Consulta: subjectFacets:"Eyestalk ablation"
Registros recuperados: 2
Data/hora: 01/06/2024 04:22:54

A soft technology to improve survival and reproductive performance of Litopenaeus stylirostris by counterbalancing physiological disturbances associated with handling stress
Provedor de dados: 5
Autores: Wabete, Nelly; Chim, Liet; Pham, Dominique; Lemaire, Pierrette; Massabuau, J.
The consequences of handling stress (fishing, transfer, eyestalk ablation) on shrimp broodstock are poorly documented. The weakness of farmed shrimp, Litopenaeus stylirostris, during winter is a major problem in New Caledonia, because of seasonal climate (tropical-sub-temperate). The transfer of broodstock in winter from earthen outdoor ponds to indoor maturation tanks in the hatchery (T=20 degrees C, Salinity=35 parts per thousand, fed shrimp) usually leads, after 48 h, to high mortality (up to 70%). Eyestalk ablation to induce ovarian maturation in females leads to further mortality.   Starting from a background analysis of physiological disturbances (initial osmoregulatory imbalance) associated with handling stress (Wabete, N., Chim, L., Lernaire, P.,...
Tipo: Text
Palavras-chave: Eyestalk ablation; Spawning; Handling stress; Broodstock; Litopenaeus stylirostris; Shrimp.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1880.pdf

Ablação ocular no camarão Macrobrachium rosenbergii (De Man) (Crustacea, Decapoda, Palaemonidae): efeitos sobre a reprodução, pigmentação epidérmica e atividade alimentar
Provedor de dados: 104
Autores: Santos,Marcel José Martins dos; Pinheiro,Marcelo Antônio Amaro.
This study analyze the consequences of unilateral and bilateral ablation based on ovigerous percentage, consecutive spawns, and secondary effects of the surgical process in the females of Macrobrachium rosenbergii (De Man, 1879). Two experiments were carried out with four and seven months old females in intermolt stage. Each experiment was comprised of control, unilateral and bilateral ablation. Eyestalk ablation was done with a bistoury with a topic hot cauterization followed by application of antibiotic pomades. The animals were maintained at constant temperature (28 ± 1,05ºC) and photoperiod of 12L: 12D within fibercement boxes with sandy bottom and biological filter. Females were observed once a day during fourteen weeks, registering gonadal condition,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Eyestalk ablation; Reproduction; Pigmentation; Feeding activity; Prawn.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000300012