Carrying the FecB (Booroola) mutation is associated with lower birth weight and slower post-weaning growth rate for lambs, as well as a lighter mature bodyweight for ewes
E. Gootwine A B , A. Rozov A , A. Bor A and S. Reicher AA Institute of Animal Science, Agricultural Research Organization, The Volcani Center, PO Box 6, Bet Dagan 50250, Israel.
B Corresponding author. Email: gootwine@agri.gov.il
Reproduction, Fertility and Development 18(4) 433-437 https://doi.org/10.1071/RD05134
Submitted: 7 October 2005 Accepted: 15 January 2006 Published: 22 March 2006
Abstract
The present study was conducted in an Assaf flock in which the FecB (Booroola) mutation was segregated to determine whether the FecB mutation affects birthweight and the pre- and post-weaning growth rate of ewe lambs, as well as the mature bodyweight of ewes. Significant differences (P = 0.01) in birthweight (mean ± s.e.m.) were found between BB ewe lambs (4.03 ± 0.08 kg) and B+ and ++ ewe lambs (4.16 ± 0.04 and 4.32 ± 0.07 kg, respectively), which themselves did not differ significantly (P > 0.05). An FecB-associated maternal effect on the birthweight of ewe lambs was also detected, with the birthweight of lambs born to BB mothers (3.93 ± 0.08 kg) being significantly (P < 0.0001) different from the birthweight of lambs born to B+ and ++ mothers (4.26 ± 0.04 and 4.33 ± 0.07 kg, respectively), which did not differ significantly. The genotypes of the lambs did not affect their preweaning growth rate. However, the post-weaning growth rate of ewe BB lambs (274 ± 5 g day−1) was significantly (P = 0.05) different from the similar (P > 0.05) post-weaning growth rates of B+ and ++ lambs (284 ± 3 and 290 ± 4 g day−1, respectively). The genotype at the FecB locus also affected the mature bodyweight of ewes, with that of BB ewes (67.3 ± 1.4 kg) being significantly (P < 0.001) different from the similar mature bodyweight of B+ and ++ ewes (70.8 ± 1.1 and 70.1 ± 1.7 kg, respectively).
Extra keyword: Assaf.
Acknowledgments
The authors express their thanks to Invermay Agriculture Research Centre, New Zealand, for supplying the Booroola rams. This research was supported by Research Grant Award No. US-3199-01CR from BARD, The United States–Israel Binational Agricultural Research and Development Fund.
Abella, D. F. , Cognie, Y. , Thimonier, J. , Seck, M. , and Blanc, M. R. (2005). Effects of the FecB gene on birth weight, postnatal growth rate and puberty in Booroola xx Mérinos d’Arles ewe lambs. Anim. Res. 54, 283–288.
| Crossref | GoogleScholarGoogle Scholar |
Demirhan, O. , Türkmen, S. , Schwabe, G. C. , Soyupak, S. , Akgül, E. , Tatemir, D. , Karahan, D. , Mundlos, S. , and Lehmann, K. (2005). A homozygous BMPR1B mutation causes a new subtype of acromesomelic chondrodysplasia with genital anomalies. J. Med. Genet. 42, 314–317.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Hinch, G. N. , Crosbie, S. F. , Kelly, R. W. , Owens, J. L. , and Davis, G. H. (1985). Influence of birth weight and litter size on lamb survival in high fecundity Booroola–Merino crossbred flocks. NZ J. Agric. Res. 28, 31–38.
Mulsant, P. , Lecerf, F. , Fabre, S. , Schibler, L. , and Monget, P. , et al. (2001). Mutation in bone morphogenetic protein receptor-IB is associated with increased ovulation rate in Booroola Merino ewes. Proc. Natl Acad. Sci. USA 98, 5104–5109.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Pollott, G. E. , and Gootwine, E. (2004). Reproductive performance and milk production of Assaf sheep in an intensive management system. J. Dairy Sci. 87, 3690–3703.
| PubMed |
Schulze, K. S. , Waldron, D. F. , Willingham, T. D. , Shelby, D. R. , Engdahl, G. R. , Gootwine, E. , Yoshefi, S. , Montgomery, G. W. , Tate, M. L. , and Lord, E. A. (2003). Effects of the FecB gene in half-sib families of Rambouillet-cross ewes. Sheep Goat Res. J. 18, 83–88.
Wilson, T. , Wu, X. Y. , Juengel, J. L. , Ross, I. K. , and Lumsden, J. M. , et al. (2001). Highly prolific Booroola sheep have a mutation in the intracellular kinase domain of bone morphogenetic protein IB receptor (ALK-6) that is expressed in both oocytes and granulosa cells. Biol. Reprod. 64, 1225–1235.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Yi, S. E. , Daluiski, A. , Pederson, R. , Rosen, V. , and Lyons, K. M. (2000). The type I BMP receptor BMPRIB is required for chondrogenesis in the mouse limb. Development 127, 621–630.
| PubMed |
Yi, S. E. , LaPolt, P. S. , Yoon, B. S. , Chen, J. Y.-C. , Lu, J. K. H. , and Lyons, K. M. (2001). The type I BMP receptor BmprIB is essential for female reproductive function. Proc. Natl Acad. Sci. USA 98, 7994–7999.
| Crossref | GoogleScholarGoogle Scholar | PubMed |