protein and energy are the two major components of feed that influence performance of the growing and fattening lambs. provision of the quality of protein in the lamb’s diet does not only improve the animal performance but also ensures profitable animal production. different vegetable protein sources are used to formulate the rations for growing and fattening lambs. these protein sources differ...

Background & Aim: Feed additives have been widely used to stimulate appetite, improve growth performance and immune system function in livestock nutrition. For many years antibiotics have been used in livestock production to improve growth performance. Following the ban on the use of antibiotic growth promoters in animal feeds in European Union and increasing demand for organic...

The rapid economic growth of China features boom of the non-state sector and relative stagnancy of the state-owned enterprises (SOEs). These macro statistics themselves do not justify the popular belief that non SOEs will definitely continue to outperform SOEs and that accordingly SOEs should be transferred to other types of ownership as soon as possible. The performances of both economic secto...

background : this study was carried out to evaluate activities in different branches of science in iran compared to other countries over the past 35 years. methods : e ssential science indicators (esi ) and web of science from (thomson reuters isi) and scimago journal & country rank (sjr) were searched for scientometrics data . esi indicated place of iran among other countries in all 22 scienti...

this study was carried out to evaluate the effects of different dietary protein (30, 35, 40%) and lipid levels (10, 12, 14%) on growth performance and physiological changes of juveniles caspian kutum (rutilus frisii kutum). six hundred and seventy five fish (1.15 ± 0.01 g) were distributed into 27 aquaria (45 l) and were fed four times daily for 8 weeks. interaction between protein and lipid di...

Background & Aim: Feed additives have been widely used to stimulate appetite, improve growth performance and immune system function in livestock nutrition. For many years antibiotics have been used in livestock production to improve growth performance. Following the ban on the use of antibiotic growth promoters in animal feeds in European Union and increasing demand for organic...

the application of nanotechnology in drug delivery and a variety of supplements is very impressive. in this regard, the use of this knowledge can be effective in the performance of medicinal plants in aquaculture. in the present study aloe vera was extracted and its nanoparticles were produced. three levels of aloe vera nanoparticles in siberian sturgeon (acipenser baerii) were evaluated for th...