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Effects of plane of nutrition during the first month of pregnancy on conception rate, foetal development and lamb output of mature and adolescent ewes

Published online by Cambridge University Press:  13 March 2007

R. W. Annett  and
A. F. Carson
R. W. Annett*
Affiliation:
Agri-Food and Biosciences Institute (AFBI), Agriculture Branch, Large Park, Hillsborough, Co. Down BT26 6DR, UK
A. F. Carson*
Affiliation:
Agri-Food and Biosciences Institute (AFBI), Agriculture Branch, Large Park, Hillsborough, Co. Down BT26 6DR, UK
*
†E-mail: Ronald.Annett@afbini.gov.uk
†E-mail: Ronald.Annett@afbini.gov.uk
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Abstract

Embryo transfer studies have demonstrated that high plane feeding in early pregnancy is detrimental to the successful establishment of pregnancy in adolescent but not mature ewes. To further examine this relationship with ewes that conceive naturally and to investigate its effects on foetal development, 102 Greyface and Texel×Greyface ewes (body condition score (BCS) 3·8) and 114 Texel×Greyface adolescent ewes (BCS 3·3) were allocated to one of three treatments following a synchronized mating. From day 1 to 31 of pregnancy, animals were offered grass nuts (10·2 MJ metabolizable energy (ME) per kg dry matter (DM); 163 g crude protein per kg DM) at one of three levels to supply approximately 2·0 (H); 1·0 (M) and 0·6 (L) of their predicted ME requirements for maintenance. Increasing the post-mating plane of nutrition resulted in significant increases in ewe live weight (P<0·001) and BCS (P<0·001) during the treatment period. When diets were standardized for all animals during mid pregnancy (days 31 to 105), L ewes gained more live weight (P<0·05) and BCS (P<0·001) than H ewes. Early pregnancy nutrition had no effect on the conception rate of mature ewes; however adolescent ewes on the H and M treatments had lower conception rates (P<0·05) than those offered the L diet (0·59, 0·61 and 0·82 respectively). As a result, L adolescent ewes tended to have a higher mean total lamb birth weight per ewe mated (P=0·09) although lamb output at weaning was not influenced by plane of nutrition. Lambs born from adolescent mothers had lower lamb birth weights (P<0·001) and a shorter mean head length, crown-rump length and thoracic girth (P<0·001). Foetuses from H ewes had longer hind legs than those from L ewes on day 83 of gestation (P<0·05) and at term (P<0·05). The results of this study suggest that allowing adolescent but not mature ewes to lose live weight and body condition can increase the proportion of productive ewes following a natural service.

Keywords

ewesfertilityfoetal growthnutrition
Type
Research Article
Information
Animal Science , Volume 82 , Issue 6 , December 2006 , pp. 947 - 954
Copyright
Copyright © British Society of Animal Science 2006

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References

Abecia, J. A., Lozano, J. M., Forcada, F., Zarazaga, L. (1997) Effect of level of dietary energy and protein on embryo survival and progesterone production on day eight of pregnancy in Rasa Aragonesa ewes. Animal Reproduction Science 48: 209–218.CrossRefGoogle ScholarPubMed
Agricultural and Food Research Council. (1993) Energy and protein requirements of ruminants. An advisory manual prepared by the AFRC Technical Committee on Responses to Nutrients, CAB International, Wallingford, UK.Google Scholar
Black, J. L. (1983) Growth and development of lambs. In Sheep production (ed. Haresign, W.), pp. 21–58, Butterworths, London.Google Scholar
Brink, D. R. (1990) Effects of body weight gain in early pregnancy on feed intake, gain, body condition in late pregnancy and lamb weights. Small Ruminant Research 3: 421–424.CrossRefGoogle Scholar
Carson, A. F., McClinton, L. W., Steen, R. W. J. (1999) Effects of Texel of Rouge de l'Ouest genes in lowland ewes and rams on ewe prolificacy, lamb viability and weaned lamb output. Animal Science 68: 69–78.CrossRefGoogle Scholar
Dawson, L. E. R., Carson, A. F., Kilpatrick, D. J. (1999) The effect of the digestible undegradable protein concentration of concentrates and protein source offered to ewes in late pregnancy on colostrum production and lamb performance. Animal Feed Science and Technology 82: 21–36.CrossRefGoogle Scholar
Gunn, R. G., Doney, J. M., Smith, W. F. (1984) The effect of different durations and times of high level feeding prior to mating on the reproductive performance of Scottish Blackface ewes. Animal Production 39: 99–105.Google Scholar
Holst, P. J., Killeen, I. D., Cullis, B. R. (1986) Nutrition of the pregnant ewe and its effect on gestation length, lamb birth weight and lamb survival. Australian Journal of Agricultural Research 37: 647–655.CrossRefGoogle Scholar
Hunter, R. H. F., Nichol, R., Crabtree, S. M. (1980) Transport of spermatozoa in the ewe: timing of the establishment of a functional population in the oviduct. Reproduction, Nutrition, Development 20: 1869–1875.CrossRefGoogle ScholarPubMed
Khalaf, A. M., Doxey, D. L., Baxter, J. T., Black, W. J. M., Fitzsimons, J., Ferguson, J. A. (1979) Late pregnancy ewe feeding and lamb performance in early life. 2. Factors associated with perinatal lamb mortality. Animal Production 29: 401–410.Google Scholar
Krausgrill, D. I., Tulloh, N. M., Shorthose, W. R., Sharpe, K. (1999) Effects of weight loss in ewes in early pregnancy on muscles and meat quality of lambs. Journal of Agricultural Science, Cambridge 132: 103–116.CrossRefGoogle Scholar
McEwan, A. D., Fisher, E. W., Selman, I. E., Penhale, W. J. (1970) A turbidity test for the estimation of immune globulin levels in neonatal calf serum. Clinica Chimica Acta 27: 155–163.CrossRefGoogle ScholarPubMed
Meat and Livestock Commission. (1981) Feeding the ewe, second edition, MLC Sheep Improver Series, Milton Keynes.Google Scholar
Naylor, J. M. (1986) Colostrum and passive immunity in food-producing animals. In Current veterinary therapy: food animal practice 2 (ed. Howard, J. L.), pp. 99–104, W.B. Saunders Company, Philadelphia.Google Scholar
Nordby, D. J., Field, R. A., Riley, M. L., Kercher, C. J. (1987) Effects of maternal undernutrition during early pregnancy on growth, muscle cellularity, fibre type and carcass composition in lambs. Journal of Animal Science 64: 1419–1427.CrossRefGoogle ScholarPubMed
Parr, R. A., Davis, I. F., Fairclough, R. J., Miles, M. A. (1987) Overfeeding during early pregnancy reduces peripheral progesterone concentration and pregnancy rate in sheep. Journal of Reproduction and Fertility 80: 317–320.CrossRefGoogle ScholarPubMed
Parr, R. A., Williams, A. H., Campbell, I. P., Witcombe, G. F., Roberts, A. M. (1986) Low nutrition of ewes in early pregnancy and the residual effect on the offspring. Journal of Agricultural Science, Cambridge 106: 81–87.CrossRefGoogle Scholar
Robinson, J. J. (1986) Nutrition and embryo loss in farm animals Embryonic mortality in farm animals. In Sreenan, J. M. and Diskin, M. G., pp. 235–248, Martinus Nijhoff Publishers, Dordrecht, Netherlands.CrossRefGoogle Scholar
Robinson, J. J. (1977) The influence of maternal nutrition on ovine foetal growth. Proceedings of the Nutrition Society 36: 9–16.CrossRefGoogle ScholarPubMed
Robinson, J. J., Ashworth, C. J., Rooke, J. A., Mitchell, L. M., McEvoy, T. G. (2006) Nutrition and fertility in ruminant livestock. Animal Feed Science and Technology 126: 259–276.CrossRefGoogle Scholar
Robinson, J. J., Sinclair, K. D., McEvoy, T. G. (1999) Nutritional effects on foetal growth. Animal Science 68: 315–331.CrossRefGoogle Scholar
Steen, R. W. J. (1986) The effect of plane of nutrition and type of diet offered to yearling Friesian steers during a winter store period on subsequent performance. Animal Production 42: 29–37.Google Scholar
Swatland, H. J., Cassens, R. G. (1973) Inhibition of muscle growth in foetal sheep. Journal of Agricultural Science, Cambridge 80: 503–509.CrossRefGoogle Scholar
Thornbury, J. C., Sibbons, P. D., van Velzen, D., Trickey, R., Spitz, L. (1993) Histological investigations into the relationship between low birth weight and spontaneous bowel damage in the neonatal piglet. Pediatric Pathology 13: 59–69.CrossRefGoogle ScholarPubMed
Vincent, I. C., Williams, H., Ll. Hill, R. (1985) The influence of a low nutrient intake after mating on gestation and perinatal survival of lambs. British Veterinary Journal 141: 611–617.CrossRefGoogle ScholarPubMed
Wallace, J. M., Aitken, R. P., Cheyne, M. A. (1994) Effect of post-ovulation nutritional status on early conceptus survival and growth in vivo and luteotrophic protein secretion in vitro. Reproduction, Fertility and Development 6: 253–259.CrossRefGoogle ScholarPubMed
Wallace, J. M., Aitken, R. P., Cheyne, M. A. (1996) Nutrient partitioning and fetal growth in rapidly growing adolescent ewes. Journal of Reproduction and Fertility 107: 183–190.CrossRefGoogle ScholarPubMed
Wallace, J. M., Bourke, D. A., Aitken, R. P., Cruickshank, M. A. (1999) Switching maternal dietary intake at the end of the first trimester has profound effects on placental development and fetal growth in adolescent ewes carrying singleton foetuses. Biology of Reproduction 61: 101–110.CrossRefGoogle Scholar
Wallace, J. M., Da Silva, P., Aitken, R. P., Cruickshank, M. A. (1997) Maternal endocrine status in relation to pregnancy outcome in rapidly growing adolescent sheep. Journal of Endocrinology 155: 359–368.CrossRefGoogle ScholarPubMed
Wallace, J. M., Milne, J. S., Aitken, R. P. (2005) The effect of overnourishing singleton-bearing adult ewes on nutrient partitioning to the gravid uterus. British Journal of Nutrition 94: 533–539.CrossRefGoogle Scholar
Wenham, G. (1981) A radiographic study of the changes in skeletal growth and development of the foetus caused by poor nutrition in the pregnant ewe. British Veterinary Journal 137: 176–187.CrossRefGoogle ScholarPubMed