Plane of nutrition of Corriedale ewe lambs from foetal life to the onset of breeding affects weight at service and reproductive outcome
L. Piaggio A , H. Deschenaux A , F. Baldi D , S. Fierro E , G. Quintans C and G. Banchero B FA Secretariado Uruguayo de la Lana, Rambla Baltasar Brum, Montevideo 3764, Uruguay.
B Instituto Nacional de Investigación Agropecuaria, Ruta 50 km 12, Colonia 70000, Uruguay.
C Instituto Nacional de Investigación Agropecuaria, Ruta 8 km 282, Treinta y Tres, Uruguay.
D Departamento de Zootecnia, Faculdade de Ciências Agrárias e Veterinárias, Universidad Estatal Paulista, Via de Acesso Prof. Paulo Donato Castellane s/n, 14884-900, Jaboticabal, São Paulo.
E Departamento de Salud en los Sistemas Pecuarios, Facultad de Veterinaria, Universidad de la República, EEMAC, Paysandú, Uruguay.
F Corresponding author. Email: gbanchero@inia.org.uy
Animal Production Science 55(8) 1011-1017 https://doi.org/10.1071/AN13260
Submitted: 21 June 2013 Accepted: 27 May 2014 Published: 15 September 2014
Abstract
The objective of this study was to identify periods in the life (foetal and postnatal) of Corriedale ewe lambs where different nutrition levels can affect bodyweight at breeding and pregnancy rate in their first year of life. The effect of three different phases of nutrition on the growth and pregnancy rate (n = 133) of Corriedale ewe lambs of 7 months of age were evaluated. Phase 1 included the last phase of gestation of their mothers (30 last days of gestation, Day –30; partum = Day 0) until marking (Day 24). Phase 2 was between marking and weaning (Day 114) and phase 3 between weaning to the onset of breeding (Day 207). For phase 1, 350 adult ewes had access to improved pastures (phase 1, H) or native pastures (phase 1, L). After lambing, all ewes and their lambs were offered native pastures. After marking only ewes bearing females lambs were kept. In phase 2, 67 lambs born to H and 66 lambs born to L ewes were sorted in two new treatments: access to native pastures supplemented with ~1% of their bodyweight with soybean meal (phase 2, H) or access to native pastures alone (phase 2, L). In phase 3, each of the lambs of the four treatments applied during phase 2 were sorted in two new treatments: access to improved pastures (phase 3, H) or native pastures supplemented with 0.7% of liveweight with soybean meal (phase 3, L). Breeding period lasted 41 days and pregnancy diagnosis was performed 86 days after the onset of breeding. The pregnancy rate varied from 0% to 47%. Phase 3 of nutrition was the only phase that affected pregnancy rate (28% vs. 10% for female lambs offered H and L plane of nutrition respectively; P = 0.005). A discriminative analysis demonstrated that the liveweight at breeding was the only variable that affected the success of pregnancy in ewe lambs (P = 0.0025). Moreover, the ewe lambs that were heavier at the onset of breeding (more than 35 kg or in average 38 kg) were the most successful to get pregnant (35% of pregnancy for lambs over 35 kg and 13% for lambs under 35 kg, P = 0.0044). In conclusion, under the conditions of this experiment, the most important parameters to explain successful pregnancy of ewe lambs were the growth rate after weaning, and the liveweight at the onset of breeding.
Additional keywords: fertility, foetal-, pre- and post-weaning nutrition, sheep.
References
AOAC (1984) ‘Official methods of analysis of the Association of Official Analytical Chemists.’ 14th edn. (AOAC: Arlington, VA).Azzarini M (1985) Non genetic ways to improve sheep prolificacy II. In ‘Technical Seminar of Sheep Production.’ pp. 111–132. (Occasional Publication, Uruguayan Wool Secretariat: Salto, Uruguay)
Azzarini M (1991) Nutrition effect during breeding on reproductive outcome 1. Growth during the first age of life and onset of puberty. Sheep Production, Uruguay 4, 39–54.
Beck NFG, Davies MCG (1994) The effect of stage of breeding season or pre-mating oestrogen and progesterone therapy on fertility in ewe lambs. Animal Production 59, 429–434.
| The effect of stage of breeding season or pre-mating oestrogen and progesterone therapy on fertility in ewe lambs.Crossref | GoogleScholarGoogle Scholar |
Bermúdez R, Ayala W (2005) Forage production in a native pasture of the Lomadas del Este, Uruguay. Technical Bulletin INIA 151, 33–39.
Bianchi G, Garibotto G (2009) Use of hybrid mothers and its impact in the production system. In ‘Technological alternatives for the ovine meat production under grazing systems.’ (Ed. G Bianchi). (Editorial Hemisferio Sur: Montevideo, Uruguay).
Blanc F, Fabre D, Bocquier F, Canepa S, Delavaud C, Caraty A, Chilliard Y, Debus N (2007) Effect of a post-weaning restricted nutrition on the initiation of puberty, plasma leptin and the reproductive performance of early bred Merino ewe-lambs. In ‘Proceedings of the 11th seminar of the FAO-CIHEAM Sub-Network on Sheep and Goat Nutrition’ (Eds A Priolo, L Biondi, H Ben Salem, P Morand-FEHR). (CIHEAM/FAO/Università di Catania: Zaragoza, Spain). [ISBN: 2–85352–363–2].
Caravia V, Fernández Abella D (2006) Puberty and reproductive outcome in ewe lambs. Sheep Production, Uruguay 18, 5–23.
Cobby JM, Ridout MS, Basset PJ, Large RV (1985) An investigation into the use of ranked set sampling on grass and grass-clover swards. Grass and Forage Science 40, 257–263.
| An investigation into the use of ranked set sampling on grass and grass-clover swards.Crossref | GoogleScholarGoogle Scholar |
Craig RL (1982) Breeding from Romney ewe hoggets in the Waihora group breeding scheme. New Zealand Agricultural Science 16, 101–104.
Dýrmundsson OR (1973) Puberty and early reproductive performance in sheep. 1. Ewe lambs. Animal Breeding Abstracts 41, 273–289.
Dýrmundsson OR (1981) Natural factors affecting puberty and reproductive performance in ewe lambs: a review. Livestock Production Science 8, 55–65.
| Natural factors affecting puberty and reproductive performance in ewe lambs: a review.Crossref | GoogleScholarGoogle Scholar | 25217075PubMed |
Foster DL (1981) Mechanism for delay of first ovulation in lamb born in the wrong season. Biology of Reproduction 25, 85–92.
| Mechanism for delay of first ovulation in lamb born in the wrong season.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL3MXltFamtb0%3D&md5=4877aecf7385c6c697b99791c458dd99CAS | 7284520PubMed |
Goering HK, Van Soest PJ (1970) ‘Forage fiber analysis.’ Agriculture Handbook no. 379. (USDA-ARS: Washington, DC).
Hare L, Bryant MJ (1985) Ovulation rate and embryo survival in young ewes mated either at puberty or at the second or third oestrus. Animal Reproduction Science 8, 41–52.
| Ovulation rate and embryo survival in young ewes mated either at puberty or at the second or third oestrus.Crossref | GoogleScholarGoogle Scholar |
Kenyon PR (2012). ‘Hogget performance. Unlocking the potential.’ Beef + lamb New Zealand.
Kenyon PR, Morel PCH, Morris ST, West DM (2005) The effect of individual live weight and use of teaser rams prior to mating on the reproductive performance of ewe hoggets. New Zealand Veterinary Journal 53, 340–343.
| The effect of individual live weight and use of teaser rams prior to mating on the reproductive performance of ewe hoggets.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD2Mrktl2itw%3D%3D&md5=edcdf791d3c9593d01dbd3bacf1c7601CAS | 16220128PubMed |
Kenyon PR, Morel PCH, West DM, Morris ST (2006) Effect of liveweight and teasing of ewe hoggets prior to breeding on lambing pattern and weight of singleton lambs. New Zealand Journal of Agricultural Research 49, 341–347.
| Effect of liveweight and teasing of ewe hoggets prior to breeding on lambing pattern and weight of singleton lambs.Crossref | GoogleScholarGoogle Scholar |
Kenyon PR, Smith SL, Morel PCH, Morris ST, West DM (2009) The effect of the maturity and prior breeding activity of rams and body condition score of ewe hoggets on the reproductive performance of ewe hoggets. New Zealand Veterinary Journal 57, 290–294.
| The effect of the maturity and prior breeding activity of rams and body condition score of ewe hoggets on the reproductive performance of ewe hoggets.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD1MnmslKmtQ%3D%3D&md5=c93eb8e26a0c9df6b10bb4c3b7522b6dCAS | 19802043PubMed |
Kenyon PR, Morris ST, West DM (2010) The proportion of rams and the condition of ewe lambs at joining influences their breeding performance. Animal Production Science 50, 454–459.
| The proportion of rams and the condition of ewe lambs at joining influences their breeding performance.Crossref | GoogleScholarGoogle Scholar |
Kenyon PR, van der Linden DS, Wesr DM, Morris ST (2011) The effect of breeding hoggets on lifetime performance. New Zealand Journal of Agricultural Research 54, 321–330.
| The effect of breeding hoggets on lifetime performance.Crossref | GoogleScholarGoogle Scholar |
Meyer HH, French RL (1979) Hogget liveweight oestrous relationship among sheep breeds. Proceedings of the New Zealand Society of Animal Production 39, 56–62.
Mulholland JG (1986) Introducing supplements to newly weaned lambs. Proceedings of the Australian Society of Animal Production 16, 287–290.
Mulvaney FJ, Morris ST, Kenyon PR, Morel PCH, West DM (2010) Effect of nutrition pre-breeding and during pregnancy on breeding performance of ewe lambs. Animal Production Science 50, 953–960.
| Effect of nutrition pre-breeding and during pregnancy on breeding performance of ewe lambs.Crossref | GoogleScholarGoogle Scholar |
Pastorín A (2011) ‘Proteic supplementation effect on the productive outcome of weaned lambs grazing native pastures.’ Degree Thesis, Agronomy Faculty, University of the Republic (Uruguay), Montevideo, Uruguay.
Ponzoni, R, Azzarini, M (1968) Breeding Seaton and reproductive efficiency of Corriedale ewe lambs. Technical Bulletin. Experimental Station of Paysandú, Agronoky Faculty, University of the Republic, Uruguay 5(2) 79–110.
Russel AJF, Doney JM, Gunn RG (1969) Subjective assessment of body fat in live sheep. The Journal of Agricultural Science 72, 451–454.
| Subjective assessment of body fat in live sheep.Crossref | GoogleScholarGoogle Scholar |
SAS (2009) SAS software, Version 9.2. SAS Institute Inc. Cary, NC, USA.
Schinkel PG, Short BF (1961) The influence of nutritional level during pre-natal and early post-natal life on adult fleece and body characteristics. Australian Journal of Agricultural Research 12, 176–202.
| The influence of nutritional level during pre-natal and early post-natal life on adult fleece and body characteristics.Crossref | GoogleScholarGoogle Scholar |
Sepúlveda NG, Risopatrón J, Oberg J, Neumann A (2001) Pre and post partum supplementation of ewes: effect on the onset of puberty and reproductive activity of their female offspring. Files of Veterinary Medicine 33, 89–96.
STATISTICA 7.0. (2004) StatSoft, Inc. Tulsa, USA.
Stoerger MF, Hinds FG, Lewins JM, Wallace M, Szuik P (1976) Influence of dietary roughage level on reproductive rate in ewe lambs. Journal of Animal Science 43, 952–958.
Tilley JM, Terry RA (1963) A two stage technique for in vitro digestion of forage crops. Journal of the British Grassland Society 18, 104–111.
| A two stage technique for in vitro digestion of forage crops.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaF3sXks1Cmurk%3D&md5=20be0b9905067c6975937e23f650cf97CAS |
Viñoles C, González de Bulnes A, Martin GB, Sales F, Sale S (2010) Sheep and goats. In ‘Atlas of ruminant and camelid reproductive ultrasonography’. (Eds L DesCoteaux, J Colloton, G Gnemi). pp. 181–210 (Wiley-Blackwell: Ames, Iowa, USA)
Wallace JM, Aitken RP, Cheyne MA (1996) Nutrient partitioning and fetal growth in rapidly growing adolescent ewes. Journal of Reproduction and Fertility 107, 183–190.
| Nutrient partitioning and fetal growth in rapidly growing adolescent ewes.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK28XmsFGgsbk%3D&md5=0379151dd0ca1cce7a32ba3eb208a636CAS | 8882283PubMed |
Wallace JM, Aitken RP, Milne JS, Hay WW (2004) Nutritionally mediated placental growth restriction in the growing adolescent: consequences for the fetus. Biology of Reproduction 71, 1055–1062.
| Nutritionally mediated placental growth restriction in the growing adolescent: consequences for the fetus.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXnvVGqtrk%3D&md5=84bd9eb290fa6a6f79cb1c31ebdbf107CAS | 15201203PubMed |
