The nutrition of grazing ewes during pregnancy and lactation: A comparison of alkane-based and chromium/in vitro-based estimates of herbage intake

Australian Journal of Agricultural Research

Volumn 51, Issue 6, 2000, Pages 765-777

  Dove, H ^a   Freer, M ^a   Foot, J Z ^b,c  

^a CSIRO   (Australia)

^b AGRICULTURE VICTORIA RESEARCH   (Australia)

^c NONE   (United States)

Author keywords

Alkanes; Grazing sheep; Pasture intake; Supplement intake

Indexed keywords

EID: 0033868906     PISSN: 00049409     EISSN: None     Source Type: Journal    
DOI: 10.1071/AR99174     Document Type: Article

References (25)

1. Donnelly JR, Freer M (1974) Prediction of body composition in live sheep. Australian Journal of Agricultural Research 25, 825-834.
2. Dove H (1984) Gypsum labelled with tritiated water as a marker for estimating supplement intake by individual sheep fed in groups. Australian Journal of Experimental Agriculture and Animal Husbandry 24, 484-493.
3. Dove H (1992) Using the n-alkanes of plant cuticular wax to estimate the species composition of herbage mixtures. Australian Journal of Agricultural Research 43, 1711-1724.
4. Dove H, Freer M (1986) The use of tritiated gypsum for estimating individual intakes of pelletted or unpelletted supplement by lambs fed individually or in groups. Australian Journal of Experimental Agriculture 26, 19-22.
5. Dove H, Mayes RW (1991) The use of plant wax alkanes as marker substances in studies of the nutrition of herbivores: a review. Australian Journal of Agricicultural Research 42, 913-952.
6. Dove H, Mayes RW (1996) Plant wax components: A new approach to estimating intake and diet composition in herbivores. Journal of Nutrition 126, 13-26.
7. Dove H, Oliván M (1998) Using synthetic or beeswax alkanes for estimating supplement intake in sheep. Animal Production in Australia 22, 189-192.
8. Dove H, Freer M, Foot JZ (1988) Alkane capsules for measuring pasture intake. Proceedings of the Nutrition Society of Australia 13, 131.
9. Dove H, Foot JZ, Freer M (1989) Estimation of pasture intake in grazing ewes, using the alkanes of plant cuticular waxes. In 'Proceedings of the 16th International Grassland Congress'. Nice, France, pp. 1091-1092. (The French Grassland Society: Nice)
10. Dove H, Mayes RW, Freer M (1995) Using cuticular wax alkanes to estimate herbage intake in animals fed supplements. Annales de Zootechnie 44, 237.
11. Dove H, Mayes RW, Freer M (1996) Effects of species, plant part and age on the n-alkane concentrations in the cuticular wax of pasture plants. Australian Journal of Agricultural Research 47, 1333-1347.
12. Dove H, Milne JA, Mayes RW (1990) Comparison of herbage intakes derived from in vitro- or alkane-based digestibilities. Proceedings of the New Zealand Society of Animal Production 50, 457-459.
13. Dove H, Mayes RW, Lamb CS, Ellis KJ (1991) Evaluation of an intraruminal slow-release device for estimating herbage intake using synthetic and plant cuticular wax alkanes. In 'Proceedings of the 3rd International Symposium on the Nutrition of Herbivores'. p. 82. (Eds M Wan Zahari, Z Ahmad Tajuddin, N Abdullah, HK Wong) (Malaysian Society of Animal Production/Universiti Pertanian Malaysia: Serdang)
14. Dove H, Wood JT, Simpson RJ, Leury BJ, Gatford KL, Siever-Kelly C, Ciavarella TA (1999) Spray-topping annual grass pasture with glyphosate to delay loss of feeding value during summer. III. Quantitative basis of the alkane-based procedures for estimating diet selection and herbage intake by grazing sheep. Australian Journal of Agricultural Research 50, 475-485.
15. Fowler DG, Wilkins JF (1982) An evaluation of real time ultrasonic scanners for use in identifying litter number in pregnant ewes, Proceedings of the Austral fan Society of Animal Production 14, 491-494.
16. Freer M, Dove H, Axelsen A, Donnelly JR (1988) Responses to supplements by weaned lambs when grazing mature pasture or eating hay cut from the same pasture. Journal of Agricultural Science, Cambridge 110, 661-667.
17. Langlands JP (1987) Assessing the nutrient status of herbivores. In 'The nutrition of herbivores'. (Eds JB Hacker, JH Ternouth) pp. 363-390. (Academic Press: Marrickville, NSW)
18. Malossini F, Piasentier E, Bovolenta S (1990) n-Alkane content of some forages. Journal of the Science of Food and Agriculture 53, 405-409.
19. Malossini F, Bovolenta S, Piasentier E, Piras C, Martillotti F (1996) Comparison of n-alkanes and chromium oxide methods for estimating herbage intake by grazing dairy cows. Animal Feed Science and Technology 61, 155-165.
20. Mayes RW, Lamb CS, Colgrove PM (1986) The use of dosed and herbage n-alkanes as markers for the determination of herbage intake. Journal of Agricultural Science, Cambridge 107, 161-170.
21. Molle G, Decandia M. Dove H (1998) A comparison between different procedures for dosing n-alkanes to sheep. In 'Proceedings of the IX European Intake Workshop'. North Wyke, Devon, UK. pp. 53-57. (IGER: North Wyke, UK.)
22. Morley FHW, Bennett D, Clark KW (1964) The estimation of pasture yield in large grazing experiments. CSIRO Division of Plant Industry Field Station Record, Vol. 3, pp. 43-47.
23. Piasentier E, Bovolenta S, Malossini F, Susmel P (1995) Comparison of n-alkanes or chromium oxide methods for estimation of herbage intake by sheep. Small Ruminant Research 18, 27-32.
24. Tilley MA, Terry RA (1963) A two-stage technique for the in vitro digestion of forage crops. Journal of the British Grassland Society 18, 104-111.
25. Vulich SA, Hanrahan JP (1995) Faecal sampling for the estimation of herbage intake using n-alkanes: evaluation of sample pooling and the use of rectal grab samples. Journal of Agricultural Science, Cambridge 124, 79-86.