an experiment was conducted to assess the influences of different growth promoters on performance, carcass characteristic and intestinal microflora of broiler. day-old broiler chicks from arian strain (384) were used in the completely randomized experimental design during 7-42 days of age. eight rations were formulated as a follow 1: control (without growth promoters); 2-control + formic acid (...

The maintenance and enhancement of body composition is an energy-dependent process and is impossible without an adequate supply of energy and protein. In certain circumstances, alteration of the normal pattern of protein deposition and metabolism may be considered necessary. Drugs have been used with some success in attaining this end in three distinct clinical areas. First, they are proving ef...

The maintenance and enhancement of body composition is an energy-dependent process and is impossible without an adequate supply of energy and protein. In certain circumstances, alteration of the normal pattern of protein deposition and metabolism may be considered necessary. Drugs have been used with some success in attaining this end in three distinct clinical areas. First, they are proving ef...

In pig production, the terms "growth promoter", "performance enhancer", and "digestive enhancer" include a diverse range of products ranging from simple chemicals (copper salts) to chemically produced antibacterial compounds (carbadox) to antibiotics (tylosin, avilamycin, salinomycin, virginiamycin). Most of the antibiotic group are produced during a fermentation process by yeasts, moulds, and ...

The maintenance and enhancement of body composition is an energy-dependent process and is impossible without an adequate supply of energy and protein. In certain circumstances, alteration of the normal pattern of protein deposition and metabolism may be considered necessary. Drugs have been used with some success in attaining this end in three distinct clinical areas. First, they are proving ef...

Sir, I was dismayed to see that Phillips et al. were defending what nearly all microbiologists know are grave abuses of antibiotics— their continuous use in feed as growth promoters and the needless widespread use of broad spectrum agents (fluoroquinolones). This is despite their acknowledgement that ‘the more an antibiotic is used, the more likely are resistant populations to develop’ and that...

The maintenance and enhancement of body composition is an energy-dependent process and is impossible without an adequate supply of energy and protein. In certain circumstances, alteration of the normal pattern of protein deposition and metabolism may be considered necessary. Drugs have been used with some success in attaining this end in three distinct clinical areas. First, they are proving ef...

investigation into total phenolics and their spectrum in the buds and corms of saffron crocus and a study of polyphenol oxidase changes in the apical bud during different stages of growth and development showed that changes in the growth and development of the apical bud may be related to changes in the composition of phenolics in the corm. a sudden intense change in content and kind of phenoli...