Selecciona los documentos para visualizarlos
Nombre del archivo | Ver recurso |
---|
Se han encontrado 10 recursos
En este trabajo se evalúa el efecto de una dieta pelletizada y una extruída en el crecimiento, ganancia en peso, índice de conversión (considerando el peso total, el peso eviscerado y el peso eviscerado sin cabeza) y deposición de lípidos (carcasa, músculo y visceras) de la trucha arcoiris. Los p...
In this paper is evaluated the effect of a pelleted diet and a extruded diet, on the growth rate, weight gain, food conversion (considering the total weight, the eviscerated weight and the without head and viscera weight) and lipids deposition in carcass, muscle and vicera in rainbow trout. Fish ...
Documento presentado en el Taller Internacional: "Acuicultura rural de pequeña escala en América Latina y el Caribe: Enfrentando el nuevo milenio" realizado en Temuco del 9 al 12 de noviembre de 1999.
Eight different salinity effects on embryonic survival and embryonic and hatching phase time duration of jollytail (Galaxias maculatus) were assessed. Mean survival rates were higher at salinities values of 0, 4, 8, 12, 16 and 20 with 84.9, 84.0, 85.5, 86.1, 82.6 and 75.8% respectively with no si...
This study aims to evaluate the effect of temperature and salinity on Galaxias maculatus embryo survival. Embryos were incubated at 5, 10 and 15 degrees C and 0, 10 and 30 psu. At 5 degrees C all salinities induced 100% mortality. Furthermore, salinity of 30, regardless temperature, caused 100% m...
This study aims to evaluate the effect of pH on embryonic survival of Galaxias maculatus. Embryos were incubated at 6 different pH levels in the water. One-way ANOVA was used to compare averages between treatments and Tukey test to determine post hoc differences. The Probit regression was used to...
The use of antifungals was assessed to improve embryo survival of Galaxias maculatus. Three treatments using formalin dose of 250 ppm, iodine dose of 100 ppm, and sea salt in doses of 30 ups were designed, and a control treatment under 10 of salinity water. For each treatment and control, 15 repl...
The Cautin river is located in the 137 years old Araucania region, Chile (38 degrees S), and is characterized by alterations through human interference due agriculture and towns in its surrounding basin, the presence of salmonids, and by its mixed regime, originated from snow melting in summer an...
We evaluated the effect of six constant temperatures on embryonic survival, embryonic period and hatching period of Galaxias maculatus from 7 to 22 degrees C under laboratory conditions. The results of embryo survival were: 90.6 +/- 2.0, 88.7 +/- 8.6, 87.7 +/- 0.7, 89.7 +/- 4.2, 70.0 +/- 5.6 and ...
Selecciona los documentos para visualizarlos
Nombre del archivo | Ver recurso |
---|