Colostrum & Waste Milk Pasteurisation
15/11/2011 Defra grant available for pasteurisers for Johnes control
VET REC OCT2011,p462-
MYCOPLASMA BOVIS- 11 cows out of 200 had chronic mastitis, plus calves with pneumonia and head tilt, findings that have previously been described in herds that fed M.bovis infected waste milk back to calves.
See Research Articles prooving pasteurisations effectiveness against M bovis.
18/10/11- Pasteuriser User, Lyn Smith at Kingspool Holstiens is runner up in the National Heifer Rearing Competition, sponsored by Volac. Read the article.
The goal of pasteurisation is to kill all these target pathogens:
- Mycobacterium avium subsp.paratuberculosis – Johnes Disease
- Tuberculosis
- Mycoplasma spp. – Causes mastitis and pneumonia
- Salmonella spp.
- Listeria monocytogenes
- Escherichia coli
- Campylobacter spp.
- Staphylococcus aureus and other mastitis streptococci
- Penn State presentation on pasteurisation
- University of Wisconsin recommends using pasteurised milk for Johnes control
- Click here for an impartial article on pasteurising milk and colostrum
Research Results:
Pasteurisation reduces transmission of diseases - Penn State.
Effects of Feeding Heat-Treated Colostrum on Passive Transfer of Immune and Nutritional Parameters in Neonatal Dairy Calves
L. Johnson, S. M. Godden,1 T. Molitor, T. Ames, and D. Hagman Department of Veterinary Population Medicine, University of Minnesota, St Paul 55108
“The most exciting result from this study was that feeding heat-treated colostrum resulted in greater serum IgG concentrations in calves, despite the fact that calves in both treatment groups were fed the same total mass of IgG at the same time after birth and using the same feeding method. The authors hypothesize that greater serum IgG concentrations could have resulted because calves receiving heat-treated colostrum were able to absorb a greater proportion of the total mass of IgG presented to the small intestine.”
Heat-Treatment of Bovine Colostrum. II: Effects of Heating Duration on Pathogen Viability and Immunoglobulin G
Godden,*1 S. McMartin,* J. Feirtag,† J. Stabel,‡ R. Bey,§ S. Goyal, § L. Metzger,† J. Fetrow,* S. Wells,* and H. Chester-Jones¦
*Department of Veterinary Population Medicine, and †Department of Food Science and Nutrition, University of Minnesota ‡USDA, ARS, National Animal Disease Center, Ames, IA 50010 §Department of Veterinary and Biomedical Sciences, and ¦Department of Animal Science, University of Minnesota, St. Paul 55108 Dairy Sci. 89:3476–3483 ©American Dairy Science Association, 2006.
“Large (30-L) batches of moderate- to high-quality bovine colostrum can be heat-treated in a commercial on farm batch pasteurizer at 60°C for at least 120 min without affecting the IgG concentration or sctivity. Mycoplasma bovis, L. monocytogenes, E. coli O157:H7, and S. enteritidis added tocolostrum could not be recovered after colostrum was heat-treated at 60°C for 30 min. Heat-treatment at 60°C for 60 min should be sufficient to eliminate Mycobacterium avium subsp. paratuberculosis (Map) from colostrum in most situations.”
Following scientifically tested procedures, the benefits of pasteurisation are clearly visible in the calf and in your profit margin. Plus there is no harm done to the feed value of the milk or colostrum. In fact, calves fed pasteurised colostrum have a higher serum IgG concentration.
(Journal of Dairy Science 2007; 90:5189-5198).
