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Relationship between dairy cow genetic merit and profit on commercial spring calving dairy farms

  • G. Ramsbottom (a1), A. R. Cromie (a2), B. Horan (a3) and D. P. Berry (a3)
Abstract

Because not all animal factors influencing profitability can be included in total merit breeding indices for profitability, the association between animal total merit index and true profitability, taking cognisance of all factors associated with costs and revenues, is generally not known. One method to estimate such associations is at the herd level, associating herd average genetic merit with herd profitability. The objective of this study was to primarily relate herd average genetic merit for a range of traits, including the Irish total merit index, with indicators of performance, including profitability, using correlation and multiple regression analyses. Physical, genetic and financial performance data from 1131 Irish seasonal calving pasture-based dairy farms were available following edits; data on some herds were available for more than 1 year of the 3-year study period (2007 to 2009). Herd average economic breeding index (EBI) was associated with reduced herd average phenotypic milk yield but with greater milk composition, resulting in higher milk prices. Moderate positive correlations (0.26 to 0.61) existed between genetic merit for an individual trait and average herd performance for that trait (e.g. genetic merit for milk yield and average per cow milk yield). Following adjustment for year, stocking rate, herd size and quantity of purchased feed in the multiple regression analysis, average herd EBI was positively and linearly associated with net margin per cow and per litre as well as gross revenue output per cow and per litre. The change in net margin per cow per unit change in the total merit index was €1.94 (s.e. = 0.42), which was not different from the expectation of €2. This study, based on a large data set of commercial herds with accurate information on profitability and genetic merit, confirms that, after accounting for confounding factors, the change in herd profitability per unit change in herd genetic merit for the total merit index is within expectations.

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Copyright
Corresponding author
E-mail: george.ramsbottom@teagasc.ie
References
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Ahlborn G, Bryant AM 1992. Production, economic performance and optimum stocking rates of Holstein-Friesian and Jersey cows. Proceedings of the New Zealand Society of Animal Production 52, 79.
Alvarez A, Arias C 2004. Technical efficiency and farm size: a conditional analysis. Agricultural Economics 30, 241250.
Bargo F, Muller LD, Delahoy JE, Cassidy TW 2002. Milk response to concentrate supplementation of high producing dairy cows grazing at two pasture allowances. Journal of Dairy Science 85, 17771792.
Baker AMC, Leaver JD 1986. Effect of stocking rate in early season on dairy cow performance and sward characteristics. Grass and Forage Science 41, 333340.
Baudracco J, Lopez-Villalobos N, Holmes CW, Macdonald KA 2010. Effects of stocking rate, supplementation, genotype and their interactions on grazing dairy systems: a review. New Zealand Journal of Agricultural Research 53, 109133.
Berry DP, Shalloo L, Cromie AR, Veerkamp RF, Dillon P, Amer PR, Kearney JF, Evans RD, Wickham B 2007. The economic breeding index: a generation on. Technical report to the Irish Cattle Breeding Federation. Retrieved June 19, 2009, from http://www.icbf.com/publications/files/economic_breeding_index.pdf.
Berry DP, Kearney JF, Twomey K, Cromie AR, Evans RD 2010. Revision of the fertility and health genetic evaluations for Irish Holstein-Friesian dairy cattle. Proceedings of the 9th World Congress on Genetics Applied to Livestock Production, August 1–6, 2010, Leipzig, Germany.
Central Statistics Office (CSO) 2010. Manufacturing milk prices – various years, Retrieved January 29, 2011, from http://www.cso.ie
Coleman J, Pierce KM, Berry DP, Brennan A, Horan B 2010. Increasing milk solids production across lactation through genetic selection and intensive pasture-based feed system. Journal of Dairy Science 93, 43024317.
Dillon P, Crosse S, Stakelum G, Flynn F 1995. The effect of calving date and stocking rate on the performance of spring-calving dairy cows. Grass and Forage Science 50, 286299.
Dillon P, Shalloo L, Wallace M, Butler AM 2005a. Integrated modeling of dairy production systems under technical, environmental and economic scenarios Final report, project no. 5062. Teagasc, Oak Park, Carlow, Ireland.
Dillon P, Roche JR, Shalloo L, Horan B 2005b. Optimising financial return from grazing in temperate pastures. In Utilization of grazed grass in temporal animal systems (ed. JJ Murphy), pp. 131147. Wageningen Academic Publications, Wageningen, the Netherlands.
Dillon P, Hennessy T, Shalloo L, Thorne F, Horan B 2008. Future outlook for the Irish dairy industry: a study of international competitiveness, influence of international trade reform and requirement for change. International Journal of Dairy Technology 61, 1629.
Holmes CW, Brookes IM, Garrick DJ, Mackenzie DDS, Parkinson TJ, Wilson GF 2002. Milk production from pasture: principles and practices. Massey University, Palmerston North, New Zealand.
Horan B, Faverdin P, Delaby L, Rath M, Dillon P 2006. The effect of strain of Holstein Friesian dairy cow and pasture-based system on grass intake and milk production. Animal Science 82, 434444.
Horan B, Shalloo L 2007. Profitable dairying in an increased EU Milk Quota Scenario. In Exploiting the freedom to milk, Proceedings of the Teagasc National Dairy Conference, Teagasc Oak Park, Carlow, Ireland.
Irish Cattle Breeding Federation (ICBF) 2009. Cattle breeding statistics report for 2009. Irish Cattle Breeding Federation, Bandon, Cork.
Jago JG, Berry DP 2011. Associations between herd size, rate of expansion and production, breeding policy and reproduction in spring calving dairy herds. Animal 5, 16261633.
Kennedy J, Dillon P, Faverdin P, Delaby L, Buckley F, Rath M 2002. The influence of cow genetic merit for milk production on response to level of concentrate supplementation in a grass-based system. Animal Science 75, 433445.
Macdonald KA, Penno JW, Lancaster JAS, Roche JR 2008. Effect of stocking rate on pasture production, milk production and reproduction of dairy cows in pasture-based systems. Journal of Dairy Science 91, 21512163.
Macdonald KA, Beca D, Penno JW, Lancaster JAS, Roche JR 2011. Short Communication: effect of stocking rate on the economics of pasture-based dairy farms. Journal of Dairy Science 94, 25812586.
McCall DG, Clark DA 1999. Optimized dairy grazing systems in the northeast United States and New Zealand. II. System Analysis Journal of Dairy Science 88, 18081816.
McCarthy S, Horan B, Dillon P, O'Connor P, Rath M, Shalloo L 2007. Economic comparison of divergent strains of Holstein-Friesian cows in various pasture-based production systems. Journal of Dairy Science 90, 14931505.
National Farm Survey 2006. National Farm Survey Data, Teagasc, Oak Park, Carlow, Ireland.
National Farm Survey 2007. National Farm Survey Data, Teagasc, Oak Park, Carlow, Ireland.
National Farm Survey 2008. National Farm Survey Data, Teagasc, Oak Park, Carlow, Ireland.
National Farm Survey 2009. National Farm Survey Data, Teagasc, Oak Park, Carlow, Ireland.
Oleggini GH, Ely LO, Smith JW 2001. Effect of region and herd size on dairy herd performance parameters. Journal of Dairy Science 84, 10441050.
Penno JW 1999. Stocking rate for optimum profit. South Island Dairy Event 1, 2543.
Roibas D, Alvarez A 2010. Impact of genetic progress on the profits of dairy farmers. Journal of Dairy Science 93, 43664373.
Romain R, Lambert R 1994. Situation Compétitive de la Filière Laitière Canadienne. In Supply Management in Transition Towards the 21st Century Proceedings of Conference, McGill University, Ste. Anne de Bellevue, Quebec, Canada.
SAS Institute 2009. SAS user's guide, version 9.1.0 edition. SAS Institute, Inc., Cary, NC, USA.
Shalloo L, Dillon P, Rath M, Wallace M 2004. Description and validation of the Moorepark Dairy Systems model. Journal of Dairy Science 87, 19451958.
Smith JW, Ely O, Chapa AM 2000. Effect of region, herd size and milk production on reasons cows leave the herd. Journal of Dairy Science 83, 29802987.
Stakelum G, Dillon P 2007. The effect of grazing pressure on rotationally grazed pasture in spring/early summer on the performance of dairy cows in the summer/autumn period. Irish Journal of Agricultural and Food Research 46, 2946.
Steine G, Kristofersson D, Guttormsen AG 2008. Economic evaluation of the breeding goal for Norwegian Red dairy cattle. Journal of Dairy Science 91, 418426.
Weersink A, Howard WH, Dekkers JCM, Lohuis M 1991. Sire selection decisions and farm profitability relationships for Ontario dairy farmers. Journal of Dairy Science 74, 39944001.
Williams CB, Oltenacu PA, Bratton CA, Milligan RA 2008. Effect of business and dairy herd management practices on the variable cost of producing milk. Journal of Dairy Science 70, 17011709.
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