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contributor authorعبدالمنصور طهماسبیen
contributor authorسمیه حیدری جهان آبادیen
contributor authorعباسعلی ناصریانen
contributor authorAbdol Mansour Tahmasbifa
contributor authorSomayyeh Heidarijahanabadifa
contributor authorAbbas Ali Naserianfa
date accessioned2020-06-06T13:15:51Z
date available2020-06-06T13:15:51Z
date issued2014
identifier urihttps://libsearch.um.ac.ir:443/fum/handle/fum/3348136?locale-attribute=fa&show=full
description abstractThe aim of present study was to investigate the effect of 2 liquid feeds and 2 protein sources in starter

on the performance and blood metabolite responses of Holstein neonatal calves from birth to 6 wk of age.

Calves (20 males and 20 females) based on sex were randomly assigned to 4 treatments in a 2 × 2 × 2

factorial arrangement, including soybean meal (SBM) and meat and bone meal (MB) with either fermented

colostrum (or fresh milk. Although sex and liquid feed

had no significant effect on feed intake, calves consumed

more feed intake on the diet containing SBM (15 ± 0.2

kg) than MB (13 ± 0.2 kg) during the experimental

period; also, weight gain was affected by both liquid

feed and starter. Liquid feed and starter had significant

effects on calf body size, including pin width, hip

width, withers height, hip height, and stomach size,

but no significant effects were observed on calf body

size between the sexes. Plasma glucose concentration

was not affected by sex, liquid feed, or starter. Plasma

urea nitrogen concentration decreased in the first 3 wk

and then started to increase during the last 3 wk, but it

was only affected by starter and calves receiving SBM

(10.18 mg/dL) had a higher concentration of plasma

urea nitrogen than calves receiving MB (9.6 mg/dL) at

the end of the experiment. Plasma growth hormone and

insulin-like growth factor I concentrations decreased in

all treatment groups from d 0 to the end of the study.

No significant effects were observed on plasma growth

hormone and insulin-like growth factor I concentrations

between the 2 sexes, but they were significantly affected

by both liquid feed and starter. Results of the present

study provide useful information to apply to Holstein

neonatal calves during the first 6 wk of life when liquid

feed and 2 sources of protein in starter are considered.

Key words: calf , performance , blood metabolites
en
languageEnglish
titleThe effect of 2 liquid feeds and 2 sources of protein in starter on performance and blood metabolites in Holstein neonatal calvesen
typeJournal Paper
contenttypeExternal Fulltext
subject keywordscalfen
subject keywordsperformanceen
subject keywordsblood metabolitesen
subject keywordsbody sizeen
journal titleJournal of Dairy scienceen
journal titleJournal of Dairy Sciencefa
pages363-371
journal volume97
journal issue1
identifier linkhttps://profdoc.um.ac.ir/paper-abstract-1038283.html
identifier articleid1038283


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