IMPACT OF MIXED LYGAND COBALT COMPLEX ON DIGESTIBILITY OF NUTRIENTS OF HIGHLY PRODUCTIVE COWS OF HOLSTEIN BREED


  • O. V. Smetanina NUBaN, Bila Tserkva National University
  • I. I. Ibatulin NUBaN, Bila Tserkva National University
  • V. S. Bomko NUBaN, Bila Tserkva National University
Keywords: highly productive cows, minerals, sulfate salts of copper, zinc, sodium selenite, mixed lygand complex of cobalt, digestibility, digestibility coefficients

Abstract

The article highlights evidence of the effectiveness eliminate of Cobalt  deficit by using different levels of mixed lygand cobalt complex, and their effects on digestibility to obtain clean milk from highly productive Holstein cows of German selection. Tested cows were fed with small component forage mixture composed with concentrated feed–sulfate salts of copper, zinc, sodium selenite and mixed lygand cobalt complex. Sulfate salts of copper, zinc was introduced to cover the deficit of trace elements in a given feed mixture to normal, and selenium concentration was adjusted to 0,3 mg / kg diet dry matter and depending on the circuit experiment different doses of mixed lygand cobalt complex. Control was dose of mixed lygand cobalt complex, which covered the deficit by 75 % to normal. The experiments were conducted on Holstein cows and research groups have used doses of mixed lygand cobalt complex, which covered the deficit in cobalt on 85, 70, 55 and 40 %.

Based on data obtained during the scientific and economic experiment, it was found that the elimination of the deficit cobalt in the forage mixture of 70 % by mixed lygand complex of cobalt in the diets of dairy cows of Holstein breed in the dry period and the first 100 days of lactation, provided the cow from the 3rd research group of this element and contributed to the highest digestibility of nutrients in the forage mixture compared with the control group, the 2nd,  the 4th and the 5th research groups. Digestibility coefficient for dry matter was higher by 2,5 % compared to the control, 2.7% against the 2nd experimental group, 1,2 % against the 4th and 3,2 % against the 5th respectively 1,4% organic, 1,0 %, 0,6 % and 1,5 %, protein – 1,4 %, 2,0 %, 0,8 % and 2,4 %, fat – 4,8 % 5,7 % , 0,7 % and 6,1 % fat – 3,0%, 3,5 %, 1,9 % and 3,9 %, MAR – 5,8 %, 4,4 %, 0,9 % and 1,4 %.

Based on data obtained during the scientific and economic experiment proved that the best realized genetic potential  of highly productive cows of Holstein breed German selection in the forest–steppe zone of Ukraine to the elimination of zinc deficiency by 70 % through the use of  mixed lygand complex of  this element.

 

Author Biographies

O. V. Smetanina, NUBaN, Bila Tserkva National University
graduate student
I. I. Ibatulin, NUBaN, Bila Tserkva National University
academician UAAS, a Doctor of Agricultural Sciences
V. S. Bomko, NUBaN, Bila Tserkva National University
Doctor of Agricultural Sciences

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Published
2016-03-06
How to Cite
Smetanina, O. V., Ibatulin, I. I., & Bomko, V. S. (2016). IMPACT OF MIXED LYGAND COBALT COMPLEX ON DIGESTIBILITY OF NUTRIENTS OF HIGHLY PRODUCTIVE COWS OF HOLSTEIN BREED. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences, 18(1), 132-136. Retrieved from https://nvlvet.com.ua/index.php/agriculture/article/view/3515