The Influence of Genotype on the Yield, Quality and Technological Properties of Milk of Cows Kept under Identical Conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F16%3A43910131" target="_blank" >RIV/62156489:43210/16:43910131 - isvavai.cz</a>

Result on the web

<a href="https://mnet.mendelu.cz/mendelnet2016/mnet_2016_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2016/mnet_2016_full.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The Influence of Genotype on the Yield, Quality and Technological Properties of Milk of Cows Kept under Identical Conditions

Original language description

The objective of this paper was to assess the influence of the genotype on yield, quality and technological properties of cow s milk. In this study we observed 18 dairy cows kept under indentical conditions of one dairy farm. There were three genotypes evaluated: Czech Fleckvieh (C), Holstein (H), and Ayrshire (A), 6 cows of each breed. In total 120 milk samples, taken weekly, were analysed in milklaboratory. Following charakteristics were analysed: milk yield per standardized lactation (305 days); fat, protein and dry matter content, non-fat solids content, density, active and titrable acidity, rennet coagulation time (RCT) and curd class quality. The results were also compared with the milk recording in CZ in years 2014/15. The highest yield was recorded for Holstein cows (8802 kg) followed by Czech Fleckvieh (7591 kg) and Ayshire breed (7097 kg). The best technological properties was shown by the milk of the Czech Fleckvieh (RCT 220 s, titratable acidity 7.29 SH). The technological properties of Holstein (RCT 248, titratable acidity 6.96 SH) and Ayrshire (RCT 246, titratable acidity 6.72 SH) milk were significantly (p<0.01) worse than those of Czech Fleckvieh. Concerning to the milk composition, the significantly (p<0.01) higher contents was recorded in the milk of the Czech Fleckvieh. In the Holstein milk , compared with Ayrshire, we recorded higher protein content (3.21%), but Ayrshire had higher fat content (4.23%). Findings suggest that Czech Fleckvieh cows at the farm yielded 451 kg of milk more, and Ayrshire cows 15 kg more, than the general average for mentioned breeds in Czech Republic (CZ). The Holstein cows yielded 744 kg of milk less than the general average for this breed in CZ. Fat content (at farm) was higher than general average in CZ for all three breeds. In the contrary, protein content was for all breeds lower.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

GG - Zootechnics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

MendelNet 2016: Proceedings of International PhD Students Conference

ISBN

978-80-7509-443-8

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

250-253

Publisher name

Mendelova univerzita v Brně

Place of publication

Brno

Event location

Brno

Event date

Nov 9, 2016

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000392968500044