Impact of biomass bank technology with Cuba CT-115 grass on a dairy farm from the topical area of the center of Veracruz, Mexico
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Abstract
purpureus cv. Cuba CT-115 in dual-purpose livestock, data was
collected from 14 indicators during six years. For three years,
the area had normal management and biomass banks for the
other three. Trimester-year combination allowed to create a data
matrix with a total of 24 rows. The Statistical Model for Impact
Measurement was used to interpret the results. Three principal
components (PC) were selected, which explained 83.87% of
the variability. PC1 explained 56%, PC2 16.47% and PC 3
11.3%. The three new variables were renamed as production,
supplements and productivity, respectively, according to the
variables that had a preponderance superior to 0.65 in each
component. With these variables, impact indexes of each scenario
were estimated. Production component changed its impact values,
from negative to positive, in the three years with biomass banks,
which showed the advantage of technology introduction. Through
linear correlations, it was estimated that, in each trimester, the
total number of cows increased by 1.84 ± 0.14; milk production
at 298.37 ± 45.87 kg, weaned live weight at 44.81 ± 9.59 kg and
stocking rate at 0.057 ± 0.07 LAU/ha. Biomass bank technology
allowed to important indicators for dual-purpose livestock.
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