Download or read book Growth and Food Habits of Supplementally Fed and Unfed Young of The year Channel Catfish Ictalurus Punctatus Held in Two Plastic lined Ponds written by John Wright McGuire and published by . This book was released on 1969 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Marine Fisheries Service Federal Aid Program Activities written by United States. National Marine Fisheries Service. Division of Federal Aid and published by . This book was released on 1971 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grant in aid for Fisheries Program Activities written by United States. National Marine Fisheries Service and published by . This book was released on 1973 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular written by and published by . This book was released on 1969 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grant in aid for Fisheries Program Activities written by United States. National Marine Fisheries Service. Grant-in-aid Staff and published by . This book was released on 1973 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1972-04 with total page 1542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fertilizers written by Robena J. Brown and published by . This book was released on 1976 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grant in Aid for Fisheries Program Activities written by United States. National Marine Fisheries Service and published by . This book was released on 1973 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1972 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquaculture a Bibliography with Abstracts written by and published by . This book was released on 1975 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1972 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth of Channel Catfish Ictalurus Punctatus Rafinesque Fed Artificial Diets in Ponds Near Corvallis Oregon written by Plodprasop Suraswadi and published by . This book was released on 1970 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiment was conducted at the Soap Creek farm ponds near Corvallis, Oregon. Oregon Moist Pellet and Purina Trout Chow at three different rates of feeding for each diet were used to feed fingerling channel catfish stocked at the rate of 1,000 per acre. A complete random design and Fisher's least significant differences tests of the means were employed to compare the growths of fish from six treatments which were sampled at three separate times. The growth rates of fish from all treatments were quite similar and the differences of the mean length and weight of fish from each period of rearing were not consistent, which suggests that their growth rate was not dependent upon the diets or the feeding rate but rather upon some factor such as temperature. The standard deviations of the mean weights of fish were extremely high, which indicates that not all fish relied on the supplemental foods. Positive values of the amount of skewness in the weight frequency distributions indicates that the majority of fish were small. The mean conversion factors for both diets at any feeding level were quite similar, which suggests that the fish did not respond well to an increase in the amount of food available. And since the fish in this experiment did not rely completely on the artificial diets, the conversion factors are of little value from a nutritional standpoint. The production of fish in this experiment was in the neighborhood of 66 kg. per surface acre over a period of 151 days. This figures indicates that rearing channel catfish with supplementary feeding in the Willamette Valley might hold promise.

Download or read book Age Growth Sexual Maturity and Food of Channel Catfish in Central Lake Oahe 1968 69 written by Victor J. Starostka and published by . This book was released on 1974 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Channel catfish were collected with gill nets, trawl, and trap nets at three localities in Lake Oahe for the study of year-class strength, growth in length and weight, age composition, sexual maturity, and food.

Download or read book Vitamins Essential for Growth of Channel Catfish written by Harry K. Dupree and published by . This book was released on 1966 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symptoms were identified in channel catfish fed diets deficient in the water-soluble vitamins pyridoxine, pantothenic acid. riboflavin, thiamine, folic acid, nicotinic acid, B-12, or Choline. Fat-soluble vitamin A and vitamin K deficiency systems were observed after feeding diets which contained beta-carotene and 4.0 milligrams of menadione (synthetic vitamin K) per 100 grams of food (dry weight). These deficiencies were eliminated by substituting vitamin A palmitate for beta-carotene and doubling the content of menadione. No dietary need was observed for the water-soluble vitamins biotin, inositol, ascorbic acid, and para-aminobenzoic acid.

Download or read book Channel Catfish Culture in Midwestern Plastic lined Ponds written by Len Michael Kring and published by . This book was released on 2005 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2000, the Iowa Department of Natural Resources began using 10 0.4-ha and six 0.04-ha plastic-lined ponds at the Rathbun Fish Hatchery and Research Facility (Moravia, Iowa) to culture game fish that are subsequently stocked into public waters. During the first 3 years of use, inconsistent growth and survival of channel catfish (Ictalurus punctatus) were evident. Two separate studies were composed to better understand the culture of channel catfish in these ponds. The effects of stocking density was investigated in the 0.4-ha production ponds. In 2003, stocking densities were 75,000 and 112,000 fish/ha. No significant differences were seen in catfish production; although fish in the lower treatment were slightly larger. The only significant difference with regard to water quality was that the ponds stocked with 112,000 fish/ha had higher concentrations of total phosphorus. In 2004, the same ponds were stocked at rates of 38,000 and 75,000 fish/ha. The fish in the lower treatment exhibited significantly higher specific growth and normalized biomass. These fish were also significantly longer and heavier at harvest. Ponds stocked at a rate of 75,000 fish/ha had significantly higher concentrations of on ammonia, total phosphorus and chlorophyll a. In 2004, the six 0.04-ha plastic-lined ponds were used in conjunction with six 0.08-ha earthen ponds located at the Iowa State University Horticulture Station (Ames, Iowa), to assess the effects of dietary protein percent on the production of channel catfish. Plastic-lined ponds that received the 28% protein feed exhibited significantly higher levels of total phosphorus and turbidity. Earthen ponds that received the 36% protein feed displayed significantly higher concentrations of ammonia and chlorophyll a. Fish fed the 36% protein diet in the plastic-lined ponds had significantly higher relative weights (W[Subscript r]) then fish fed the 28% protein diet. There was a significant difference in harvest lengths and weights in the earthen, with the fish fed the 36% protein feed being longer. A stocking density between 38,000 and 75,000 fish/ha should be used to culture channel catfish fingerlings in plastic-lined ponds in Iowa, with fish being fed a feed that contains over 28% protein.

Download or read book Food Habits of Supplementally fed Fingerling Channel Catfish written by Richard Farney and published by . This book was released on 1973 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Corn Oil and Beef Tallow on Growth of Channel Catfish written by Harry K. Dupree and published by . This book was released on 1969 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the quantity of a dietary fat offered to fish was increased, the iodine number of deposited fat approached that of the ingested fat. Change was greater with diets that contained corn oil than beef tallow suggested more efficient digestion and absorption of corn oil than beef tallow.