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| Titel: |
Influence of lamb presence on daily rhythm in lactating ewes |
| Auteur: |
Morgante, M. Stelletta, C. Gianesella, M. Cannizzo, C. Sfefani, A. Giannetto, C. Piccione, G. |
| Verschenen in: |
Acta agriculturae Scandinavica. Section A, Animal science |
| Paginering: | Jaargang 58 (2008) nr. 2 pagina's 84-92 |
| Jaar: |
2008-06 |
| Inhoud: |
To determine the influence of lamb presence on the dairy ewes circadian system we monitored simultaneously 16 different parameters (insulin, glucose, total protein, urea, cholesterol, triglycerides, total bilirubine, calcium, phosphorus, magnesium, sodium, potassium, chloride, rectal temperature, respiratory rate and heart rate). Sixteen clinically healthy Sarda breed dairy ewes, divided into two groups, group A with their lambs and group B without their lambs, were used. Data collection was done at 3 hourly intervals over a 24-h period. Our results indicate that lamb presence influences ewes metabolism, inducing modifications of the acrophase and robustness of the rhythm of some physiological variables. Most variables lost the rhythmicity that they show in not pregnant and not lactating ewes. Lamb presence also influenced urea circadian rhythm: the time of urea peak was shifted from 16:00 to 12:24±00:35 when ewes were housed with lambs, and on triglycerides circadian rhythm. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 9 gevonden artikelen
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