BACKGROUND Elevated non-esterified fatty acids (NEFA) concentrations in non-pregnant animals have been reported to decrease pancreatic responsiveness. As ovine gestation advances, maternal insulin concentrations fall and NEFA concentrations increase. Experiments were designed to examine if the pregnancy-associated rise in NEFA concentration is associated with a reduced pancreatic sensitivity to...

Skylitseion Hospital of Chios, Dept. of Radiology 82100 Chios, Greece University of the Aegean, Dept. of Business Administration 8 Michalon Str., 82100 Chios, Greece e-mail: [email protected]

Intake is a multifactorial process that influenced by animal type, environmental factors, and diet characteristics. Sheep, especially, have specific eating habits, with greater selection of ingested feed compared to cattle. Thus, predictive equations for dry matter intake (DMI) must constantly be reviewed. The objective this study was combine different adjustment factors develop one continuous ...

In a first experiment, 2 groups of 46 and 47 multiparous ewes received diets which provided an iodine intake of 0.36 and 0.26 mg/kg dry matter (group C) and, 2.01 and 1.94 mg/kg (group D), respectively, for pregnancy and lactation. In a second experiment, 3 groups of 10 nulliparous ewes received diets which provided an I intake of 0.13 and 0.12 mg/kg dry matter (group A), 0.22 and 0.20 mg/kg dr...

The aim of the present study was to investigate the potential benefits of grazing lactating ewes and their lambs on chicory (Cichorium intybus). Fifty-six certified organic twin-rearing ewes were either drenched with an anthelmintic or not, within 2 days after parturition and were grazed upon either grass/clover or chicory pastures. Around 12 weeks after parturition a subset of 12 lambs per tre...

An investigation on the occurrence of peri-parturient rise in trichostrongylid nematode egg output in breeding ewes was carried out on a Ranch in the semi-arid area of Kajiado District in Kenya during the period May 1999-April 2000. During the study, 20 ewes randomly selected from the breeding stock and 20 un-mated female yearlings were monitored for faecal strongyle egg output every 3 weeks. A...

The ketoses of preparturient ewes and lactating cows have long been associated with a reduced food intake coupled with a failure of the compensatory gluconeogenic mechanism controlled by the adrenal cortex (Dyer, Roberts, Blampied & Fincher, 1953). I n 1941, Groenewald, Graf, Bekker, Malan & Clark reported the production of typical pregnancy disease in heavily pregnant ewes by a sudden reductio...