Results 21 to 30 of about 25,853 (250)

Heterochrony of puberty in the European badger (Meles meles) can be explained by growth rate and group-size: Evidence for two endocrinological phenotypes.

PLoS ONE, 2019
Puberty is a key stage in mammalian ontogeny, involving endocrinological, physiological and behavioural changes, moderated by intrinsic and extrinsic factors. Thus, not all individuals within one population achieve sexual maturity simultaneously.
Nadine Adrianna Sugianto, Chris Newman, David Whyte Macdonald, Christina Dagmar Buesching   +3 more
doaj   +1 more source

Reproductive biology of pacu Piaractus mesopotamicus (Holmberg, 1887) (Teleostei: Characidae) in the Cuiabá River Basin, Mato Grosso, Brazil

Neotropical Ichthyology
The purpose of this study was to analyze the reproductive strategy and life-history traits involved in the reproductive processes of P. mesopotamicus in two regions of the Cuiabá River basin, the first of these encompassing its headwaters (Cuiabazinho ...
Rosa Maria Rodrigues da Costa, Lúcia Aparecida de Fátima Mateus   +1 more
doaj   +1 more source

Spawning frequency, fecundity, egg size and ovarian histology in groups of maintained upon two distinct food ration sizes from first-feeding to sexual maturity

Aquatic Living Resources, 1999
Duplicate groups of first-feeding (4-5-d-old) Tilapia zillii (Gervais) were maintained on two feeding regimes (high and low ration size) for a total period of 550 d (~ 17 months) in environmentally-controlled aquaria. Differences in mean individual fish weight were evident between fish fed the different ration sizes after just 3 months, though these ...
K COWARD, N BROMAGE
openaire   +1 more source

Reproductive biology of 58 fish species around La Réunion Island (Western Indian Ocean): first sexual maturity and spawning period

Journal of Animal Reproduction and Biotechnology
Background: The biological information of fish, which include reproduction, is the prerequisite and the basis for the assessment of fisheries. Methods: The aim of this work was to know the reproductive biology with the first sexual maturity (TL50) and ...
Kélig Mahé, Julien Taconet, Blandine Brisset, Claire Gentil, Yoann Aumond, Hugues Evano, Louis Wambergue, Romain Elleboode, Tévamie Rungassamie, David Roos   +9 more
doaj   +1 more source

Growth patterns and reproductive strategies in the lizard, Calotes versicolor raised in captivity

Acta Herpetologica, 2010
The paper describes the growth patterns and breeding strategies in the lizard, Calotes versicolor in captivity. The lizards were raised in laboratory from hatching.
B.N. Pandav, B.A. Shanbhag, S.K. Saidapur   +2 more
doaj   +1 more source

Differential Sexual Maturity Among Breeding Adults of Black Sea Turtle (Chelonia mydas agassizii) from Michoacan, Mexico

Diversity
This work assessed the sexual maturity of breeding females and males of black sea turtles (Chelonia mydas agassizii) from the population in Michoacan, Mexico.
Carlos Delgado-Trejo, Miguel Ángel Reyes-López, David Guillermo Pérez-Ishiwara, Omar Domínguez-Domínguez, Andrea Tapia-García, Fátima Yedith Camacho-Sánchez, Cutzi Bedolla-Ochoa   +6 more
doaj   +1 more source

Reproductive biology of the squirrelfish, Holocentrus adscensionis (Osbeck, 1765), caught off the coast of Pernambuco, Brazil

Scientia Marina, 2007
In the present work, specimens of Holocentrus adscensionis, caught off Pernambuco State, northeast Brazil, by small scale artisanal fishing boats, were analyzed with regard to gonad maturation, gonad index, size at first sexual maturity, fecundity, type ...
Renata A. Shinozaki-Mendes, Fabio Hissa Vieira Hazin, Paulo Guilherme de Oliveira, Felipe Correia de Carvalho   +3 more
doaj   +1 more source

Influence of different altitudes on productive and reproductive performance of pigs

Indian Journal of Animal Sciences, 2016
Upgraded (Hampshire × Indigenous, 270) pigs were distributed to 9 families each in 10 villages situated at different altitudes in Nagaland with 1 male and 2 female pigs/family. Significant higher body weight was recorded at high altitudes, i.e.
ANGAULE KHATE ZELIANG, V B SHARMA, V K VIDYARTHI   +2 more
doaj   +1 more source

Life-history traits of Chloroscombrus chrysurus (Actinopterygii: Perciformes: Carangidae) in tropical waters of the Atlantic Ocean [PDF]

Acta Ichthyologica et Piscatoria, 2018
Background. In fishery biology, information on life-history traits is extremely useful for species conservation and the monitoring, management and sustaining of fish stocks.
J.D.G.R. De Queiroz, N.L.A. Salvador, M.F. Sousa, V.E.L. Da Silva, N.N. Fabré, V.S. Batista   +5 more
doaj   +3 more sources

Reproduction and Sexual Maturity of European Sardine (Sardina pilchardus) in the Central Mediterranean Sea

Frontiers in Marine Science, 2021
Understanding drivers of fish maturity is essential to predict the productivity, stability, and resiliency of exploited populations. Size at maturity for European sardine (Sardina pilchardus) in the Central Mediterranean Sea has never been published ...
Gualtiero Basilone, Rosalia Ferreri, Salvatore Aronica, Salvatore Mazzola, Angelo Bonanno, Antonella Gargano, Maurizio Pulizzi, Ignazio Fontana, Giovanni Giacalone, Pietro Calandrino, Simona Genovese, Marco Barra   +11 more
doaj   +1 more source