reproductive performance. However, as is often the case, many of these studies reported conflicting results.


During 2018, in an attempt to obtain some clarity, researchers at Ohio State University, Columbus reviewed data from multiple published scientific studies on the relationship between mastitis and reproductive performance. In total they examined 66 peer reviewed publications. They were particularly interested in how a mastitis case affected the time to first service, the days open, the services per conception and pregnancy loss.


Having reviewed the relevant papers, they concluded that cows that had a case of mastitis in early lactation took an average of 13.3 days longer to first service when compared to animals with no mastitis during the same period. This led to an average increase of 22 days open for cows that had suffered a bout of mastitis. When services per conception were examined, this increased by 0.46 inseminations for a cow that experienced a mastitis infection pre-insemination. The confounding effect of pregnancy loss was also considered and it was estimated that cows that suffer clinical mastitis during the breeding period are 1.81 times more likely to suffer pregnancy loss. There is a clear relationship between mastitis incidence and reduced reproductive performance i.e. cows that suffer from mastitis are likely to have more services per conception than their herd companions. Any reduction in mastitis incidence may also bring about an improvement in reproductive performance.


High Temperature


• • • • • •


www.hydronix.com enquiries@hydronix.com


DRIVING EFFICIENCY FOR GLOBAL IMPACT


XTRACT® DAIRY & XTRACT® RUMINANT consist of standardized encapsulated  


Find us at IPPE 2020, booth A-615 hall A in January 28-30, 2020


www.pancosma.com Follow us on


FEED COMPOUNDER JANUARY/FEBRUARY 2020 PAGE 15


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60