Search
Now showing items 1-10 of 31
Differences in oxygen consumption and critical oxygen levels of five stream fishes
(2013-11-08)
Metabolic rate represents an integrated measure of a fish’s physiology, particularly as it relates to stressors. A metric that is commonly used to determine the hypoxia tolerance of fishes is the determination of animal ...
Identification and analysis of recently duplicated genes in channel catfish (Ictalurus punctatus) genome
(2013-12-04)
Gene duplication is an important source of genetic innovation and structure and usually associated to the lineage-specific adaptive trait during evolution, such as genes related to immunity, development and reproduction. ...
Study and evaluation of bigano snail (Stramonita haemastoma) as a marketable seafood species
(2013-12-03)
To evaluate whether a species is potentially edible, marketable and sustainable, we need to answer quite a few questions about what, why, where, who, when and how. This dissertation consists of five chapters. The basic ...
Shifting Relationships Between Crayfish and Symbiotic Worms in Surface Water and Subterranean Environments
(2013-08-22)
Branchiobdellidans are small annelids (Clitellata) that have neutral, positive, and negative effects on stream crayfishes. Host effects are context dependent, with positive effects (increased survivorship and growth) ...
Evaluation of soybean meal from selected cultivars of soybeans for use in practical diets for L. vannamei
(2013-11-08)
This study was designed to evaluate the efficacy of twelve sources of soybean meal (SBM), which included new soy varieties in practical feed formulation for Pacific white shrimp, Litopenaeus vannamei, using both digestibility ...
Towards the identification of sex-determining gene(s) in channel catfish
(2013-06-20)
Sex is the most fundamental feature in the life of an organism. Studying of sex determination is an important area in animal developmental and evolutionary biology, as well as ecology. In teleost, sex determination mechanism ...
Effects of pre- and probiotics on pond production, growth and disease susceptibility of channel catfish Ictalurus punctatus and Nile tilapia Oreochromis niloticus
(2013-12-04)
Disease outbreaks have become a major challenge to the profitable culture of fish and shellfish as aquaculture operations intensify. Globally, total annual losses from disease outbreaks have reached billions of United ...
Controlled Spawning of White Catfish, Ictalurus catus, and Brown Bullhead Catfish, Ameiurus nebulosus, Using Carp Pituitary Extract and LHRHa
(2013-01-03)
If successful artificial spawning techniques can be developed, white catfish, Ictalurus catus, and brown bullhead, Ameiurus nebulosus, may have the potential to become model organisms for accelerated catfish genetics ...
Reproduction of channel x channel, channel x blue, and blue x blue catfish as influenced by morphological characteristics and behavior
(2013-04-22)
Although hybrid catfish that are produced from channel female (Ictalurus punctatus) and blue male (Ictulurus furcatus) display superior characteristics for aquaculture, hybridization successes in natural environments are ...
Development and Application of Grain Distillers Dried Yeast for Pacific White Shrimp Litopenaeus vannamei
(2013-04-23)
In recent years there has been an increasing interest in developing low-cost feeds for the Pacific white shrimp, Litopenaeus vannamei. High prices and limited supply are the main factors that have affected primarily feed ...