Production and health of pasture-fed dairy cattle following oral treatment with the ionophore lasalocid

Journal of Dairy Science
S McDougallF M Anniss

Abstract

The aim of the study was to evaluate the effect of feeding the ionophore lasalocid on the productivity and health of seasonally calving, pasture-fed dairy cows. Dairy cows (n = 1020) from 4 herds were enrolled in a split-herd, prospective intervention study. Cows were blocked by breed and age, ranked on previous production, and then assigned to 2 treatment groups. Treatment cows were each exposed to 300 to 350 mg of lasalocid/d commencing 3 wk before and ending 18 wk after the start of the seasonal calving period. Milk production was determined on 3 occasions for each cow at approximately monthly intervals (herd tests 1 to 3), body condition score was determined fortnightly, and all disease occurrences were recorded. Lasalocid treatment increased milk volume milk protein and milk fat production by approximately 2%, without altering milk composition. Fewer lasalocid-treated cows than control cows (7.3 vs. 11.6%, respectively) were diagnosed with clinical mastitis. Lasalocid treatment of pasture-fed dairy cows resulted in reduced mastitis incidence and increased milk production without changes in body condition or negative effects on metabolic processes as monitored by metabolite concentrations.

References

Jun 1, 1979·Journal of Animal Science·M I PoosT J Klopfenstein
Jan 1, 1991·Australian Veterinary Journal·L B LoweS C Valentine
Jan 1, 1990·Journal of Dairy Science·W P Weiss, B A Amiet
Feb 1, 1989·Journal of Dairy Science·F D SauerW J Cantwell
Jun 1, 1984·Journal of Animal Science·W G Bergen, D B Bates
May 1, 1995·The British Journal of Nutrition·G E LobleyD A Farningham
Oct 1, 1996·Australian Veterinary Journal·K A StephensonT J O'Meara
May 1, 1997·Journal of Dairy Science·K A StephensonL B Lowe
Apr 9, 1998·Journal of Dairy Science·J H Van der WerfJ K Oldenbroek
Jul 31, 1998·Journal of Dairy Science·S BeckettL Wade
Sep 10, 1999·Journal of Dairy Science·L J ErasmusD O'Hagan
Aug 25, 2000·Veterinary Research·W SuriyasathapornY H Schukken
Jan 7, 2003·Journal of Dairy Science·C T WestwoodJ K Garvin
Jul 3, 2003·Journal of Dairy Science·F M RhodesK L Macmillan
Oct 1, 1994·New Zealand Veterinary Journal·E S Kolver, K L Macmillan
Jul 21, 2005·New Zealand Veterinary Journal·M A StevensonD J Russell
Jan 1, 2013·Asian-Australasian Journal of Animal Sciences·Rasool SadjadianNima Farzaneh

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Citations

Dec 2, 2008·New Zealand Veterinary Journal·Ij LeanMc Playford
Jul 5, 2018·Journal of Veterinary Pharmacology and Therapeutics·Elizabeth E HickeyDarren J Trott
Nov 1, 2007·Animal : an International Journal of Animal Bioscience·J-P Jouany, D P Morgavi
Aug 9, 2012·Journal of Animal Science·S L Lodge-IveyJ Browne-Silva

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