Can Intensified Pasture Systems Reduce Enteric Methane Emissions from Beef Cattle in the Atlantic Forest Biome?

A - Papers appearing in refereed journals

Meo-Filho, P., Berndt, A., Pezzopane, J. R. M., Pedroso, A. F., Bernardi, A. C. C., Rodrigues, P. H. M., Bueno, I. C. S., Corte, R. R. and Oliveira, P. P. A. 2022. Can Intensified Pasture Systems Reduce Enteric Methane Emissions from Beef Cattle in the Atlantic Forest Biome? Agronomy. 12 (11), p. 2738. https://doi.org/10.3390/agronomy12112738

AuthorsMeo-Filho, P., Berndt, A., Pezzopane, J. R. M., Pedroso, A. F., Bernardi, A. C. C., Rodrigues, P. H. M., Bueno, I. C. S., Corte, R. R. and Oliveira, P. P. A.
Abstract

The objective of this study was to evaluate the effect of different pasture systems on beef steers’ performance, dry matter intake, enteric methane emission, carcass production, forage quality, and animal production per hectare (ha). The trial was conducted at Embrapa Southeast Livestock, São Carlos/SP, Brazil. Sixty Cachim beef steers (5/8 Charolais × 3/8 Zebu) with initial liveweights of 255 ± 7 kg were evaluated for two years under five different grazing production systems (EXT = Extensive; INT = Intensive; iCL = Integrated crop livestock; iCLF = Integrated crop livestock forest; iLF = Integrated livestock forest). The final liveweight was greater (p < 0.05) for the animals under the INT and iCL systems (484 ± 51 and 466 ± 79 kg, respectively) compared to animals in the iCLF, iLF and EXT systems (416 ± 57, 414 ± 50 and 429 ± 48 kg). The dry matter intake was significantly greater under the EXT system than it was under the iCL system (9.8 ± 2.1 and 7.5 ± 2.9 kg day−1). Regarding the emission intensity in relation to the liveweight gain per unit area (g CH4 kg LWG−1 ha−1 year−1), it differed significantly among the systems (EXT = 1.6; INT = 0.6; iCL = 0.8; ICLF = 1.1; ILF = 0.7). Similarly, the methane emission intensity differed in relation to the carcass production (kg CH4 kg−1 carcass; EXT = 0.496; INT = 0.250; iCL = 0.297; iCLF = 0.345; iLF = 0.286). Beef cattle that are raised in intensive and/or integrated pasture systems have a greater availability of forage mass and nutrients than those that are raised extensively. Pasture systems that undergo soil pH correction and fertilization, rotational grazing and/or integrated with maize cropping produce animals with greater average daily gain and final liveweights, thereby lessening the enteric methane emissions per kg of weight gain. In these systems, the efficiency in terms of the gain per land area is also greater, however, the systems that are integrated with a forest component (iLF and iCLF) are equal to that of the EXT system. The same pattern is observed in the intensity of the methane emission as for the efficiency of the animal gain per unit of land area

KeywordsBeef steers; Greenhouse gases; Canchim; Pasture; Integrated crop livestock forest
Year of Publication2022
JournalAgronomy
Journal citation12 (11), p. 2738
Digital Object Identifier (DOI)https://doi.org/10.3390/agronomy12112738
Web address (URL)https://www.mdpi.com/2073-4395/12/11/2738
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeS2N - Soil to Nutrition - Work package 2 (WP2) - Adaptive management systems for improved efficiency and nutritional quality
Publisher's version
Output statusPublished
Publication dates
Online04 Nov 2022
Publication process dates
Accepted02 Nov 2022
PublisherMDPI
ISSN2073-4395

Permalink - https://repository.rothamsted.ac.uk/item/98q70/can-intensified-pasture-systems-reduce-enteric-methane-emissions-from-beef-cattle-in-the-atlantic-forest-biome

7 total views
0 total downloads
7 views this month
0 downloads this month
Download files as zip