Genetic Trends of Milk Production in Select Herds of the Slovak Spotted Breed

Jozef Bujko, Anna Trakovická, Jozef Pjontek, Július Žitný, Cyril Hrnčár

Abstract


The aim of this study was to perform analysis genetic trends of traits of milk production in select herds of the Slovak spotted breed. The genetic gain for milk, fat and proteins production in kg was calculated by different methods. Genetic trends were between 68.31 - 109.11 kg for milk production, 2.98 - 5.44 kg for fat production and 2.26 - 3.46 kg for proteins production. Increase of inbreeding was estimate 1.520 - 1.860 - 3.190 % behind generation. Prediction genetic trends by „Truncation“ selection was 12.2 to 111.6 kg for milk at fathers of daughter and 29.2 to 96.1 kg for milk at mothers of daughter.


Keywords


Slovak spotted breed; dairy cows; genetic trends; traits of milk production

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).

LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

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