First, catch Qiu Jin, promote ovulation of cow estrus.
From August to October, it …
Chen Youguang (Shandong Institute of Freshwater Fisheries, Jinan 250117)
(I) Technical Ov…
(I) Technical Ov…
Under the support of the National 863 Program, the scientific and technological breakthrou…
Clever selection: On the one hand, we must pay attention to the use of pesticides with strong …
The purchase of pesticides depends on the presence of active ingredients in addition to th…
Stephanitis scott. is a hemiptera Meliidae insect, widely distributed, and is a major pest of …
Root rot first open the roots of the roots of the fruit tree, exposing the roots, scraping the…
(A) Poultry's Physiological Structure Characteristics Poultry reproduction is oocyte. Ovum…
In recent days, rice varieties “De Runsheng†brand rice that has been improved…
The reasons for the damage caused by the vegetables in the first place are the misuse of p…