Mastitis in beef cows and the effects of supplemental β-carotene on milk parameters

Whiteman, D. H., Tomkins, N. W., Young, R. J., Immig, I., Weber, G. and Elliott, R. (2010) Mastitis in beef cows and the effects of supplemental β-carotene on milk parameters. Animal Production Science, 50 6: 503-507. doi:10.1071/AN09171

Author Whiteman, D. H.
Tomkins, N. W.
Young, R. J.
Immig, I.
Weber, G.
Elliott, R.
Title Mastitis in beef cows and the effects of supplemental β-carotene on milk parameters
Journal name Animal Production Science   Check publisher's open access policy
ISSN 1836-0939
Publication date 2010-01-01
Year available 2010
Sub-type Article (original research)
DOI 10.1071/AN09171
Volume 50
Issue 6
Start page 503
End page 507
Total pages 5
Place of publication Collingwood, VIC Australia
Publisher C S I R O Publishing
Language eng
Subject 1103 Clinical Sciences
1106 Human Movement and Sports Science
Abstract Belmont red and Brahman cows (n = 50) were allocated to one of two groups to determine if β-carotene supplementation could reduce the incidence of mastitis and consequently improve calf productivity from birth to weaning. Both groups received a molasses-based supplement ad libitum; the treatment group supplement was fortified with ROVIMIX® β-carotene and ROVIMIX® E50 whereas the control group were provided access to the molasses supplement only. Blood samples were collected from cows pre and post calving and from calves when 84 ± 0.4 days old to measure plasma β-carotene concentration (PCC). Milk samples were collected 7 and 84 days post calving and at weaning and analysed for somatic cell count (SCC) and composition. Supplementation had no significant (P > 0.05) effect on SCC, calf PCC, calf LW gain and LW at weaning. Supplemented cows had significantly (P < 0.05) higher PCC compared with unsupplemented cows (4.9 ± 0.36 v. 3.9 ± 0.24 mg/L, respectively) at weaning. Cows commenced the study in an above-average condition, and combined with unseasonal green forage it is concluded that β-carotene supplementation has no effect on mastitis or calf weaning weight.
Keyword Calf growth
Grazing cattle
Somatic cell count
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Veterinary Science Publications
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