Changes on the intake behavior of ovines when modifying the initialhigh of grazing of Leucaena lanceolata
2009
The objective of this work was to determine the changes on the intake
behavior of ovines when modifying the initial high of grazing of
Leucaena lanceolata . The statistical analysis was an analysis of
variance using x2 with test of Kruskal–Wallis, for which 10
females of the Pelibuey breed were used and the initial heigh of the
treatments were T1 60, T2 100, T3 140, and T4 180 cm. Before and after
grazing, biomass both total and in layers of height 0-60, 60 - 100, 100
-140, and 140 - 180 cm were taken. Grazing lasted 4 h per day (from
9:00 to 13:00 h). The activity of the animals was registered and how
they consumed the plant, by direct vision for each individual every 10
min. The results showed significant differences (P<0.05) for
utilization, time dedicated to the consumption of the legumes, and
position of the head to consume plant. An inverse relation was obtained
for utilization and initial height, with a decrease in the utilization
of 93.2% for T1 to 35.9% for T4, with a similar behavior among layers.
The position of the head varied, depending on the availability of the
foliage and height. The initial height of the pasture modified the
utilization, form, and consuming time for sheep on L. leucocephala with
the best values for initial height of 100 cm.
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