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Oviposition rate of the fanskate Sympterygia bonapartii (Elasmobranchii, Rajidae) (Müller & Henle, 1841) held in captivityTasa de oviposición de la raya marmolada Sympterygia bonapartii (Elasmobranchii, Rajidae) (Müller & Henle, 1841) mantenida en cautiverio
(Panamjas, 2009-04)
Se registró la tasa de oviposición de Symperygia bonapartii en cautiverio. En un período de un año una hembra depositó 152 ovicápsulas a una tasa de 0.4 huevos por día y la otra depositó 200 ovicápsulas a una tasa de 0.5 ...
Reproductive biology of the Magellan skate, Bathyraja magellanica (Chondrichthyes, Rajidae), in the south-western Atlantic
(Csiro Publishing, 2014-06)
The knowledge of reproductive parameters is essential to develop effective management and conservation plans. The present study provides the first information on the reproductive biology of an abundant and important trawl ...
Multivariate analysis of sources of polyunsaturated fatty acids, selenium, and chromium on the productive performance of second-cycle laying hens
(Brazilian Journal of Animal Science, 2022)
The wages of violence: mobbing by mockingbirds as a frontline defence against brood-parasitic cowbirds
(Elsevier, 2013-11)
For many hosts of brood-parasitic birds, their frontline of defence is to mob adult parasites that approach the nest. Mobbing is commonly interpreted as an adaptation to prevent the parasite from laying, although to date ...
The effect of feed protein content on the uniformity of production in laying hens
(2018-01-01)
The objective of this research was to describe the effect of dietary protein content on the uniformity of egg production in ISA-Brown and Hy-Line laying strains. Six dietary protein levels (120-220 g protein/kg feed) were ...
Temperature and female size effects on egg production of calanus chilensis: laboratory observations
(SOC BIOLGIA CHILE, 1996)
Three experiments under laboratory condition were conducted to study the effect of temperature and female size, measured as prosome length and dry weight, on egg production and egg viability of Calanus chilensis Brodsky ...
Exploring nursery sites for oviparous chondrichthyans in the Southwest Atlantic (36°S–41°S)
(Taylor & Francis As, 2016-08)
The aim of this paper was to explore egg-laying areas of oviparous chondrichthyans occurring in the northern part of the Southwest Atlantic Ocean (36°S–41°S) at between 50 and 200 metres depth and the Mar del Plata Canyon ...
Red-crested cardinal defences against shiny cowbird parasitism
(Brill Academic Publishers, 2012-04)
Avian brood parasites reduce the reproductive success of the host, which favours the evolution of antiparasitic defences, such as aggression towards parasites or rejection of their eggs. The red-crested cardinal, Paroaria ...