Improving the nutrition of Merino ewes during pregnancy increases the fleece weight and reduces the fibre diameter of their progeny's wool during their lifetime and these effects can be predicted from the ewe's liveweight profile

Animal Production Science

Volumn 51, Issue 9, 2011, Pages 794-804

  Thompson, A N ^a,b,c   Ferguson, M B ^a,b,c   Gordon, D J ^a,d   Kearney, G A ^a,e   Oldham, C M ^b   Paganoni, B L ^b  

^a DEPARTMENT OF PRIMARY INDUSTRIES   (Australia)

^b DEPARTMENT OF AGRICULTURE AND FOOD WESTERN AUSTRALIA   (Australia)

^c MURDOCH UNIVERSITY   (Australia)

^d Rural Industries Skills Training   (Australia)

^e NONE   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

DIAMETER; EXPERIMENTAL STUDY; HYPOTHESIS TESTING; LACTATION; NUTRITIONAL STATUS; PASTURE; PREGNANCY; SHEEP; SPATIOTEMPORAL ANALYSIS; WEANING; WOOL;

AUSTRALIA; VICTORIA [AUSTRALIA]; WESTERN AUSTRALIA;

EID: 80052843156     PISSN: 18360939     EISSN: None     Source Type: Journal    
DOI: 10.1071/AN10161     Document Type: Article

References (32)

1. Behrendt R, van Burgel AJ, Bailey A, Barber P, Curnow M, Gordon DJ, Hocking Edwards JE, Oldham CM, Thompson AN (2011) On-farm paddock-scale comparisons across southern Australia confirm that increasing the nutrition of Merino ewes improves their production and the lifetime performance of their progeny. Animal Production Science 51, 805-812. doi:10.1071/AN10183
2. Brown DJ, Ball AJ, Mortimer R, Oppenheimer M (2002) Incorporating SRS(R)/Elite wool traits into genetic evaluations for Merino sheep 1. Phenotypic variation and heritabilities. Wool Technology and Sheep Breeding 50(3), 373-377. (Pubitemid 36242659)
3. Brown DJ, Mortimer RL, Mortimer ML (2006) Genetic aspects of greasy wool colour assessments in Merino sheep. Proceedings of the Association of Animal Breeding and Genetics 14, 119-122.
4. Denney GD (1990) Effects of preweaning farm environment on adult wool production of Merino sheep. Australian Journal of Experimental Agriculture 30, 17-25. doi:10.1071/EA9900017
5. Everitt GC (1967) Residual effects of prenatal nutrition on the postnatal performance of Merino sheep. Proceedings of the New Zealand Society of Animal Production 27, 52-68.
6. FergusonMB,ThompsonAN, Gordon DJ, HyderMW,Kearney GA, Oldham CM, Paganoni BL (2011) The wool production and reproduction of Merino ewes can be predicted from changes in liveweight during pregnancy and lactation. Animal Production Science 51, 763-775. doi:10.1071/AN10158
7. GENSTAT Committee (2008) 'GENSTAT for Windows.' 11th edn. (VSN International: Hertfordshire, UK)
8. Hocking Edwards JE (1999) Reduction in wool follicles prior to birth in Merino sheep. Reproduction, Fertility and Development 11, 229-234. doi:10.1071/RD99049
9. Hocking Edwards JE, Birtles MJ, Harris PM, Parry A, Paterson E, Wickham GA, McCutcheon SN (1994) Prenatal follicle development in Romney, Merino and Merino-Romney cross sheep. Proceedings of the New Zealand Society of Animal Production 54, 131-134.
10. Hocking Edwards JE, Copping KJ, Thompson AN (2011) Managing the nutrition of twin-bearing ewes during pregnancy using Lifetimewool recommendations increases production of twin lambs. Animal Production Science 51, 813-820. doi:10.1071/AN09158
11. Huisman AE, Brown DJ, Ball AJ, Graser HU (2008) Genetic parameters for bodyweight, wool, and disease resistance and reproduction traits in Merino sheep. 1. Description of traits, model comparison, variance components and their ratios. Australian Journal of Experimental Agriculture 48, 1177-1185. doi:10.1071/EA08119
12. Hutchison G, Mellor DJ (1983) Effects of maternal nutrition on the initiation of secondary wool follicles in foetal sheep. Journal of Comparative Pathology 93, 577-583. (Pubitemid 14022918)
13. Jackson N, Nay T, Turner HN (1975) Response to selection in Australian Merino sheep. VII. Phenotypic and genetic parameters for some wool follicle characteristics and their correlation with wool and body traits. Australian Journal of Agricultural Research 26, 937-957. doi:10.1071/AR9750937
14. Jefferies BC (1961) Body condition scoring and its use in management. Tasmanian Journal of Agriculture 32, 19-21.
15. Kelly RW (1992) Lamb mortality and growth to weaning in commercial Merino flocks in Western Australia. Australian Journal of Agricultural Research 43, 1399-1416. doi:10.1071/AR9921399
16. Kelly RW, Macleod I, Hynd P, Greeff JC (1996) Nutrition during fetal life alters annual wool production and quality in young Merino sheep. Australian Journal of Experimental Agriculture 36, 259-267. doi:10.1071/EA9960259 (Pubitemid 126560882)
17. Kelly RW, Greeff JC, Macleod I (2006) Lifetime changes in wool production of Merino sheep following differential feeding in fetal and early life. Australian Journal of Agricultural Research 57, 867-876. doi:10.1071/AR05312 (Pubitemid 44214088)
18. Kleemann DO, Walker SK (2005) Fertility in South Australian commercial Merino flocks: relationships between reproductive traits and environmental cues. Theriogenology 63, 2416-2433. (Pubitemid 40727881)
19. Oldham CM, Thompson AN, Ferguson MB, Gordon DJ, Kearney GA, Paganoni BL (2011) The birthweight and survival of Merino lambs can be predicted from the profile of liveweight change of their mothers during pregnancy. Animal Production Science 51, 776-783. doi:10.1071/AN10155
20. Robinson JJ, Sinclair KD, McEvoy TG (1999) Nutritional effects on foetal growth. Animal Science (Penicuik, Scotland) 68, 315-331. (Pubitemid 129511166)
21. Safari E, Fogarty NM, Gilmour AR (2005) A review of genetic parameter estimates for wool, growth, meat and reproduction traits in sheep. Livestock Production Science 92, 271-289. doi:10.1016/j.livprodsci.2004.09.003 (Pubitemid 40359240)
22. Saul G, Kearney G, Borg D (2011) Pasture systems to improve productivity of sheep in south-western Victoria. 2. Animal production from ewes and lambs. Animal Production Science 51, in press.
23. SchinckelPG(1955)Thepostnatal development of the skin follicle population in a strain of Merino sheep. Australian Journal of Agricultural Research 6, 68-76. doi:10.1071/AR9550068
24. Schinckel PG, Short BF (1961) The influence of nutritional level during prenatal and early postnatal life on adult fleece and body characteristics. Australian Journal of Agricultural Research 12, 176-202. doi:10.1071/AR9610176
25. Short BF (1955a) Development of the secondary follicle population in sheep. Australian Journal of Agricultural Research 6, 62-67. doi:10.1071/AR9550062
26. Short BF (1955b) Developmental modification of fleece structure by adverse maternal nutrition. Australian Journal of Agricultural Research 6, 863-872. doi:10.1071/AR9550863
27. Thompson AN, Doyle PT, GrimmM(1994) Effects of differential grazing of annual pastures in spring on sheep and wool production. Australian Journal of Agricultural Research 45, 367-389. doi:10.1071/AR9940367
28. Thompson AN, Ferguson MB, Campbell AJD, Gordon DJ, Kearney GA, Oldham CM, Paganoni BL (2011) Improving the nutrition of Merino ewes during pregnancy and lactation increases weaning weight and survival of progeny but does not affect their mature size. Animal Production Science 51, 784-793. doi:10.1071/AN09139
29. Wheeler JL, Reardon TF, Hedges DA, Rocks RL (1971) The contribution of the conceptus to weight change in pregnant Merino ewes at pasture. The Journal of Agricultural Science 76, 347-353. doi:10.1017/S0021859600069264
30. Wheeler JL, Hedges DA, Mulcahy C (1977) The use of dyebanding for measuring wool production and fleece tip wear in rugged and unrugged sheep. Australian Journal of Agricultural Research 28, 721-735. doi:10.1071/AR9770721
31. Young JM, Thompson AN, Oldham CM (2008) Increasing profitability by pregnancy scanning ewes. Livestock Updates, Department of Agriculture and Food, WA, 1-2 July 2008, Perth.
32. Young JM, Thompson AN, Curnow M, Oldham CM (2011) Whole-farm profit and the optimum maternal liveweight profile of Merino ewe flocks lambing in winter and spring are influenced by the effects of ewe nutrition on the progeny's survival and lifetime wool production. Animal Production Science 51, 821-833. doi:10.1017/AN10078