Effect of periconceptional nutrition on the growth, behaviour and survival of the neonatal lamb

Periconceptional nutrition (PCN) can influence foetal hypothalamo-pituitary adrenal (HPA) axis function and alter cortisol secretion with possible consequences for maturation and growth of major organs, gestation length and behaviour. We examined effects of PCN on phenotype and survival of the neona...

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Bibliographic Details
Published in:Animal reproduction science 2015-09, Vol.160, p.12-22
Main Authors: Kleemann, D.O., Kelly, J.M., Rudiger, S.R., McMillen, I.C., Morrison, J.L., Zhang, S., MacLaughlin, S.M., Smith, D.H., Grimson, R.J., Jaensch, K.S., Brien, F.D., Plush, K.J., Hiendleder, S., Walker, S.K.
Format: Article
Language:English
Subjects:
Animal Feed - analysis
Animal Nutritional Physiological Phenomena
Animals
Animals, Newborn - physiology
Behavior, Animal
Behaviour
Diet - veterinary
Female
Fertilization
Growth
Maternal Nutritional Physiological Phenomena
Neonate
Ovine
Periconceptional nutrition
Pregnancy
Sheep - growth & development
Sheep - physiology
Survival
Survival Rate
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Summary:Periconceptional nutrition (PCN) can influence foetal hypothalamo-pituitary adrenal (HPA) axis function and alter cortisol secretion with possible consequences for maturation and growth of major organs, gestation length and behaviour. We examined effects of PCN on phenotype and survival of the neonatal lamb in 466 Merino ewes allocated to treatments providing 70%, 100% and 150% respectively, of maintenance requirements for 17 days prior and 6 days after insemination. Gestation length and birth weight for lambs in PCN treatment groups was similar (P>0.05) but low PCN decreased the size of the neonate (crown-rump-length and metacarpal length P
ISSN:0378-4320
1873-2232
DOI:10.1016/j.anireprosci.2015.06.017