Investigation of the potential ingestion rates of different sourveld grasses by cattle and sheep

African Journal of Range and Forage Science

Volumn 13, Issue 2, 1996, Pages 49-53

  O'Reagain, P J ^a,b   Goetsch, B C ^a  

^a Dohne Agricultural Development Institute   (South Africa)

^b DEPARTMENT OF AGRICULTURE AND FISHERIES   (Australia)

Author keywords

Bite rate; Bite size; Intake rate; Plant structure

Indexed keywords

EID: 85024004173     PISSN: 10220119     EISSN: 17279380     Source Type: Journal    
DOI: 10.1080/10220119.1996.9647895     Document Type: Article

References (20)

1. Acocks JPH 1988. Veld types of South Africa. Memoirs of the Botanical Survey of South Africa 57.
2. AUden WG & Whittaker IA 1970. The déterminants of herbage intake by grazing sheep: the inter-relationship of factors influencing herbage intake and availability. Australian Journal of Agricultural Research 21:755-766.
3. Black JL & Kenney PA 1984. Factors affecting diet selection by sheep. II. Height and density of pasture. Australian Journal of Agricultural Research 35:565-578.
4. Cooper SM & Owen-Smith N 1986. Effect of plant spinescence on large mammalian herbivores. Oecologia 68:446-455.
5. Emlen JM 1966. The role of time and energy in food preference. American Naturalist 100:611-617.
6. Gibbs Russell GE, Watson L, Koekemoer M, Sniook L, Barber NP, Anderson HM & Dailing MJ 1990. Grasses of southern Africa. Memoirs of the Botanical Survey of South Africa 58.
7. Greenwood GB & Demment MW 1988. The effect of fasting on short-term caule grazing behaviour. Grass & Forage Science 43:377-386.
8. Grunow JO & Van Ginkel B 1965. Determination of the bulk utilization of different veld grasses under grazing conditions by means of an individuai-tuft-clipping method. South African Journal of Agricultural Science 8:487-506.
9. Hodgson J 1981. Influence of sward characteristics on diet selection and herbage intake by the grazing animal. In: Hacker JB (ed.). Nutritional limits to animal production. Proceedings of die International Congress held at St. Lucia, Queensland, Australia.
10. Illius AW, Clark DA & Hodgson J 1992. Discrimination and patch choice by sheep grazing grass-clover swards. Journal of Applied Ecology 61:183-189.
11. Laca EA, Ungar ED, Seligman N, & Demment MW 1992. Effects of sward height and bulk density on bite dimensions of cattle grazing homogeneous swards. Grass & Forage Science 47:91-102.
12. Newman JA, Penning PD, Parsons AJ, Harvey A & Orr RJ 1994. Fasting affects intake behaviour and diet preference of grazing sheep. Animal Behaviour 47:185-193.
13. O'Reagain PJ 1993. Plant structure and the acceptability of different grasses to sheep. Journal of Range Management 46:232-236.
14. O'Reagain PJ 1994. The effect of sward structure and species composition on dietary quality and intake in cattle and sheep grazing the Dölme Sourveld. PhD thesis, University of the Witwatersrand, Johannesburg.
15. O'Reagain PJ & Mentís MT 1989. The effect of plant structure on the acceptability of different grass species to cattle. Journal of the Grassland Society of Southern Africa 6:163-170.
16. O'Reagain PJ, Goetsch BC & Owen-Smith RN 1996. Effect of species composition and sward structure on the ingestivo behaviour of cattle and sheep grazing South African sourvcld. Journal of Agricultural Science, Cambridge 127: 271-280.
17. Penning PD & Hooper GE 1985. An evaluation of Uic use of short-term weight changes in grazing sheep for estimating intake. Grass & Forage Science 40:79-84.
18. Stobbs IH 1973. The effect of plant structure on the intake of tropical pastures. I. Variation in the bite size of grazing cattle. Australian Journal of Agricultural Research 24:809-819.
19. Stoltz CW & Danckwcrts JE 1990. Grass species selection patterns on rotationally grazed Dölme sourveld during autumn and early winter. Journal of the Grassland Society of southern Africa 7:92-96.
20. SAS Institute 1991. SAS/STAT User's guide, Release 6.03 (6th edn). Cary, North Carolina.