The use of traditional chemical catalysis to produce chemicals has a series of drawbacks,such as high dependence on fossil resources,high energy consumption,and
Trichoderma is an ascomycete fungal genus widely distributed in the soils.Several species were selected,engineered and utilized for protein production for decad
Biopharmaceuticals,such as proteins,peptides,nucleic acids and vaccines,bring about great hopes for the prevention and treatment of various diseases,but the ind
Terpenoids are a class of high value-added natural products with a variety of biological functions.Genetically engineered microorganisms,such as those of Escher
Animal-derived protein production is one of the major traditional protein supply methods,which continues to face increasing challenges to satisfy global needs due to population growth,augmented individual protein consumption,and aggravated environmental p
Downstream processing or product recovery plays a vital role in the development of bioprocesses.To improve the bioprocess efficiency,some unconventional methods are much required.The continuous manufacturing in downstream processing makes the Process Anal
草地退化原因有自然因素和人为因素造成的,气候变化是引起草地退化的重要自然原因,其中降水量的变化尤其重要;人为因素是超强度放牧和滥垦、滥采和滥挖是草地退化的外在原因,
Cells employ proteins to perform metabolic functions and maintain active physiological state through charge transfer and energy conversion.These processes are c
现阶段,我国养猪业向规模化养殖发展日益显现,但部分养殖场仍然在低水平徘徊,主要原因:一是经营者自身素质亟待提高,如小农经济意识、夜郎自大秉性、漠视生猪福利的观念等。二是猪场养殖设施落后,设计不科学。三是养猪理念的错位,突出的表现是片面追求高饲料报酬、高产仔数、高瘦肉率,这种无节制的索取,超出了猪的承受力,猪以频繁发病、高病死率来警示人类。
为了保证鸡蛋的质量和安全,需要做好雏鸡的养殖工作。对此,本文针对雏鸡养殖过程中常见的病害进行分析,并对雏鸡的诊治要点进行探讨,旨在提高雏鸡的生产质量和效率,提高鸡蛋的安全等级,保证雏鸡产业的有效发展。