this experiment was conducted to evaluate the effects of different levels of nettle (urtica dioica) a medicinal plant in starter and grower feeds on performance, carcass traits, blood biochemical and immunity parameters of broilers. a completely randomized design was used with 324 broilers (ross-308) divided in nine treatments and three replicates (with 12 birds in each replicate) 1 to 42 days....

The medicinal plants and herbs have been used for many years in the treatment of various diseases in animals and human beings. Now-a-days, utilization of these medicinal plants is increasing. These are used in animal feed as the growth promoters. Due to prohibition of most of the antimicrobial growth promoters in animal feed because of their residual effects, plant extracts are becoming more po...

Phytobiotics represent a wide range of bioactive compounds that can be extracted from various plant sources. In recent years, some interesting and novel applications of phytobiotics in the production and well– being of monogastric animals have emerged, and these aspects are reviewed in the present paper. Recent studies at the University of New England indicate that water–soluble carbohydrate ex...

Use of antibiotics as growth promoters in animal feeds has been permitted in the member states of the European Union during the last 50 yr. However, concerns about development of antimicrobial resistance and about transference of antibiotic resistance genes from animal to human microbiota, led to withdraw approval for antibiotics as growth promoters in the European Union since January 1, 2006. ...

By Peter Hughes and John Heritage, University of Leeds, UK There has been a developing controversy surrounding the use of antibiotics as growth promoters for food animals. These drugs are used at low doses in animal feeds and are considered to improve the quality of the product, with a lower percentage of fat and a higher protein content in the meat. Other benefits of the use of antibiotic grow...

During the past 50 years, the livestock and poultry industries have developed in several areas including nutrition, genetics, engineering, management, and communications to maximizing the efficiency of growth performance and meat yield. Now these industries must focus more attention on how animal agriculture affects the environment and food safety. As in many other industries, the global paradi...