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|Title:||Genesis, design and methods of the Beef CRC Maternal Productivity Project|
|Citation:||Animal Production Science, 2018; 58(1):20-32|
|W.S. Pitchford, J.M. Accioly, R.G. Banks, A.L. Barnes, S.A. Barwick, K.J. Copping, M.P.B. Deland, K.A. Donoghue, N. Edwards, M.L. Hebart, R.M. Herd, F.M. Jones, M. Laurence, S.J. Lee, W.A. McKiernan, P.F. Parnell, E.J. Speijers, G.D. Tudor and J.F. Graham|
|Abstract:||Australian seedstock cattle breeders have expressed concerns that while there has been genetic improvement in feedlot and abattoir performance of cows, it could have led to a decline in maternal productivity, especially under variable nutritional conditions. This paper describes a substantial project with two components designed to address these issues. The first sub-project was to monitor bodyweight and composition of 7760 young Angus and Hereford cows as they experience variable physiological states (pregnancy and lactation) and seasons. This was conducted on large numbers in seedstock herds. The second sub-project was to monitor more regularly bodyweight, body composition, and calf rearing performance of 500 Angus cows that are genetically divergent for either fat or residual feed intake at two research centres. This also included two levels of nutrition and recording of weekly feed intake of small groups of cows for at least three parities to allow reporting of genotype × nutrition effects on maternal productivity and efficiency. Results from the project are reported in a series of papers with each one having a defined focus.|
|Rights:||Journal compilation © CSIRO 2018|
|Appears in Collections:||Animal and Veterinary Sciences publications|
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