Antibiotics have been included in the formulation of feed for livestock production for more
than 40 years as a strategy to improve feed conversion rates and to reduce costs. The use of …

Simple Summary There are diverse challenges in the poultry production industry that
decrease the productivity and efficiency of poultry production, impair animal welfare, and …

Naturally occurring plant compounds including tannins, saponins and essential oils are
extensively assessed as natural alternatives to in-feed antibiotics. Tannins are a group of …

Tannins are polyphenols characterized by different molecular weights that plants are able to
synthetize during their secondary metabolism. Macromolecules (proteins, structural …

Natural extracts are frequently adopted as a valuable alternative to antibiotics in intensive
animal farming. Their diverse bioactive constituents such as phytosterols, glucosinolates …

Tannins are well known as anti-nutritive factors that hinder the utilization of feeds by
monogastric animals especially poultry. Tannins depressed growth rate and feed utilization …

Antimicrobial restrictions prompted the search for cost and biologically effective alternatives
to replace antimicrobial growth promoters (AGPs) in food-producing animals. In addition, the …

Feed and water supplementation with powdered hydrolyzable tannins from chestnut
represents a valuable alternative strategy to antibiotics in animal nutrition. In this study, we …

Broiler chickens were fed nutritionally adequate diets supplemented with condensed tannins
(CT) extracted from grape seed by a proprietary process. Dose rates of CT were 0, 2, 5, 10 …

In 2 broiler trials, the effects of chestnut tannins on performance and meat quality (trial 1),
and digestion (trial 2) were evaluated. In both trials, Ross 308 broilers received one of 2 …