Genetic parameters of a biological lactation model: Early lactation and secretion rate traits of dairy heifers

Animal

Volumn 3, Issue 8, 2009, Pages 1085-1093

  Pollott, G E ^a  

^a ROYAL VETERINARY COLLEGE   (United Kingdom)

Author keywords

Biological model; Genetic parameters; Heifers; Lactation curve

Indexed keywords

EID: 68349147762     PISSN: 17517311     EISSN: 1751732X     Source Type: Journal    
DOI: 10.1017/S1751731109004650     Document Type: Article

References (13)

1. Albarrán-Portillo B and Pollott GE 2008. A genetic analysis of the parameters derived using a biological model of lactation on commercial dairy cow records. Journal of Dairy Science 91, 3639-3648.
2. Dijkstra J, France J, Dhanoa MS, Maas JA, Hanigan MD, Rook AJ and Beever DE 1997. A model to describe growth patterns of the mammary gland during pregnancy and lactation. Journal of Dairy Science 80, 2340-2354.
3. Gilmour AR, Gogel BJ, Cullis BR, Welham SJ and Thompson R 2002. ASReml users guide release 1.0. VSN International Ltd., Hemel Hempstead, HP1 1ES, UK.
4. Olori VE, Brotherstone S, Hill WG and McGuirk BJ 1997. Effect of gestation stage on milk yield and composition in Holstein-Friesian cattle. Livestock Production Science 52, 167-176.
5. Olori VE, Brotherstone S, Hill WG and McGuirk BJ 1999a. Fit of standard models of the lactation curve to weekly records of milk production of cows in a single herd. Livestock Production Science 58, 55-63.
6. Olori VE, Hill WG, McGuirk BJ and Brotherstone S 1999b. Estimating variance components for test day milk records by restricted maximum likelihood with a random regression animal model. Livestock Production Science 61, 53-63.
7. Pollott GE 2000. A biological approach to lactation curve analysis for milk yield. Journal of Dairy Science 83, 2448-2458.
8. Pollott GE 2004. Deconstructing milk yield and composition during lactation using biologically-based lactation models. Journal of Dairy Science 87, 2375-2387.
9. Pollott GE and Gootwine E 2000. Appropriate mathematical models for describing the complete lactation of dairy sheep. Animal Science 71,197-207.
10. Pollott GE and Gootwine E 2001. A genetic analysis of complete lactation milk production in improved Awassi sheep. Livestock Production Science 71, 37-47.
11. SAS/STAT 1989. SAS/STAT user's guide, version 6, vol. 2, 4th edition, GLM- VARCOMP. SAS Institute Inc., Cary, NC, USA.
12. Strathie RJ and McGuirk BJ 1995. Developments with the MOET dairy breeding scheme. British Cattle Breeders Club 50, 9-15.
13. Vetharaniam IS, Davis R, Soboleva TK, Shorten PR and Wake GC 2003. Modeling the interaction of milking frequency and nutrition in mammary gland growth and lactation. Journal of Dairy Science 86, 1987-1996.