Calving Peak at the Beginning of the Rainy Season and Its Effects upon Bioeconomic Efficiency on Commercial Dairy Farms. III. Economic Indicators
Abstract
Two calving peaks in dairy cows at the beginning of grass maximal growth on dry farming systems with low productive capital were compared through their economic indicators. Physical and productive conditions on the sampled dairy farms were highly similar. An analysis of variance (ANOVA) was performed to evaluate expenses, incomes and, costs of milk production per kilogram. Taking into account that 60 % of annual calvings were registered from April through August, two six-week time spans were set from April on: Period I and Period II. Significant differences (P < 0,05) between both periods with regards to incomes and costs were registered. Period I showed higher incomes lower costs ($ 0,85 /kg milk); on the contrary, Period II reached $ 0,96 /kg milk. Findings support calving peak advantages in decreasing expensive feedstuff consumption due to higher utilization of grazing grounds.
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References
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