University of Khartoum

Blood constituents in cycling, gestating and lactating desert ewes (Ovis aries) in relation to dietary supplementation.

Blood constituents in cycling, gestating and lactating desert ewes (Ovis aries) in relation to dietary supplementation.

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Title: Blood constituents in cycling, gestating and lactating desert ewes (Ovis aries) in relation to dietary supplementation.
Author: Abdelatif, Abdalla Mohamed; El-Nageeb, M. E.; Makawi, S. E. A.; etal
Abstract: he long term responses in blood parameters were evaluated during normal reproduction cycle, pregnancy and lactation of desert ewes receiving supplement feeding. Twenty sexually mature desert ewes were divided into two equal groups, control and supplemented. Both groups were kept on grazing residues of harvested field of sorghum. The supplemented group received daily 500 g of concentrate mixture rich in energy and protein (crushed sorghum grain and cottonseed cake). In both groups, oestrus was synchronized by hormonal method and the ewes were inseminated naturally. Pregnancy was diagnosed by ultra-sound technique. The haemoglobin concentration (Hb) increased significantly with the advance of pregnancy in both groups of ewes. The packed cell volume (PCV) decreased with the advance of pregnancy, increased at parturition and decreased thereafter with the progress of lactation. The supplemented ewes maintained higher values of these indices during pregnancy and lactation. The serum levels of total protein (Tp) and albumin (Alb) decreased during early- and mid-pregnancy, while levels of serum urea and plasma glucose increased significantly with the advance of pregnancy. At parturition serum (Tp), (Alb) and urea (Ur) and plasma glucose level (Gl) increased in both groups. The serum (Ur) and plasma (Gl) increased gradually with the advance of lactation in both groups. Dietary supplementation increased significantly serum concentrations of (Tp), (Alb), (Ur) and plasma (Gl) level during pregnancy and lactation. Maintaining concentrate supplement enhanced the plane of nutrition of the ewes during normal cycling, pregnancy and lactation. This evidence would provide means for evaluation of the physiological responses and their implications in productive traits of desert ewes.
URI: http://khartoumspace.uofk.edu/123456789/22177


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