Effect of stocking rate in green panic (Panicum maximum Jacq. var. trichoglume cv. Petrie) pasture fertilized with nitrogen or associated with legumes

Authors

  • Antonio João Lourenço Instituto de Zootecnia, Divisão de Zootecnia de Bovinos de Corte, Seção de Criação e Manejo de Gado de Corte, Nova Odessa, SP
  • João Delistoianov Instituto de Zootecnia, Estação Experimental de Zootecnia de Colina, SP
  • Edison Valvasori Instituto de Zootecnia, Estação Experimental de Zootecnia de Colina, SP

Abstract

The objetive of this trial carried out at the Instituto de Zootecnia was to study the animal performance in green panic + centrosema, green panic + galáxia and grass pastures fertilized with 50 kg of nitrogen/ha/year under four stocking rates during the rainy season and four different stocking rates during the dry season. The stocking rates utilized under continuous grazing were: L1 - 2,0 and 1,3, L2 . 2,4 and 1,6, L3 . 3,0 and 2,0 and L4 - 3,6 and 2,4 animals/ha, respectively for the rainy and dry seasons. The experimental design was a randomized blocks one with two replications. The size of the experimental area was 28 ha, divided in to 24 paddocks. The results showed that: 1 . The daily weight gains in the green panic + centrosema paddocks (320 g/head/day), with green panic + galaxia (339 g/head/day) and green panic plus 50 kg N/ha/year paddocks (361 g/head/day) were not statistically different (P > 0,05). 2 . The increase in stocking rate decreased the daily weight gain and increased the gain per ha during the rainy season (2,0-514 and 295; 2,4.477 and 328; 3,0-430 and 370; 3,6 head/ha-367 g/head/day and 380 kg/ha. While during the dry season the weight gains per hectare did not show differences with the increase of the stocking rate. (1,3-409 and 211; 1,6-335 and 213; 2,0.254 and 202; 2,4 head/ha-192 g/head/day and 183 kg/ha).

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Published

2014-01-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Effect of stocking rate in green panic (Panicum maximum Jacq. var. trichoglume cv. Petrie) pasture fertilized with nitrogen or associated with legumes. (2014). Bulletin of Animal Husbandry, 45(2), 343-358. http://bia.iz.sp.gov.br/index.php/bia/article/view/686

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