Supplementation strategies for lactating calves
DOI:
https://doi.org/10.47808/revistabioagro.v1i1.216Keywords:
Supplementation, whey, CalvesAbstract
In order to evaluate the use of whey supplementation of lactating calves and its effect on weight gain, consumption and cost of breeding, a trial was conducted with a completely randomized design. 25 calves were used in the crosses Swiss / American - Cebu / Holstein between 8 and 12 weeks old, they were assigned under a completely randomized design in five experimental treatments of five animals each, T1: 4.5 L. whey + 1.5 L. substitute / day + 250 gr. Concentrate, T2: 5.0 L. whey + 1 L. substitute day + 250 gr. Concentrate; T3: 5.5 L. Whey + 0.5 L. substitute / day + 250 gr. Concentrate; T4 6 L. whey / day + 250 gr. Concentrate; T5 6 L. substitute / day. Offered concentrate had a 20% crude protein. Trial duration was 90 days, observed the following results for T1, T2, T3, T4, T5 respectively: Significant differences (P <0.05) for both daily weight gain 610, 417, 436, 565 and 386 g / animal, as in the incidence of diarrhea 4%, 12%, 4%, 4%, 20%, the economic analysis showed that it is feasible to use the T4 considering that the price whey is $ 0.30/kg, thus the gross income and therefore vera increased the cost / benefit.
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Copyright (c) 2013 Amalia Cabrera Núñez, Miguel Ángel Lammoglia Villagomez, Iliana Del Carmen Daniel Rentería, Diana Laura Díaz Inocencio y Pablo ElorzaMartínez
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