Ontogenetic changes in the histological features of zonal bone tissue of ruminants: A quantitative approach

Abstract

Please cite this article in press as:Jordana, X., et al., Ontogenetic changes in the histological features of zonal bone tissue of ruminants: A quantitative approach. C. R. Palevol (2015), http://dx. a b s t r a c tBone histology is a powerful tool to explore the growth patterns of vertebrates. There is a broad consensus that a deeper understanding of bone development in living taxa is still lacking. Here, we aim to explore the ontogeny of the fibrolamellar (FLC) zonal bone of mammals by studying histological sections of the femoral growth series of 84 wild ruminants.Our results indicate that large ruminants do not preserve a complete ontogenetic record of primary bone growth, so it is necessary to use methods of age retrocalculation. Our study also stresses the ontogenetic variation in histological features of the FLC-zonal bone (vascular orientation, vascular and osteocyte lacunae density) that may reflect the slowdown in growth associated with the onset of physiological maturity. We conclude that the transition from FLC bone to lamellar bone (EFS) in ruminants records the fundamental life history trade-off between growth and reproduction (reproductive maturity).

Calibration of life history traits with epiphyseal closure, dental eruption and bone histology in captive and wild red deer

“…The analysis of the C. e. hippelaphus population confirms that the total number of BGMs is not as reliable for deer as expected from previous publications (Jordana et al. ). The data provided about the ages of these deer show that the number of BGMs present in tibiae corresponds to the known age.…”

“…CGMs can also be found in mammalian limb bones (K€ ohler et al 2012). This finding is supported by numerous histological studies in several mammalian groups such as primates (Castanet et al 2004;Castanet, 2006), rodents and lagomorphs Moncunill-Sol e et al 2016;Orlandi-Oliveras et al 2016) and ungulates K€ ohler et al 2012;Jordana et al 2016;Nacarino-Meneses et al 2016a,b;Orlandi-Oliveras et al 2018). Data about growth rates of extinct deer and their relation with LH have been obtained recently by means of the analysis of bone histology (Amson et al 2015;Kolb et al 2015a).…”

“…2015b; Jordana et al. ). It is important to highlight that specimens from Lleida exhibited a different growth pattern than the other two populations, both in femora (Fig.…”

“…This has been claimed to be true for ruminants in a study based on femora of wild individuals of unknown age (Jordana et al. ) but has been shown not to be fully reliable in equids of a known age (Nacarino‐Meneses et al. 2016a).…”

“…In the case of the tibiae, significant differences were not found between subspecies, either in total growth areas (P = 0.617) or in single areas. We calculated the growth rates for each growth zone both for tibia and femur using bone growth areas, instead of distance between BGMs (Mar ın- Moratalla et al 2013Moratalla et al , 2014Kolb et al 2015b;Jordana et al 2016). It is important to highlight that specimens from Lleida exhibited a different growth pattern than the other two populations, both in femora ( Fig.…”