STUDIES ON MINERAL PROFILE MAPPING AND COMPARATIVE EVALUATION OF MINERAL SUPPLEMENTATION IN LACTATING DAIRY COWS IN BIDAR DISTRICT
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Date
2022
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR-585 226
Abstract
The present study was conducted in three phases. In the first phase, collection
of samples (soil, fodder and serum) was done in five taluks (Aurad, Basavakalyan,
Bhalki, Bidar and Humnabad) of the Bidar district of Karnataka. In the second phase,
estimation and analysis of samples were done. The mean ± SE values of Ca, Mg, P, Cu,
Fe and Zn content of soil were found to be 11.96 ± 0.40, 6.01 ± 0.21 (cmol/kg), 14.91
± 0.50 (kg/ha), 1.75 ± 0.16, 4.87 ± 0.35 and 1.43 ± 0.12 (ppm), respectively. The overall
prevalence (%) of soil Ca, Mg, P, Cu, Fe and Zn were 0, 0, 33, 18, 20 and 26,
respectively. Similarly, the average Ca, Mg, P, Cu, Fe and Zn contents of fodder were
0.36 ± 0.01, 0.25 ± 0.01, 0.25 ± 0.01 (%), 8.37 ± 0.28, 265.69 ± 18.73 and 45.46 ± 2.07
(ppm), with deficiency (%) of 05, 03, 37, 22, 17 and 25, respectively. The overall
prevalence (%) of serum Ca, Mg, P, Cu, Fe and Zn deficiency in the lactating dairy
cattle were 24, 04, 34, 21, 20 and 24, respectively. In the third phase, a comparative
evaluation of mineral supplementation in mineral deficient lactating cows was
conducted. Both supplements were found to be equally effective in alleviating
macromineral deficiencies and concerning improvement in milk yield, haemogram,
serum micro minerals, vital indices and serum biochemistry, commercial feed
supplement was marginally superior. The chelated area-specific mineral mixture was
found to be a cost-effective source for routine supplementation for health and
production except for the therapy of anaemic animals, which needs an additional iron
supplement.