Dependency of the diseases occurred after delivery from the age and number of lactation among cows in Guba-Khachmaz region of Azerbaijan Republic

Abstract

High productivity breed cows are delivered to the Republic recently for intensive development of livestock. Subsidies are allocated to farmers, modern type livestock complexes are constructed by state. But, although all conducted works, there are several diseases which prevent the development of livestock. The leading one of such diseases are diseases occurred after delivery among breed cows. Along with various factors, special attention involves the age of animals and number of lactation in occurrence of such diseases. Metritis was observed in 361cows from 4826 cows between 3-8 ages and older, as well as passing lactation for 6 and more times (7.5%), mastitis in 278 of 4826 cows (5.8%), latency delay in 106 of 4826 cows (2.2%), and birth paresis in 42 of 4826 cows (0.9%) in Guba – Khachmaz natural – economic geographic region. In the Guba-Khachmaz region, among the three-year-old cows during the first lactation, infections with metritis amounted to 4.7%, mastitis – 3.1%, detention of the sequence – 0.7%, birth paresis - 0.3%; Among four-year-old cows during the second lactation, infections by metritis amounted to 5.1%, mastitis – 3.5%, detaining the sequence – 1.6%, generic paresis - 0.4%; among five-year-old cows during the third period of lactation: 6.3% metritis, 5.8% mastitis, 2.3% post-mortem, generic paresis – 0.5%; among six-year-old cows during the fourth lactation: 8.2% metritis, 6.2% mastitis, 2.6% post-sedentation, 0.7% birth paresis; Among the seven-year-old cows during the fifth lactation: metritis 9.0%, mastitis 7.2%, post-traumatic delay 2.7%, birth paresis 1.5%; among cows at the age of 8 years and older who have undergone 6 or more lactations: metritis 10.7%, mastitis 8.9%, postural detention 3.4%, generic paresis 1.7%. The results of the study show that with increasing age of cows and the number of lactations, their sensitivity to postpartum diseases increases.