The grazing behaviour of south devon cattle under experimental conditions

Halley, R. J.

doi:10.1016/s0950-5601(53)80016-x

Cited by 2 publications

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“…The results of numerous studies have been summarized by Tribe (18,19) and more recently by Hafez (7). The majority of these studies were made on cattle grazing under restricted conditions within the confines of 'strip' or 'rotational' systems of farm management where choice of herbage and freedom of movement were severely limited (4,5,8,16,17,21,24).…”

Section: Introductionmentioning

confidence: 99%

Some Observations on the Behaviour and Hill‐pasture Utilization of Irish Cattle

O’Donnell

Walton

1969

Grass and Forage Science

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grazing activities of four randomly selected individuals in a herd of 17 non-lactating, free-ranging cattle were observed on an Irish hill-farm of approximately 15 hectares which provided a choice of four distinct vegetative associations. A marked preference for Holcus-Poa-Anthoxanthum-Agrostis sward was noted. Grazing did not take place at night. During daylight it occupied three distinct periods, ceasing shortly after sunset and beginning at dawn.

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Section: Introductionmentioning

confidence: 99%

Some Observations on the Behaviour and Hill‐pasture Utilization of Irish Cattle

O’Donnell

Walton

1969

Grass and Forage Science

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The grazing behaviour and free-water intake of East African shorthorned zebu heifers at Serere, Uganda

Wilson

1961

J. Agric. Sci.

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1. Results are presented which refer to the behaviour of twenty young East African shorthorned zebu heifers grazing a Chloris gayana ley at Serere Experiment Station in north-east Uganda. The heifers were studied for two trial periods, each of 72 hr. duration, one during the transitional season and one during the dry season.2. Five of the heifers were recorded individually, and the results showed a fair degree of variation in behaviour between heifers. The difference in total ruminating time between two heifers was statistically significant, but all other differences were nonsignificant.3. The day to day variation in behaviour was very small. There was no significant difference in the time spent engaged in any major activity between the 3 days of either trial.4. During the transitional period of the year between the wet and dry seasons, young heifers spent 8·6 hr. grazing (22·5% at night; 77·5% by day) and 7·0 hr. ruminating out of a 24 hr. period. During the dry season, the heifers spent 7·8 hr. grazing (25·2% at night; 74·8% by day) and 6·5 hr. ruminating. There were no other important differences in behaviour time between the two seasons.5. In the transitional season the grazing was divided into three distinct periods, two during the day and one at night. In the dry season the afternoon grazing period was divided by a short resting period into two parts, making four periods in every 24 hr. An average of 2 hr. were spent night-grazing in both seasons, and this night grazing was independent of moonlight.

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The grazing behaviour of south devon cattle under experimental conditions

Cited by 2 publications

References 0 publications

Some Observations on the Behaviour and Hill‐pasture Utilization of Irish Cattle

Some Observations on the Behaviour and Hill‐pasture Utilization of Irish Cattle

The grazing behaviour and free-water intake of East African shorthorned zebu heifers at Serere, Uganda

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