The effect of age at first calving on milk production of czech fleckvieh cows
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F14%3A00218433" target="_blank" >RIV/62156489:43210/14:00218433 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
čeština
Original language name
The effect of age at first calving on milk production of czech fleckvieh cows
Original language description
In this thesis we dealt with effect of age at first calving on milk production of Czech Fleckvieh at first and second lactation. We analyzed set of about 5 000 pieces of animals from our prominent breeding of Czech Fleckvieh. We evaluate dairy cows, which calve from 26th to 36th month of their life. Next criterion of choice was the length of both first and second lactation, which should be at least 280 days. These criteria fulfil overall 3 155 dairy cows. Their milk yield per lactation was converted tomilk yield per day. Regarding the 1st lactation the highest milk yield per day was set in group of dairy cows, which calved in 36th month of age (23.57 kg of milk per day), and the lowest dairy milk yield in group calved in 32nd month of age (21.51 kg ofmilk per day). If we focus on the milk yield in the 2nd lactation, we will find out, that the highest milk yield reached dairy cows, which calved in 27th month (25.87 kg of milk per day) and the lowest milk yield reached dairy cows, whic
Czech name
The effect of age at first calving on milk production of czech fleckvieh cows
Czech description
In this thesis we dealt with effect of age at first calving on milk production of Czech Fleckvieh at first and second lactation. We analyzed set of about 5 000 pieces of animals from our prominent breeding of Czech Fleckvieh. We evaluate dairy cows, which calve from 26th to 36th month of their life. Next criterion of choice was the length of both first and second lactation, which should be at least 280 days. These criteria fulfil overall 3 155 dairy cows. Their milk yield per lactation was converted tomilk yield per day. Regarding the 1st lactation the highest milk yield per day was set in group of dairy cows, which calved in 36th month of age (23.57 kg of milk per day), and the lowest dairy milk yield in group calved in 32nd month of age (21.51 kg ofmilk per day). If we focus on the milk yield in the 2nd lactation, we will find out, that the highest milk yield reached dairy cows, which calved in 27th month (25.87 kg of milk per day) and the lowest milk yield reached dairy cows, whic
Classification
Type
D - Article in proceedings
CEP classification
GG - Zootechnics
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Animal Physiology 2014
ISBN
978-80-7375-971-1
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
18-22
Publisher name
Mendel University in Brno
Place of publication
Brno
Event location
Prušánky
Event date
May 21, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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