30 Oct 2013, 9:18 AM
Bovine TB - the views of a farmer based on field-based observations over many years. Peter Aspin was a herdsman, then a dairy farmer. He is now a beef farmer and also has a contract rearing dairy heifers for a local farmer. He was conventional and is now organic. He also run the Shropshire Agroforestry Project. All on 40 acres. To understand bovine TB one must first understand how significantly livestock husbandry practices have changed in recent years. I was on a dairy farm a couple of years ago - a closed herd (one that reared all its own replacement youngstock) - which had had its first bTB breakdown. Two veterinarians had arrived to do the follow-up sixty day retest. Talking to them I asked what they thought was the source of the problem. Their immediate response was that the adjacent dairy farm had purchased imported cattle the previous year, this herd had subsequently developed bTB and passed the infection either directly or via a vector to the neighbouring herd. Whether the imported cattle were themselves carriers of bTB or whether they had no immunity, I do not know and I assumed the vets did not know but the issue of cattle importation is a major concern for both farmers and vets. Ever increasing numbers of dairy cattle are being imported simply because they are cheaper if large enough numbers are purchased. I know of a herd of over two thousand dairy cows where not a single replacement animal is home-reared, every single one arrives on a lorry from mainland Europe. read more...