Body condition score positively influence plasma leptin concentrations in criollo goats

This study was evaluates the effect of body condition score (BCS) on leptin concentrations of Criollo goats under increased photoperiod in central Mexico (22°N). Mature Criollo goats (n = 24) were assigned to one of 4 experimental groups according to their BCS: Excellent (n = 6), Good (n = 6), Regular (n = 6) and Poor (n = 6). Blood samples were collected in 5 random dates during the experimental period (Feb-Jun) and leptin levels were analyzed by RIA. BCS affected (p<0.0) serum leptin concentration in a direct and proportional way; the better the BCS the greater serum leptin concentration. Results should help to understand adaptation mechanisms exerted by goats facing a marginal nutritional support. The last could be of economic significance especially in criollo goats managed under semi-arid conditions, in which scenarios of restricted nutrition prevail. © Medwell Journals, 2008.

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