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Research, Policy and Practice

Table 3 Means (± SEM) of methane production and other performance parameters as affected by breed

From: Enteric methane output and weight accumulation of Nguni and Bonsmara cows raised under different grazing conditions

Performance and methane production

Breed

Bonsmara

Nguni

P-value

Body condition score (BCS)

3.23a ± 0.018

3.05b ± 0.018

< 0.0001

Body weight (kg)

424.09a ± 2.387

368.02b ± 2.415

< 0.0001

DMI (kg/day)

11.47a ± 0.065

9.95b ± 0.065

< 0.0001

CH4 (g/day/head)

254.32a ± 3.326

237.88b ± 3.364

0.0005

CH4 (g/kg DMI)

23.10a ± 0.536

24.81a ± 0.542

0.0873

CH4 (g/100 kg body weight)

62.16b ± 1.403

66.73a ± 1.419

0.0223

  1. Different letters “a and b” represent significant differences (P ≤ 0.05) between breeds