(1) Feeding management before mating
The central task for the breeding and management of the breeding period is to promote the normal development of the reproductive organs, adjust the appropriate body condition, and ensure that the otters enter the breeding period in due course. F.......
Annona berry fruit failure is a dangerous disease that threatens the fruit of Annona sinensis. It occurs in many areas of Guangdong, Guangxi and other places. The incidence rate of diseased orchards in the severely infected plant reaches 100%, and the yield is reduced by 28% to 35%.
Vegetable virus harm has become the second largest disease after fungal diseases, causing great losses to vegetable production every year. In recent years, the area of ​​vegetables in the off-season has been expanded, coupled with seed-borne infections and suitable climatic c.......
The tense summer harvest and summer planting work has come to an end. In the busy season, the peasants have set up farm machinery and equipment for the peasants, and it is time for them to “recover the restâ€.
However, in the countryside, the author discovered that some .......
First of all, the base of the pump should be firm and the length of the suction pipe should be as short as possible.
Second, the inlet pipe should be sealed and reliable. The bottom v.......
Proteins are the main constituent materials of organisms, and the three-dimensional structure of proteins is the key to the function of proteins. However, the three-dimensional structure of proteins can be damaged by sensitive reactions due to slight environmental changes such as temperatu.......