Pregnant Sheep in a Farm Environment Did Not Develop Anaemia

Area of Science:

• Veterinary Medicine
• Animal Science
• Reproductive Biology

Background:

• Pregnancy imposes significant physiological demands on ewes.
• Understanding haematological changes is crucial for assessing ewe health and productivity.
• Nutritional status and parasitic load can influence maternal health during gestation.

Purpose of the Study:

• To document the haematological profile of pregnant ewes throughout gestation.
• To investigate the impact of singleton and twin pregnancies on haematological parameters.
• To assess trace element status and its relation to haematology in pregnant ewes.

Main Methods:

• Blood samples collected bi-weekly from non-pregnant, singleton, and twin pregnant ewes.
• Analysis included haemoglobin, packed cell volume, total protein, albumin, copper, zinc, glutathione peroxidase (GSHPx), and methylmalonic acid (MMA).
• Faecal egg counts and pasture quality assessments were also performed.

Main Results:

• No significant differences in haematology or protein concentrations between pregnant and non-pregnant groups.
• Copper levels increased, while zinc levels were lowest in pregnant ewes early in gestation.
• Methylmalonic acid decreased during gestation, but glutathione peroxidase remained unchanged.

Conclusions:

• Healthy pregnant ewes in a well-managed farm environment with adequate diet and no parasites do not develop anaemia.
• Trace element concentrations fluctuate during gestation but remain within acceptable ranges.
• Pregnancy itself, under optimal conditions, does not necessarily lead to detrimental haematological changes.