Evaluation of the zootechnical additive SUBTILPROBIO® E-44 in productive and health indicators in heavy pure
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Abstract
live weight, conversion, uniformity, viability and mortality were evaluated. The results showed that the birds from the fourth week to the sixth expressed a probiotic response in the productive indicator live weight (4:1472g/1406), (5:1897g/1826g) and (6:2387g/2336g) for P <0.01. At the end of the experiment, the productive indicators live weight (2387g/ 326g) and conversion showed significant values (1.8/1.9) for P <0.01, as well as uniformity (88/84 %) for P <0.001, with respect to the control group and to the standard for the breed under study. The mortality (3.8/8) and viability (96.2/92 %) indicators showed differences with respect to the control for P <0.01. The results of the research show the feasibility of using this zootechnical additive as an improver of the productive and health indicators for this poultry category.
Key words: probiotics, endospores of Bacillus subtilis, heavy birds
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