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.: Home > Animal Science Papers and Reports > 2016 > Volume 33 Number 2 > Enrico Fiore 1 , Antonio Barberio 2 , Massimo Morgante 1 , Maria Rizzo 3 , Elisabetta Giudice 4 , Giuseppe Piccione 3 **, Marcello Lora 1 , Matteo Gianesella 1

Glucose infusion response to some biochemical parameters in dairy cows during the transition period

Enrico Fiore 1 , Antonio Barberio 2 , Massimo Morgante 1 , Maria Rizzo 3 , Elisabetta Giudice 4 , Giuseppe Piccione 3 **, Marcello Lora 1 , Matteo Gianesella 1
1 Department of Animal Medicine, Productions and Health (MAPS), University of Padua, Viale dell’Universita 16, 35020 Legnaro (Padua), Italy 2 Experimental Zooprophylactic Institute of Venice, Viale dell’Universita 12, 35020 Legnaro (Padua), Italy 3 Department of Veterinary Sciences, University of Messina, Polo Universitario dell’Annunziata, 98168, Messina, Italy 4 Department of Biological and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres 31, 98166, S. Agata-Messina, Italy
Abstract :
The aim of this study was to evaluate the effect of pre-partum versus post-partum periods on the
biochemical profile in dairy cows. The effect of glucose tolerance test (GTT) on glucose (Glu
on-farm
)
and β-Hydroxybutyrate (BHB
on-farm
) levels was also assessed. 42 Holstein cows from two different
farms (farm A and farm B) were enrolled in the study. Body Condition Score (BCS) was determined
for both groups. The GTT was carried out 7±5 days pre-partum and 7±5 days post-partum. In both
periods blood samples were taken at T0 (pre-glucose administration), at T10 and T80 (10 and 80
minutes post-glucose administration). All samples were analysed for total protein, albumin, globulin,
glucose, urea, aspartate aminotransferase (AST), alanine aminotransferase (ALT), calcium (Ca),
phosphorus (P), sodium (Na), chloride (Cl), potassium (K), magnesium (Mg) and BHB
on-farm.
Two-
way ANOVA was applied to determine significant effects of the transition period (pre-partum vs.
post-partum) and farm (A vs. B) on the studied parameters as well as the effect of time before and
after the GTT on Glu
on-farm
. The average values of BCS, glucose, urea, Ca, Cl and K are significantly
lower in the post-partum when compared to the pre-partum period (P<0.05). The increase in AST
concentrations during the post-partum period (P<0.05) is considered a suitable indicator of hepatic
steatosis. The glucose tended to increase significantly at T10 (P<0.05) and returned to pre-infusion
concentrations at T80. These results confirm that the transition period is an important metabolic
challenge to high-yielding dairy cows. Therefore, this study provides useful information in order to
prevent the outset of nutritional imbalance that typically occurs in high production dairy cows.
Keywords :
biochemical parameters / dairy cows / Glucose Tolerance Test (GTT)

Date Deposited : 24 Mar 2016 10:29

Last Modified : 24 Mar 2016 10:29

Official URL: http://www.ighz.edu.pl/files/objects/7556/66/str_129-136.pdf

Volume 33, Number 2, - 2016

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