Comportamento de cordeiros em pastejo de azevém (Lolium multiflorum) em diferentes fases fenológicas submetidos à adubação nitrogenada

Pellegrini, Luiz Giovani de; Monteiro, Alda Lúcia Gomes; Neumann, Mikael; Carvalho, Paulo César de Faccio; Silva, Ana Luisa Palhano; Lustosa, Sebastião Brasil Campos; Pellegrin, Ana Carolina Ribeiro Sanquetta de

doi:10.1590/s0034-737x2011000300013

Cited by 1 publication

(2 citation statements)

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“…This result is probably due to the lower supply of leaf blades observed in this cultivar (Table 2), according to that the animals spent more time searching for leaves to meet their daily requirement of forage intake. According to Pellegrini et al (2011), sheep respond to a decrease in the percentage of available green leaves, increasing grazing time, to try to compensate for the reduction in diet quality, since the accessibility of leaves and the degree of maturity of the plant are closely related to the nutritive value of forage plants.…”

Section: Discussionmentioning

confidence: 99%

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Cultivated Pastures Affect Nutrient Intake and Feeding Behavior of Sheep

Neto

Difante

Medeiros

et al. 2020

Trop. Anim. Sci. J.

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Cultivated pastures may increase the meat production of sheep, but it is necessary to understand the plant-animal relationships in a pastoral environment. This study aimed to assess the effect of forage cultivars on the intake and feeding behavior of sheep. Four treatments were evaluated, consisted of the cultivars Panicum maximum cvs. Aruana and Massai and Brachiaria brizantha cvs. Marandu and Piatã. Twenty-four sheep, male of the Santa Inês genotype, were used with six replications per treatment. Daily forage and nutrient intakes were evaluated in addition to time in grazing, rumination, and leisure activities. The animals in the pasture of Aruana grass demanded the most extended times of grazing and rumination (p<0.05). The leisure time was higher (p<0.05) in the animals kept in pastures of Piatã grass. The highest intakes of dry matter and crude protein in g/day (p<0.05) were found in the animals kept in the pasture of Marandu grass, and a smaller intake was found in the animals kept in the pasture of Massai grass. Intake of leaf blades was higher (p<0.05) in the animals kept in pastures of Massai and Marandu. The neutral detergent fiber intake did not differ among the cultivars. It is concluded that pasture structure and chemical composition of tropical forage cultivars influence the nutrient intake and feeding behavior of sheep. The low leaf blade offer of the pasture of the Aruana grass negatively affects the feeding behavior of the sheep, but the crude protein in forage of this cultivar favors the nutrient intake, feed conversion, and performance of sheep.

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Section: Discussionmentioning

confidence: 99%

“…Similar behavior was observed by Emerenciano for sheep in the pasture of Massai grass under different canopy heights. According to Pellegrini et al (2011), the greater participation of the structural components in the pasture affected the increase in grazing time and the reduction in the leisure time of the animals.…”

Section: Discussionmentioning

confidence: 99%