Veterinary Science & Technology

Nad P

Publications

• Research Article
  Micro Mineral Concentrations of Dairy Cows in Selected Areas from Slovak Republic
  Author(s): Skalicka M, Nad P, Hresko Samudovska A and Bujnak LSkalicka M, Nad P, Hresko Samudovska A and Bujnak L
  
  The aim of study was evaluation of the quality of feeds for dairy cattle on the content of copper and zinc from two agro-ecological zones (western Slovakia and eastern Slovakia). Feed samples-corn silage (n=70), lucerne silage (n=32), grass silage (n=25), and total mixed ration for dairy cows-TMR (n=66) came from livestock farms. The Cu and Zn contents were assessed in samples using atomic absorption spectrophotometer (AAS). Higher average values of zinc were found in lucerne silage from eastern Slovakia (75.04 mg/kg), in other silage were the concentration of zinc in range from 51.77 to 58.13 mg/kg. The lowest average values were found of copper in silages-corn, lucerne and grass (9.80; 9.67 and 8.10 mg/kg), respectively. In the TMR was detected the higher average content of Zn in production phases, before calving 100.43 mg/kg, after calving 109.35 mg/kg and on the top of lactation 1.. Read More»
  DOI: 10.4172/2157-7579.1000289

  Abstract PDF