Lactation influences the serum level of leptin and growth hormone during the daily bathyphase in ewes
- Carcangiu, V.
- Giannetto, C.
- Luridiana, S.
- Fazio, F.
- Mura, M. C.
- Piccione, G.
- PARMEGGIANI, ALBAMARIA
DOIAbstract
The aim of the study was to investigate the influence of early lactation on leptin and growth hormone (GH) during bathyphase. Forty lactating Sarda ewes were divided into two equal groups on the basis of their milk production levels: HIGH (>1100 g/day) and LOW (<900 g/day). From the 5th to the 110th day after lambing, every 15 days, body condition score (BCS) was recorded and milk samples were collected. At the same data point, blood sampling was performed and leptin, GH and, Non-Esterified Fatty Acids (NEFA) were assessed. On milk, fat and proteins were determined. Statistical differences were observed in BCS, leptin, GH, NEFA and fat concentration in milk between the two groups. BCS was lower in high group and decreased from the 20th to t...
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