Digestible energy in four grazing grasses at different regrowth ages under complementary fertilization with zinc metallosite

Abstract:

The present investigation was carried out in the Laica University" Eloy Alfaro" of Manabí, El Carmen, Province of Manabí-Ecuador, in the premises of La Granja Experimental Río Suma, in Km 30 of the road Santo Domingo El Carmen. The goal was the in vivo digestibility of four grazing grasses (Panicum maximum cv. Tanzania, Panicum maximum cv. Mombaza, Brachiaria Brizantha cv. Xaraes, Brachiaria Brizantha cv. Marandú) under foliar fertilization with zinc metallosite. A 4 x 4 Square Latin design was used. A total of 4 rows (regrowth ages), 4 columns (sheep) and 4 treatments (grazing grass varieties) were used. The factors under study were cut or regrowth age (20, 25, 30 and 35 days) and grazing grass varieties under foliar fertilization with 2 lts ha-1 of zinc metallosite (Tanzania, Mombaza, Xaráes and Marandú) and the variable under study were: Digestible energy. The digestible energy in grazing pastures under complementary fertilization with 2 liters ha-1 of zinc metallosite showed positive effects, highlighting the varieties Marandú, Tanzania and Xaraes.

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