Zobrazeno 1 - 10
of 94
pro vyhledávání: '"P. Strapák"'
Publikováno v:
Archives Animal Breeding, Vol 59, Iss 3, Pp 329-335 (2016)
The objective of this study was to estimate the breeding values (BVs) of lactation persistency, the test day of milk yield, the somatic cell score, reproductive traits (calving interval, days open), longevity in Slovak Holstein dairy cattle. BVs were
Externí odkaz:
https://doaj.org/article/dda2894247f044938b944e1e4be5226e
Publikováno v:
Czech Journal of Animal Science, Vol 59, Iss 2, Pp 54-60 (2014)
Genetic evaluation of length of functional productive life was carried out using a Weibull proportional hazard sire-maternal grandsire model. The database included 405 624 Holstein cows with 19.24% censoring. The analyzed effects were parity × stage
Externí odkaz:
https://doaj.org/article/9a39392c034443ca90fb9118445e85f8
Autor:
P. Polák, T. Sakowski, E.N. Blanco Roa, J. Huba, E. Krupa, J. Tomka, D. Peškovičová, M. Oravcová, P. Strapák
Publikováno v:
Czech Journal of Animal Science, Vol 52, Iss 12, Pp 430-436 (2007)
The aims of the paper were to construct models for the estimation of carcass quality by means of computer image analysis and to verify computer photometry as an in vivo method of carcass quality prediction. Results of photometric measurements and car
Externí odkaz:
https://doaj.org/article/e2692a7c94184c3f8965a34f8533a46e
Publikováno v:
Czech Journal of Animal Science, Vol 50, Iss 1, Pp 1-6 (2005)
The correlations between longevity, functional longevity, stayability and selected milk, reproductive and type traits were estimated; it was done on the basis of estimated breeding values for longevity, functional longevity, dairy traits, reproductiv
Externí odkaz:
https://doaj.org/article/1bc0b426b69c478f80aa52afbff748d9
Akademický článek
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Publikováno v:
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Vol 69, Iss 3, Pp 429-442 (2021)
Problems with claw disorders in dairy cattle herds are very typical and are among the most significant endemic cattle diseases. It is good to realize in what condition we keep the cattle - unsuitable floors and bed boxes, greasy microclimate, frequen
Externí odkaz:
https://doaj.org/article/94d67dcd39c44d2dbc52472025e5f49d
Publikováno v:
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Vol 67, Iss 5, Pp 1227-1234 (2019)
National genetic evaluation of lengh of productive life in Slovakia was carry out from the year 2014 till 2018, three times per year (March, June and October). The survival analysis was performed using Weibull sire model. The heritability obtained fr
Externí odkaz:
https://doaj.org/article/9578ae8af05748458514df212b3533f2
Publikováno v:
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Vol 67, Iss 6, Pp 1419-1426 (2019)
The aim of study was to analyse the reproduction and factors affecting on reproduction traits of dairy cows in population of Slovak Spotted cattle from 2007 to 2016 the results for 37,274 dairy cows: days to first service (DFS), days open (DO), numbe
Externí odkaz:
https://doaj.org/article/66b4ac9a8b4a416a889014bcfc5bbaf6
Publikováno v:
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Vol 66, Iss 2, Pp 619-625 (2018)
The oestrus is defined as a complex of physiological signs and changes of behavior occurring immediately before the ovulation. It is the period of sexual receptivity of the cow and this period characterized by, typical cow behaviour which is standing
Externí odkaz:
https://doaj.org/article/ab3da68b2507464b81ab45511f2acfd7
Akademický článek
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