The Impact of Calving Season, Dams' Parity on Milk Yield and Gestation Length of Dairy Cows
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F21%3A43919236" target="_blank" >RIV/62156489:43210/21:43919236 - isvavai.cz</a>
Result on the web
<a href="http://www.acta.fapz.uniag.sk/journal/index.php/on_line/article/view/852" target="_blank" >http://www.acta.fapz.uniag.sk/journal/index.php/on_line/article/view/852</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.15414/AFZ.2021.24.MI-PRAP.41-44" target="_blank" >10.15414/AFZ.2021.24.MI-PRAP.41-44</a>
Alternative languages
Result language
angličtina
Original language name
The Impact of Calving Season, Dams' Parity on Milk Yield and Gestation Length of Dairy Cows
Original language description
The purpose of the study was to asses the effect of calving season and dams' parity on milk yield and gestation length of dairy cows. We examined 93 animals of Slovak spotted breed from the farm located in western Slovakia (Lower Váh region), in years 2014-2017. The herds' average 305-d milk yield was 8,133 +-1,380 kg. The calving season was divided into four categories: spring (March to May), summer (June to August), autumn (September to November) and winter (December to February). The factor of dams parity was divided into 4 groups: 1st parity cows, 2nd-3rd parity cows, 4th and higher parity cows. Calving season affected significantly milk yield of dairy cows (P <0.01). The highest 305-d milk production was oberved in winter calvings (8,942 +-218 kg) and the lowest in spring calvings (7,377 +-287 kg). The gestation length was not signifficantly altered by calving season (P >0.32). Dams' parity was not significantly affected by 305-d milk yield (P >0.22). Nevertheless, the animals on the 4th and higher lactation were numerically more productive (8,481 +-259 kg) compared to the dairy cows on their 1st, 2nd-3rd lactation (8,123 +-264 kg; 7,884 +-223 kg; resp.). The dams' parity significantly affected gestation length (P <0.02), with the shortest gestation length in 1st parity dams (278 +-2 days) and the longest gestation in 2nd-3rd parity dams (284 +-1 days).To sum up, our results suggest significant role of calving season in relation to milk yield and significant effect of dams' parity on gestation length.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
40201 - Animal and dairy science; (Animal biotechnology to be 4.4)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Fytotechnica et Zootechnica
ISSN
1335-258X
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
Monothematic Issue
Country of publishing house
SK - SLOVAKIA
Number of pages
4
Pages from-to
41-44
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85102335763