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dc.contributor.author
Lazzarini, Maria Belen
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dc.contributor.author
Lopez Villalobos, Nicolas
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dc.contributor.author
Lyons, N.
dc.contributor.author
Hendrikse, L.
dc.contributor.author
Baudracco, Javier
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dc.date.available
2018-09-07T13:58:57Z
dc.date.issued
2018-05
dc.identifier.citation
Lazzarini, Maria Belen; Lopez Villalobos, Nicolas; Lyons, N.; Hendrikse, L.; Baudracco, Javier; Productive, economic and risk assessment of grazing dairy systems with supplemented cows milked once a day; Cambridge University Press; Animal; 12; 5; 5-2018; 1077-1083
dc.identifier.issn
1751-7311
dc.identifier.uri
http://hdl.handle.net/11336/58684
dc.description.abstract
Milking cows once a day (OAD) is a herd management practice that may help to reduce working effort and labour demand in dairy farms. However, a decrease in milk yield per cow occurs in OAD systems compared with twice a day (TAD) systems and this may affect profitability of dairy systems. The objective of this study was to assess productive and economic impact and risk of reducing milking frequency from TAD to OAD for grazing dairy systems, using a whole-farm model. Five scenarios were evaluated by deterministic and stochastic simulations: one scenario under TAD milking (TADAR) and four scenarios under OAD milking. The OAD scenarios assumed that milk yield per cow decreased by 30% (OAD30), 24% (OAD24), 19% (OAD19) and 10% (OAD10), compared with TADAR scenario, based on experimental and commercial farms data. Stocking rate (SR) was increased in all OAD scenarios compared to TADAR and two levels of reduction in labour cost were tested, namely 15% and 30%. Milk and concentrate feeds prices, and pasture and crop yields, were allowed to behave stochastically to account for market and climate variations, respectively, to perform risk analyses. Scenario OAD10 showed similar milk yield per ha compared with TADAR, as the increased SR compensated for the reduction in milk yield per cow. For scenarios OAD30, OAD24 and OAD19 the greater number of cows per ha partially compensated for the reduction of milk yield per cow and milk yield per ha decreased 21%, 15% and 10%, respectively, compared with TADAR. Farm operating profit per ha per year also decreased in all OAD scenarios compared with TADAR, and were US$684, US$161, US$ 303, US$424 and US$598 for TADAR, OAD30, OAD24, OAD19, OAD10, respectively, when labour cost was reduced 15% in OAD scenarios. When labour cost was reduced 30% in OAD scenarios, only OAD10 showed higher profit (US$706) than TADAR. Stochastic simulations showed that exposure to risk would be higher in OAD scenarios compared with TADAR. Results showed that OAD milking systems might be an attractive alternative for farmers who can either afford a reduction in profit to gain better and more flexible working conditions or can minimise milk yield loss and greatly reduce labour cost.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Cow
dc.subject
Dairy System
dc.subject
Once a Day Milking
dc.subject
Profitability
dc.subject
Risk
dc.subject.classification
Otras Producción Animal y Lechería
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dc.subject.classification
Producción Animal y Lechería
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Productive, economic and risk assessment of grazing dairy systems with supplemented cows milked once a day
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-06T18:45:18Z
dc.journal.volume
12
dc.journal.number
5
dc.journal.pagination
1077-1083
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Lazzarini, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Lopez Villalobos, Nicolas. Massey University; Nueva Zelanda
dc.description.fil
Fil: Lyons, N.. Elizabeth Macarthur Agricultural Institute; Australia
dc.description.fil
Fil: Hendrikse, L.. Masterton 5887; Australia
dc.description.fil
Fil: Baudracco, Javier. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.journal.title
Animal
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1017/S1751731117002853
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