snake, spot snake, leopard snake, colorful swallow, discus, colorful fish, colorful immortal
Family species: Sparidae
Water temperature: 20-28 ℃
Hardness: lower than 5dh
Ph value: 4.2-6.8
Among the descendants of brown colorful pine stone, one or two pine stones with finer stripes occasionally appear, and then Thailand and Penang will
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The reason why silkworms do not cocoon
1. Pathological factors. For example, purulent disease and malacia are easy to be infected before the upper cluster, which destroys the secretory function of silk glands of silkworm, or pathogens produce a large number of toxic metabolites in silkworm body, so that the nerves of silkworms are paralyzed and cannot be cocooned. 2, physiological factors. The first is the abnormality of the central silk gland, mainly because the feeding temperature is too high or too low, the leaf quality is too tender, the secretory gland is maladjusted, and the silk gland is abnormal, and the second is the abnormality of the anterior silk gland. it is mainly due to excessive exposure to bad gases such as gas, fishy gas, alcohol and so on.
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A brief discussion on the artificial midwifery technique of raccoon dog delivery
The pregnancy and delivery of raccoon dogs has a certain seasonality, which is generally delivered from March to May. The artificial midwifery technology can be used to solve the general dystocia in the process of delivery and ensure the normal delivery of pregnant mother raccoon raccoons. The phenomenon of false death of young raccoon dogs can be dealt with in time. The author introduces the delivery and midwifery technology of raccoon dogs for reference. 1 Prenatal preparation of mother raccoon dogs 5 days before the due date, choose dry, warm and wind-free, sufficient light, quiet environment, do a good job of cage disinfection, cleaning and hygiene for delivery;
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