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Suppl. 1/2004 vol. 13
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SHORT COMMUNICATION
Effect of concentrate supplementation on plasma minerals and performance of smallholder dairy cattle
A. A. Gimbi 1
,
 
A. E. Kimambo 1
,
 
N. L. Kanuya 2
,
 
L. A. Mtenga 1
,
 
G. H. Laswai 1
,
 
J. Madsen 3
 
 
 
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1
Department of Animal Science and Production, Sokoine University of Agriculture, P.O. Box 3004, Morogoro, Tanzania
 
2
Department of Veterinary Surgery and Theriogenology, Sokoine University of Agriculture, P.O. Box 3020, Morogoro, Tanzania
 
3
Department of Animal Science and Health, The Royal Veterinary and Agricultural University, Grønnegaardsvej 2, DK-1870, Frederiksberg C, Denmark
 
 
Publication date: 2004-08-30
 
 
Corresponding author
J. Madsen   

Department of Animal Science and Health, The Royal Veterinary and Agricultural University, Grønnegaardsvej 2, DK-1870, Frederiksberg C, Denmark
 
 
J. Anim. Feed Sci. 2004;13(Suppl. 1):487-490
DOI: https://doi.org/10.22358/jafs/73972/2004
 
 
Article (PDF)
 
KEYWORDS
concentrate supplement
plasma minerals
productive performance
 
ABSTRACT
An assessment of calf birth weight (CBWT), milk yield (MY) and plasma calcium (Ca), phosphorus (P) and copper (Cu) was done in supplemented (S) and control (C) cattle groups grazing tropical pastures . The supplemented group had compared to the control group higher P (5.1 vs 4.7±0.1 mg/dl; P<0.05), Cu (0.5 vs 0.4±0.02 µg/ml; P<0.001), MY (10.13 vs 7.63± 0.07 l/day; P<0.001) and CBWT (26.01 vs 23.4±0.68 kg; P<0.05). The control group showed P and Cu deficiency and the production effect of supplementation with an appropriate mixture were was more than 0.5 kg milk per kg mixture and 10% heavier calves at birth.
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