Age-Related Changes in the Activity of Bone Alkaline Phosphatase and its Application as a Marker of Prefledging Maturity of Nestlings in Wild Passerines

摘要: Abstract Recent studies have suggested that bone alkaline phosphatase (ALP) may be a valuable indicator of skeletal development in wild birds. However, the information about age-related dynamics ALP isoforms passerines is very scanty. We examined changes activity and liver tested applicability these isoenzymes as indicators chick maturity randomly selected nestlings small passerine bird, Great Tit (Parus major). Bone was elevated middle nestling period (day 8), when growth assumed to most rapid, declined significantly during prefledging stage 15 posthatch). at this age positively highly related overall duration negatively less wing length body mass. All three morphological traits 15-day-old were nearly correlated with nestl...