The objective of the present study was to evaluate reduction calcium (Ca), crude protein (CP), metabolizable energy (ME), and available phosphorus (aP) in nutritional matrix Brazilian commercial broiler diets supplemented with both phytase superdosing (1500 FTU/kg) or conventional doses (500 on feed cost profitability, performance, bone mineralization, carcass yield from 1 42 d. A total 1200 on...

U radu se prikazuju rezultati istraživanja utjecaja genotipova Ross 308 i Cobb500 brojlera muškog spola na klaonička svojstva tehnološke pokazatelje prsnogmišićnog tkiva. Na svježim zamrznutim uzorcima istraživani su sadržaji masnihkiselina kao TBAR S vrijednosti u mišićnom tkivu. Meso prsa zabataka čuvano jeu zamrzivaču 30 dana -20 °C. Tov organiziran je konvencionalni način(jednaki uvjeti za ...

One of the methods combating unwanted microflora is use antibiotics, however, along with positive properties, they have a number significant disadvantages, in particular, detrimental effect both pathogenic and beneficial intestinal microflora. In this regard, there an urgent need to replace antibiotics safer substances, which increasingly include probiotics. The mechanism action probiotics sele...

The Cobb × Cobb 500 slow-feathering male is a fast early-growth broiler grown under variable feeding programs and amino acid (AA) densities. An experiment was conducted using diets with increased ideal protein densities in a feeding program of 1 to 7 d, 8 to 21 d, 22 to 35d, and 36 to 42 d. Diets had ratios between essential digestible (D) AA and DLys (DAA:DLys) as follows: TSAA, 75%; DThr, 65%...

in this study the effect of diet dilution in 16-20 d of age and using a multi-enzyme (endofeed-w) on performance, carcass characteristics and some blood parameters of broiler chickens (cobb 500, commercial strain) was studied. this experiment was conducted as a factorial arrangement 2×3 in a completely randomized design with 3 replicates and 8 chicks in each replicate. experimental diets contai...