©2021-2032
All Rights Reserved. Online Journal of Veterinary Research. You may not store
these pages in any form except for your own personal use. All other usage or
distribution is illegal under International copyright treaties. Permission to
use any of these pages in any other way besides the before mentioned must be
gained in writing from the publisher. This article is exclusively copyrighted
in its entirety to OJVR publications. This article may be copied once but may
not be, reproduced or re-transmitted without the express permission of the
editor.
OJVRTM
Online Journal of
Veterinary Research©
(Including Medical
and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 26 (3): 202-212, 2022.
Plasma copper, zinc, manganese, selenium and antioxidant
enzymes in
grazing pregnant ewes during dry season.
M Mohebbi-Fania, A
Mirzaeib, S Nazifib, MR Tabandehc,
Z Shabbooeid
a Department of Animal Health Management, b
Department of Clinical Studies, School of Veterinary Medicine, Shiraz
University, Shiraz 71345-1731, Iran; c Department of Basic Sciences,
School of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran; d DVM student,
School of Veterinary Medicine, Shiraz University, Shiraz, Iran
ABSTRACT
Mohebbi-Fani M, Mirzaei A, Nazifi S, Tabandeh MR, Shabbooei Z., Plasma copper, zinc, manganese, selenium and antioxidant
enzymes in grazing pregnant ewes during dry season, Onl
J Vet Res., 26 (3): 202-212, 2022. Plasma copper (Cu), zinc (Zn), manganese (Mn),
selenium (Se) and erythrocyte malondialdehyde (MDA), superoxide dismutase (SOD) and
glutathione peroxidase (GPX) were determined in 47 pregnant fat tailed ewes at 1st
day of 51-day breeding before pregnancy and 120 days later at 70-120 days of pregnancy.
Pregnancy was confirmed
in 43 ewes by plasma progesterone at day 120. Ewes were grazed on medium-to-low
quality pastures and cereal stubble given ~1 kg 40% alfalfa hay, 60% wheat
straw with ~100g barley grain head/day. A trace mineralized supplement was
available ad libitum. choice. Compared with values before pregnancy plasma copper declined
(P < 0.01) 58% and Zinc 53% whereas selenium increased 79% and manganese 50%.
Malondialdehyde increased (P < 0.001) 76%, whereas superoxide dismutase declined 29%
and gluthathione peroxidase 32%. Increased metabolism during
pregnancy along together with poor nutrition could be underlying findings. Fat
tailed ewes may experience oxidative stress during pregnancy when they are
mainly fed medium to low quality forages.
Key words: Copper, Zinc, Selenium,
Superoxide dismutase, Glutathione peroxidase, Oxidative stress, Sheep.
FULL-TEXT (SUBSCRIBE OR
PURCHASE TITLE)