Physiological parameters and productive performance of rabbit does and their offsprings with dietary supplementation of soy lecithin
The objective of this work was to evaluate the effect of a dietary supplementation with soy lecithin (SL) on the productive performance and blood constituents of rabbit females and their offsprings. A total of 40 rabbits does were distributed into four treatments: control group, no dietary SL inclus...
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Veröffentlicht in: | Pesquisa agropecuaria brasileira 2018-09, Vol.53 (9), p.1078-1085 |
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Zusammenfassung: | The objective of this work was to evaluate the effect of a dietary supplementation with soy lecithin (SL) on the productive performance and blood constituents of rabbit females and their offsprings. A total of 40 rabbits does were distributed into four treatments: control group, no dietary SL inclusion; and three groups with 0.5, 1.0, and 1.5% SL inclusion in the diets. The inclusion of 1.5% SL increased the count of blood cells and hemoglobin concentrations; 0.5-1.0% SL reduced the total cholesterol levels in the blood, as well as the low-density lipoprotein-cholesterol and the activities of the enzymes alkaline phosphatase, aspartate aminotransferase, and alanine aminotransferase, but increased the levels of total lipids, triglycerides, high-density lipoprotein-cholesterol, and the activities of the antioxidant enzymes. Supplementation with 1.0-1.5% SL resulted in higher milk production and heavier litters. Soy lecithin supplementation at 1% improves the physiological parameters and increases the milk production of rabbit does, also improving the performances of their offsprings.
Resumo: O objetivo deste trabalho foi avaliar o efeito da suplementação dietética com lecitina de soja (LS) sobre o desempenho produtivo e os constituintes sanguíneos de coelhas e suas ninhadas. Um total de 40 coelhas foi distribuído em quatro tratamentos: grupo-controle, sem inclusão de LS; e três grupos com 0,5, 1,0 e 1,5% de inclusão de LS nas dietas. A inclusão de 1,5% de LS aumentou a contagem de células sanguíneas e a concentração de hemoglobina; 0,5-1,0% de LS reduziu os níveis sanguíneos de colesterol total, assim como os de lipoproteína de baixa densidade e as atividades das enzimas fosfatase alcalina, aspartato aminotransferase e alanina aminotransferase, mas aumentou os níveis de lipídios totais, triglicérides, lipoproteína de alta densidade e as atividades das enzimas antioxidantes. A suplementação com LS a 1,0-1,5% resultou em maior produção de leite e ninhadas mais pesadas. A suplementação com lecitina de soja a 1% melhora os parâmetros fisiológicos e aumenta a produção de leite em coelhas, tendo melhorado também o desempenho das ninhadas. |
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ISSN: | 0100-204X 1678-3921 1678-3921 |
DOI: | 10.1590/s0100-204x2018000900012 |