Investigation regarding production and reproduction performances at cows of Black Spotted Breed of Moldavian type within Maximovca elevator of Republic of Moldova

Abstract

The reproductive performance depending on milk productivity level at cows of Black Sportted breed of Moldavian type within the elevator of the experimental farm of the National Institute of Animal Husbandry and Veterinary Medicine was studded. Cows’ population exploited in the conditions of the elevator of the scientific - Experimental Farm of the Institute of Animal Husbandry and Veterinary Medicine is characterized by high indices of milk productivity. Thus, the average cows milking during 3005 days of first lactation was 6784,2 kg of milk which fatness was 3,99%, and by the lactation on average per one cow 270,7 kg of milking fat was received. By comparing the received data with the purpose – standard we can see that this group of animals exceed the refuirements of the purpose / standard by the quantity of abstained milk with 69,6%. By the content of fat in milk the average indices of investigated animals are higher than the purpose - standard by 87,96. The reproductive performance of high reproductive cows is problematic and depedens both on productivity level and on the period of first insemination and represent on average 0,86 per farm.