ORIGINAL PAPER
Seasonality in milk performance and reproduction of dairy cows in low-input farms depending on feeding system
J. Frelich 1  
,   M. Šlachta 1,   J. Szarek 2,   A. Węglarz 2,   P. Zapletal 2
 
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1
University of South Bohemia, Faculty of Agriculture, Studentská 13, CZ - 370 05, České Budĕjovice, Czech Republic
2
University of Agriculture in Kraków, Department of Cattle Breeding, Al. Mickiewicza 24/26, 30-059 Kraków, Poland
CORRESPONDING AUTHOR
J. Frelich   

University of South Bohemia, Faculty of Agriculture, Studentská 13, CZ - 370 05, České Budĕjovice, Czech Republic
Publication date: 2009-03-20
 
J. Anim. Feed Sci. 2009;18(2):197–208
 
KEYWORDS
ABSTRACT
Seasonality in milk performance and reproduction was analysed in low-input mountain farms in the Czech Republic. Two different feeding regimes were distinguished: seasonal pasture and all-year silage feeding in confinement. Seventeen pastured herds and sixteen confined herds of Czech Pied and Holstein breeds (total 12 158 cows) were included in the seven-year study. Seasonal variation of milk, fat and protein yields per lactation according to the month of calving was found in both groups of herds. The highest yields were achieved by autumn-calved, and the lowest yields, by summercalved cows (difference of 542 kg and 474 kg of milk on average in pastured and in confined herds, respectively). Higher individual daily yields (up to 2.9 kg on average) were recorded in the period between May and July than in the rest of a year. No effect of month of calving on days-to-firstservice and on days-open period was identified.
 
CITATIONS (6):
1.
Impact of seasonal grazing on udder health of cows
J. Frelich, Martin Šlachta
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
 
2.
Impact of combined management on the newly established pasture sward
Pavlína Hakrová, K. Novotná, Z. Sýkorová, M. Šlachta, J. Frelich
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
 
3.
Performance of Tharparkar calves following a suckling or non-suckling rearing system
Vipin Kumar Upadhyay, A. K. S. Tomar, B. H. M. Patel, S. Sahu, P. K. Bharti, D. M. Golher
Veterinary World
 
4.
Analysis of longterm trends in the performance of dairy cows on low-input mountain farms
Jan Frelich, Martin Šlachta, Milan Kobes
Journal of Agrobiology
 
5.
Reasons for the culling of dairy cows on low-input mountain farms
Jan Frelich, Martin Šlachta, Milan Kobes
Journal of Agrobiology
 
6.
Profitability of dairy farming in relation to the type of feeding system
Jan Frelich, Martin Šlachta, František Střeleček, Jana Lososová
Journal of Agrobiology
 
ISSN:1230-1388