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 ph...

livestock are an integral part of the agriculture sector and encompass a great impact on the national economy. an eco-friendly alternative to enhance production, prevent and treat disease conditions of animal is a great challenge for animal nutritionists. keeping farm animals healthy is necessary to obtain healthy animal products. the use of naturally occurring compounds like herbs, herbal prep...

Supplementing animal feed with antimicrobial agents to enhance growth has been common practice for more than 30 years and is estimated to constitute more than half the total antimicrobial use worldwide. The potential public health consequences of this use have been debated; however, until recently, clear evidence of a health risk was not available. Accumulating evidence now indicates that the u...

Antimicrobials have been used extensively as growth promoters (AGPs) in agricultural animal production. However, the specific mechanism of action for AGPs has not yet been determined. The work presented here was to determine and characterize the microbiome of pigs receiving one AGP, tylosin, compared with untreated pigs. We hypothesized that AGPs exerted their growth promoting effect by alterin...

To increase the production level of heterologous proteins in plants, strategies such as choice of strongerpromoters, optimization of codon usage and specific localization of foreign proteins are of major concern.Calcitonin (CT), a 32 amino acid polypeptide is a powerful and specific inhibitor of bone resorption and isused to treat several human diseases. Calcitonin activity is...

The growth-promoting effect of antibiotic growth promoters (AGPs) was correlated with the decreased activity of bile salt hydrolase (BSH), an intestinal bacteria-produced enzyme that exerts negative impact on host fat digestion and utilization. Consistent with this finding, independent chicken studies have demonstrated that AGP usage significantly reduced population of Lactobacillus species, th...

The use of antibiotics for animal growth promotion has been controversial because of the potential transfer of antibiotic resistance from animals to humans. Such transfer could have severe public health implications in that treatment failures could result. We have followed a risk assessment approach to evaluate policy options for the streptogramin-class of antibiotics: virginiamycin, an animal ...

The effect of using natural growth promoters (NGP) to replace traditional antimicrobials on performance, biometry digestive and reproductive organs, sexual maturity bone characteristics replacement pullets was evaluated; the relationship between these variables according diets verified. Eight-week-old birds were randomly assigned a completely randomized design fed different diets: negative cont...

The gut microbiome of animals varies by species, age, sex, and nutrition. content nutrients in the diet as well feed additives (synbiotics, eubiotics, phytobiotics) determine quantity quality intestinal flora. ban on use antibiotic growth promoters (AGP) has led to search for various effective alternatives that affect microbiome, animal health production results. It been shown fermented feeds, ...