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Effect of sward height and sheep breed on sward composition during summer grazing period

Published online by Cambridge University Press:  20 November 2017

A.R. Mantecón ,
E. Jaramillo ,
P. Frutos  and
P. LavÃn
A.R. Mantecón
Affiliation:
Estación AgrÃcola Experimental, CSIC. Apdo 788. 24080 León (Spain)
E. Jaramillo
Affiliation:
Estación AgrÃcola Experimental, CSIC. Apdo 788. 24080 León (Spain)
P. Frutos
Affiliation:
Estación AgrÃcola Experimental, CSIC. Apdo 788. 24080 León (Spain)
P. LavÃn
Affiliation:
Estación AgrÃcola Experimental, CSIC. Apdo 788. 24080 León (Spain)
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Extract

The sward height could determine the intake of the herbivores and, at the same time, to affect to sward composition (Morris et al., 1994). If the foraging strategies is different among species could be also different among breeds of sheep (Milne, 1991).

The objective of this work is to know the effect of sward height and sheep breed (churra and merina) on sward composition under irrigated and continous grazing system.

The experiment was carried out according a factorial design 2x2x5, defined by:

2 sward height (SH): low (LSH:<3.5 cm) and high (HSH:>6.5 cm)

2 Spanish breed of sheep: Churra and Merina

5 sampling periods: 1 (29.07), 2 (20.07), 3 (24.08), 4 (21.09) and 5 (19.10)

The SH was recorded three times a week and they were adjusted using variable stocking rates with spares similar ewes. Available dry matter (kg/ha) was 318 and 943 for the low (3.7 cm) and high (6.5 cm) sward height, respectively.

Type
Sheep Nutrition
Information
Proceedings of the British Society of Animal Science , Volume 1995 , March 1995 , pp. 84
Copyright
Copyright © The British Society of Animal Science 1995

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References

CSS (1991). Statistica. Vol. I: Quick CSS. Tulsa Oklahoma. USA.Google Scholar
Milne, J.A. (1991). Diet selection by grazing animals. Proceeding of the Nutrition Society, 50, 77–85.10.1079/PNS19910013CrossRefGoogle ScholarPubMed
Morris, ST., McCutcheon, S.N., Parker, W.J. and Blair, H.T. (1994). Effect of sward height on herbage intake and performance of lactating ewes lambed in winter and continously stocked on pasture.Journal of Agricultural Science, Cambridge, 122, 471–482.10.1017/S0021859600067411CrossRefGoogle Scholar
Tilley, J.M.A. and Terry, R.A: (1963). A two-stage technique for the “ in vitro ” digestion of forage crops. Journal of British Grassland Society, 18, 104–111.10.1111/j.1365-2494.1963.tb00335.xCrossRefGoogle Scholar