Grazing semi-natural pastures late in the season or every second year - effects on the weight gain of steers and composition of selected vegetation

Author: Spörndly Eva   Widén Olga  

Publisher: Taylor & Francis Ltd

ISSN: 0906-4702

Source: Acta Agriculturae Scandinavica, A, Vol.57, Iss.3, 2007-09, pp. : 159-172

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Abstract

In a five year experiment the weight gain of a total of 106 steers on three grazing treatments was studied: Partial-Delay (delayed onset of grazing in part of the grazing area), Intermittent (grazing every second year) and Continuous (continuous yearly grazing). Daily weight gain of steers was similar between treatments during the first three years but lower (P<0.05) on the Partial-Delay (0.6 kg) compared with the Intermittent and Continuous treatments (0.8-0.9 kg) during the last 2 experimental years. The mean proportions of grass, forbs and senescent plant material were similar between treatments: 59-61, 23-24, 15-17% of dry matter (DM), respectively.