Effect of pre-calving body condition score and previous lactation on BCS change, blood metabolites, oxidative stress and milk production in Holstein dairy cows

Autor:	Negin Jamali Emam Gheise, Ahmad Riasi, Ahmad Zare Shahneh, Pietro Celi, Seyed Mehdi Ghoreishi
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Body condition score metabolic status oxidative status lactation potential dairy cow Animal culture SF1-1100
Zdroj:	Italian Journal of Animal Science, Vol 16, Iss 3, Pp 474-483 (2017)
Druh dokumentu:	article
ISSN:	1828-051X 1828051X
DOI:	10.1080/1828051X.2017.1290507
Popis:	The aim of study was to determine the effect of pre-calving body condition score (BCS) and previous milk yield on BCS change, blood metabolites, oxidative stress and milk production in Holstein cows. At 3 wk before expected calving, 100 multiparous cows were grouped according to their BCS and then classified based the previous 305 milk yield. The four experimental groups (25 cows each) were medium BCS and moderate milk yield (MM), medium BCS and high milk yield (MH), high BCS and moderate milk yield (HM), and high BCS and high milk yield (HH). The cows’ BCS was recorded at −21, 0, 21, 50 and 80 d related to parturition time. Daily milk production of cows was recorded after parturition. Blood samples were taken at d −21, −7, +1, +7 and +21 postpartum. The HH cows had lower (p
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