Abstract
The objective of this work was to determine the repercussion of the metabolic changes that occur in induced subclinical pregnancy toxemia in single- or twin-bearing ewes on the duration of gestation, type and length of lambing, and placental expulsion time. Fifty-one adult Corriedale ewes with a known gestation date and fed in the wild were randomly divided at day 145 of gestation into four groups. Group A included single-bearing ewes, and C twin-bearing ewes, all of which were fed [...]
Highlights
Gestational toxemia is a common metabolic disorder that affects pregnant ewes during the last third of the gestational period and develops to the inability of the organism to maintain energy homeostasis during negative energy balance (Harmeyer and Schlumbohm, 2006; West, 1996)
The objective of this work was to determine the repercussion of the metabolic changes that occur in induced subclinical pregnancy toxemia in single- or twin-bearing ewes on the duration of gestation, type and length of lambing, and placental expulsion time
Glycemia and β-hydroxybutyrate values compatible with subclinical pregnancy toxemia were achieved after 48 h of feed restriction, being 30.67±2.37 mg/dL and 1.87±0.12 mmol/L in single-bearing ewes and 28.40±3.39 mg/dL and 2.21±0.42 mmol/L in twin-bearing ewes, respectively
Summary
Gestational toxemia is a common metabolic disorder that affects pregnant ewes during the last third of the gestational period and develops to the inability of the organism to maintain energy homeostasis during negative energy balance (Harmeyer and Schlumbohm, 2006; West, 1996). This energy metabolism abnormality can cause a severe form of ketosis, characterized by low circulating levels of blood glucose and high levels of ketone bodies (Sorondo and Cirio, 2011; Rook, 2000). The effects of the subclinical presentation of this pathology on these reproductive parameters has not yet been described
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