Innovation of prediction equations for milk composition estimation in milk recording at alternative sampling and half a day milking interval

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F12%3A00193186" target="_blank" >RIV/62156489:43210/12:00193186 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/26788462:_____/12:#0000597 RIV/26722861:_____/12:JPREDI12 RIV/49608851:_____/12:#0000543

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Innovation of prediction equations for milk composition estimation in milk recording at alternative sampling and half a day milking interval

Popis výsledku v původním jazyce

At dairying cost reduction and effort about maintenance of milk recording (MR) range the MR cost decrease is also important. Aim was to revise the older prediction equations for alternative reduced milk sampling (morning -- M or evening -- E) for assurance of MR reliable results at twice milking a day(TMD) with balanced interval 12/12. Individual milk samples (n = 619 animals) were obtained during TMD (M, E and REF; n = 1 857 samples). Fat (F), protein (P), lactose (L) and somatic cell count (SCC)were analysed. Czech Fleckvieh and Holstein breeds were included. The reference values (REF) of day milking were obtained in regular MR (A4P). M and E milking results were related to the REF. Older prediction equations with lower validity because of time and breeding were revised: a) for F from M on REF y = 0.6932x + 1.381, where r = 0.752 and P < 0.001; b) for P from M on REF y = 0.9432x + 0.2274,where r = 0.949 and P < 0.001; c) for L from E on REF y = 0.8145x + 0.9095, where r = 0.87 and P

Název v anglickém jazyce

Innovation of prediction equations for milk composition estimation in milk recording at alternative sampling and half a day milking interval

Popis výsledku anglicky

At dairying cost reduction and effort about maintenance of milk recording (MR) range the MR cost decrease is also important. Aim was to revise the older prediction equations for alternative reduced milk sampling (morning -- M or evening -- E) for assurance of MR reliable results at twice milking a day(TMD) with balanced interval 12/12. Individual milk samples (n = 619 animals) were obtained during TMD (M, E and REF; n = 1 857 samples). Fat (F), protein (P), lactose (L) and somatic cell count (SCC)were analysed. Czech Fleckvieh and Holstein breeds were included. The reference values (REF) of day milking were obtained in regular MR (A4P). M and E milking results were related to the REF. Older prediction equations with lower validity because of time and breeding were revised: a) for F from M on REF y = 0.6932x + 1.381, where r = 0.752 and P < 0.001; b) for P from M on REF y = 0.9432x + 0.2274,where r = 0.949 and P < 0.001; c) for L from E on REF y = 0.8145x + 0.9095, where r = 0.87 and P

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

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Projekt

<a href="/cs/project/ME09081" target="_blank" >ME09081: Výzkumná a technologická podpora chovu a plemenitby skotu s kombinovanou užitkovostí v provincii Anhui</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis

ISSN

1211-8516

e-ISSN

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Svazek periodika

60

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

103-110

Kód UT WoS článku

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EID výsledku v databázi Scopus

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