نتایج جستجو برای: biological products
تعداد نتایج: 736973 فیلتر نتایج به سال:
This study documented the use of chemicals and biological products in marine and brackish water shrimp farming in Thailand, the world's top producer of farmed shrimp. Interviews were conducted with 76 shrimp farmers in three major shrimp producing regions, the eastern Gulf coast, the southern Gulf coast and the Andaman coast area. Farmers in the study used on average 13 different chemicals and ...
The urgency of the investigated problem is due to fact that enzymatic compositions in diets agricultural mammals contribute better digestion nutrients, which allows increasing rate inexpensive raw materials ‘rich’ anti-nutritional factors without compromising health and productivity animal. article aimed at researching digestibility nutrients effect enzyme on cows, analysis changes live weight ...
A three-component reaction between 1,2-phenylenediamine, ferrocenecarbaldehyde, and isocyanides in the presence of a catalytic amount of p-toluenesulfonic acid for the synthesis of 3,4-dihydroquinoxalin-2-amine derivatives containing a ferrocene unit is reported. This approach is an effective procedure because the products have a broad spectrum of biological and pharmacological activities such ...
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