Beef cattle performance in response to Ipyporã and Marandu brachiariagrass cultivars under rotational stocking management
Euclides, Valéria Pacheco Batista, Nantes, Nayana Nazareth, Montagner, Denise Baptaglin, Araújo, Alexandre Romeiro de, Barbosa, Rodrigo Amorim, Zimmer, Ademir Hugo, Valle, Cacilda Borges do
R. Bras. Zootec.
DATA DE PUBLICAÇÃO
ABSTRACT The objective of this two-year study was to evaluate live weight gain per animal and per area and their relationships with the characteristics of BRS Ipyporã (Brachiaria ruziziensis × Brachiaria brizantha) and Marandu (Brachiaria brizantha) pastures. A completely randomized block design was used with two treatments and four replicates. The grazing method was rotational stocking, with variable stocking rate. Stocking rate was adjusted twice a week during the grazing period (six or seven days) and post-grazing canopy height target of 15 cm. Animals were weighed every 28 days. Pastures were evaluated pre-grazing to estimate forage accumulation rate, forage mass (FM), leaf (LP) and stem (SP) percentages, and nutritive value. In the post-grazing, FM, LP, and SP were evaluated. Marandu palisadegrass pastures had greater FAR, pre-grazing FM, and hence, a greater SR when compared with BRS Ipyporã. However, compared with Marandu, BRS Ipyporã showed greater LP, leaf:stem ratio, crude protein, and in vitro organic matter digestibility, resulting in greater individual live weight gain. The lesser stocking rate in Ipyporã pastures was compensated, providing a greater individual live weight gain of steers, resulting in a similar live weight gain per area for the two cultivars. Thus, BRS Ipyporã is a good alternative for the diversification of pastures in the Cerrado region.
- Milk production and ingestive behavior of cows grazing on Marandu and Mulato II pastures under rotational stocking
- Using an observer rating method to assess the effects of rotational stocking method on beef cattle temperament over time
- Sward canopy structure and performance of beef heifers under supplementation in Brachiaria brizantha cv. Marandu pastures maintained with three grazing intensities in a continuous stocking system
- Ingestive behavior and performance of female lambs grazing on Marandu palisadegrass under different stocking rates
- Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management