Índice de seletividade por ovinos em Caatinga raleada e enriquecida com uso da micro-histologia fecal.
2017
Resumo: Objetivou-se analisar, a partir da tecnica de micro histologia fecal, o indice de seletividade das especies vegetais selecionadas por ovinos em pasto de caatinga raleada e enriquecida. Dezesseis ovelhas da raca Somalis brasileira foram acompanhadas durante o periodo das aguas (abril), transicao (junho) e seca (agosto). Das 33 plantas identificadas na dieta dos animais, seis foram as mais selecionadas. Centrosema sp. e W. rostrata apresentaram alta selecao nos periodos avaliados. [Selectivity index by sheeped and caused caatinge sheep with microfinal histology]. Abstract: The objective of this study was to analyze the selectivity index of the plant species selected by sheep in thinned and enriched caatinga pasture using the fecal micro histology technique. Sixteen Brazilian Somalis sheep were followed during the water period (April), transition (June) and dry (August). Of the 33 plants identified in the diet of the animals, six were the most selected. Centrosema sp. and W. rostrata presented high selection in the evaluated periods
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