Chosen biotic factors influencing raw cow milk freezing point
Result description
The milk freezing point depression (FPD) is important physical property for added water estimation. FPD can be influenced by other biotic factors. 11 540 ? 72 607 bulk raw cow milk samples were investigated. The highest FPD was in Spring (?0.52097 ? 0.004877 °C), lowest in Autumn (?0.52516 ? 0.005725 °C; P < 0.001). Correlation between FPD and lactose was 0.35 (P < 0.001). 12 and 5.4% of FPD variability is explainable by lactose and casein variability. Relationship between FPD and urea (U) was 0.26 (P <0.001) in March. The worst FPD was at presupposed nitrogen matter (NM) and energy (E) insufficiency (?0.51855 ? 0.007288 °C). The best FPD was in presupposed NM and E surplus in feeding (?0.52536 ? 0.004785 °C; P < 0.001). The FPD was worse in suspicionon E deficiency (on the basis of fat/protein ratio) as compared to presumption for balanced E nourishment of dairy herds (?0.52105 ? 0.006436 > ?0.52244 ? 0.005367 °C; P < 0.001). Results can improve the estimation of right FPD limit.
Keywords
dairy cowbulk milk samplefreezing point depressionfatproteincaseinenergy metabolism estimationlactosesolids non fatsomatic cell counturearee fatty acids
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/26722861:_____/11:JROBMR11 RIV/49608851:_____/11:#0000465
Result on the web
http://www.mendelu.cz/dok_server/slozka.pl?id=51329;download=82053
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Chosen biotic factors influencing raw cow milk freezing point
Original language description
The milk freezing point depression (FPD) is important physical property for added water estimation. FPD can be influenced by other biotic factors. 11 540 ? 72 607 bulk raw cow milk samples were investigated. The highest FPD was in Spring (?0.52097 ? 0.004877 °C), lowest in Autumn (?0.52516 ? 0.005725 °C; P < 0.001). Correlation between FPD and lactose was 0.35 (P < 0.001). 12 and 5.4% of FPD variability is explainable by lactose and casein variability. Relationship between FPD and urea (U) was 0.26 (P <0.001) in March. The worst FPD was at presupposed nitrogen matter (NM) and energy (E) insufficiency (?0.51855 ? 0.007288 °C). The best FPD was in presupposed NM and E surplus in feeding (?0.52536 ? 0.004785 °C; P < 0.001). The FPD was worse in suspicionon E deficiency (on the basis of fat/protein ratio) as compared to presumption for balanced E nourishment of dairy herds (?0.52105 ? 0.006436 > ?0.52244 ? 0.005367 °C; P < 0.001). Results can improve the estimation of right FPD limit.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GG - Zootechnics
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunesis
ISSN
1211-8516
e-ISSN
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Volume of the periodical
LIX
Issue of the periodical within the volume
5
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
18
Pages from-to
65-82
UT code for WoS article
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EID of the result in the Scopus database
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Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
GG - Zootechnics
Year of implementation
2011