Effects of mineral supplementation on qualitative beef parameters

Correct nutrition with sufficient amount of optimal doses microelements efficiently supports high levels beef production and health the animals throughout feeding period. In sphere production, are needed as additional supplements to play an important role in productivity cattle quality products made from them. Providing a more bioavailable source deficient could increase metabolic process main nutrients, which would affect intensity bull growth slaughter meat parameters. It has been revealed that organic complexes have greater bioavailability. Throughout experiment, Ukrainian Black Spotted bulls 175–200 kg live weight were fed diets enriched by chelate compounds lysine methionine. Animals second group diet methionates following doses, mg/kg weight: iron – 0.05, cobalt 0.04, iodine 0.05 selenium 0.02; third received lysinates same microelements; fourth was given complex half-doses microelements. The studies carried out using methods: zootechnical (productivity), biochemical (chemical blood composition), morphological (weight sizes certain tissues internal organs), physical-chemical sanitary parameters statistical (mean arithmetic value its error, significance level difference between parameters). We found evidence confirmed benefits microelement supplemention essential aminoacids bulls’ diet. Feeding supplement during period improved hematological parameters, beef. determined best outcomes resulted (Fe, Co, Se I) had 26.0% higher mean daily increments 11.1% rates, they grew 25.8% intensively than others consumed only this 5.2% yield 4.8% carcass yield. experimental groups observed lower number microorganisms longissimus layer one field view when analyzing impression smears. After 14 days storage, qualitative reactions control positive formaldehyde, sulphuric-acid copper, Nessler’s reagent negative benzidine. samples doubtful. Less deterioration stored at low temperatures (0…+2 ºС) for groups.