Ractopamine as a metabolic modifier feed additive for finishing pigs: a review

Humic acid as a feed additive in poultry diets: a review

Many studies tested different feed additives, among these additives, humic substances (HS) have been used in livestock and poultry diets. Humic substances commonly present in nature as they are created from the organic matter decomposition, and are normally found in the soil and natural water. Active components of HS consist of humic acid (HA), humus, ulmic acid, fulvic acid, humin and certain ...

Muscle protein metabolism in finishing pigs fed ractopamine.

Forty crossbred barrows (average initial weight, 66.4 kg) were utilized to determine the effects of ractopamine (a phenethanolamine/beta adrenergic agonist) on protein accretion and synthesis, activities of cathepsins B, H, L and calcium-dependent proteinase and nucleic acid content of semitendinosus muscle (ST). All pigs were offered a 16% protein, mineral and vitamin fortified corn-soybean me...

Ractopamine for Pigs: A Review about Nutritional Requirements

Heavy weight pigs tend to deposit greater quantities of fat than protein. To work around this situation, ractopamine has been used in the finishing stage. In environments with moderate temperatures, ractopamine in pig diets in the finishing phase may increase rates of weight gain and improve feed efficiency without affecting feed intake. Ractopamine increases needs of pigs in terms of lysine, p...

Fermented liquid feed for pigs: a review

Probiotics as Feed Additives in Weaned Pigs: A Review

Accepted: 22/06/2015 Abstract Weaning is a complex phenomena which causes a great change in the magnitude and diversity of exposure to environmental antigens derived from food and potentially pathogenic microorganisms. Early weaning is a valuable way to get enhanced breeding efficiency and economical profits in modern intensive swine production. But this practice is accompanied by many challeng...