3 edition of Inbreeding and brood stock management found in the catalog.
Inbreeding and brood stock management
by Food and Agriculture Organization of the United Nations in Rome
Written in English
|Statement||by Douglas Tave.|
|Series||FAO fisheries technical paper -- 392., FAO fisheries technical paper -- no. 392.|
|Contributions||Food and Agriculture Organization of the United Nations.|
|LC Classifications||SH1 .F2 no. 392|
|The Physical Object|
|Pagination||x, 122 p. :|
|Number of Pages||122|
Brood Stock and Immature Horses. For brood stock and immature horses, the wear to the hoof capsule rarely exceeds normal hoof growth, so routine and timely trimming generally is the only hoof care necessary for these horses. (Young horses with specific problems, such as flexural limb deformities, may require some type of shoe or other device. Since , breeding of endemic and exotic aquaculture species for seed producton through hypophysation techniques has become a common practice. The paper describes the present status of broodstock management, identifies problems, and suggests some guidelines to control negative selection and inbreeding in hatchery stocks in Bangladesh.
Management of Brood Stock. The management of broodstock is slightly different from normal grow-out catfish. The following are the brief hints that could help you manage your brood stock well; Stock limited number of fishes per square meter of water. Do not stock more than fishes in a pond that can ordinarily sustain grow-out fishes. Title: Fish brood stock management and transportation of brood fish 1 Fish brood stock management and transportation of brood fish 2 INTRODUCTION. farm (there are instances of inbreeding depression, as reported by Eknath and Doyle () and maintain them in ponds at a density of.
Inbreeding and brood stock management. Food and Agriculture Organization of the United Nations. p. Food and Agriculture Organization of the United Nations. p. Salt Lake Sector-V Metro Station ( words) [view diff] case mismatch in snippet view article find links to article. World Book Day was designated by UNESCO as a worldwide celebration of books and reading and is marked in over countries around the globe. For the occasion, we have listed 5 amazing dog breeding books for dog breeds who are really passionate and devoted to improving their breed and want to flirt with breeding excellence.
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Inbreeding and brood stock management. Book January Inbreeding depression can lead to low performance of hatchery-reared shrimp, Author: Douglas Tave. Download inbreeding and brood stock management or read online books in PDF, EPUB, Tuebl, and Mobi Format.
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Inbreeding And Brood Stock Management. Summary: This manual, written for extension workers, aquaculturists, and those who work with inbreeding in cultured fish populations and describes management techniques that can be used to prevent or minimize inbreeding.
The manual also describes how inbreeding can be used to improve captive populations of fish. When managing a hatchery population, managing its effective breeding number may be the most important aspect of brood stock management, because inbreeding is inversely related to effective breeding number.
Chapter 5 is a brief explanation of genetic drift. Like inbreeding, it too is inversely related to effective breeding number. Buy Inbreeding and Brood Stock Management (FAO Fisheries Technical Paper) by Food and Agriculture Organization of the United Nations (ISBN: ) from Amazon's Book Store.
Everyday low prices and free delivery on eligible orders. Even though these tests can be expensive, if the prevention of inbreeding and the problems associated with genetic drift are a crucial aspect of brood stock management, this technique is a valuable tool that will reveal whether the management programme is succeeding.
Genetics for Fish Hatchery Managers, 2nd ed. Van Nostrand Reinhold, New York, New York, USA. This textbook is written for extension specialists, government hatchery personnel, and fish farmers. It contains sections on all aspects of fish breeding, including one about inbreeding, genetic drift, and management of effective breeding number.
Brood stock management plans that make fish farming economically successful are plans that make stocking programmes unsuccessful. Much of the blame can be attributed to the small numbers of fish that are spawned every year which lead to unwanted levels of inbreeding that will, in turn, lower survival.
From: Tave, D. Genetics for Fish Hatchery Managers, 2nd ed. Van Nostrand Reinhold, New York, New York, USA. The probabilities listed in Table 2 are for a single generation (single spawning season with complete brood stock replacement or the acquisition of brood stock).
depends on timely and adequate supply of quality seeds. Since middle of nineties, stock deterioration was reported because of poor brood stock management and inbreeding depression and still though both public and private hatcheries and nurseries are producing fish seeds.
Poorly planned genetic management of broodstock and breeding can result in declines in the quality of stock over a number generations leading to, for example, reduced fecundity, hatch rates and.
Based on these data, the effective population size and inbreeding coefficients could be estimated for broodstock used in aquaculture and resources enhancement programs. Genetic fluctuation was monitored in the seed population of a marine fish species, the red sea bream, to determine the stock management procedure.
The book consists of 12 chapters explaining mainly about tilapia biology, brood stock replacement and breeding plans, simple genetics, development and operation of. Anadromus runs of Atlantic salmon have been restored to the Connecticut, Merrimack, Pawcatuck, Penobscot, and St. Croix rivers in New England by the stocking of more than 8 million smolts since Fish-breeding methods have been developed that minimize inbreeding and domestication and enhance natural selection.
Methods are available to advance the maturation of brood stock, control the sex. Careful inbreeding is often of great value to a breeder. It is most successful when the highest quality dogs are used as brood stock, the breeder has a thorough knowledge of the dog’s pedigree and intends to fix within the bloodline specific desirable traits.
It is observed that maturity can be advanced in carps through brood stock management. Furthermore, it can be extended by recruiting professional broods (spent breeders from the preceding season. Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically.
By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from expression of deleterious or recessive traits resulting from incestuous sexual relationships and consanguinity. Broodstock, or broodfish, are a group of mature individuals used in aquaculture for breeding purposes.
Broodstock can be a population of animals maintained in captivity as a source of replacement for, or enhancement of, seed and fry numbers. These are generally kept in ponds or tanks in which environmental conditions such as photoperiod, temperature and pH are controlled.
Scientific Poultry Books say it can\'t be done. So do some livestock veterinarians. But gamefowl breeders of old swear by the method of line breeding as proff that carefully managed inbreeding within a line produces the best fighters and keeps a winning line for several generations.
Inbreeding is the reproduction from the mating of two genetically related parents. Inbreeding results in increased homozygosity, which can increase the chances of offspring being affected by recessive or deleterious traits.
This generally leads to a decreased fitness of a population, which is called inbreeding depression.A person who results from inbreeding is referred to as an inbred.
The absence of a scientific brood stock management and development program creates a dire scarcity of brood stock during the breeding season. This led fish breeders, particularly the medium-sized, small, and marginal breeders to practice breeding with very small numbers of founder population, resulting in a high rate of inbreeding.Wisconsin Muskellunge Brood Stock Management Plan.
Tim Simonson, Dr. Brian Sloss, Dr. Martin Jennings, and the. Muskellunge Management Team. Revised September Background: One major objective of muskellunge management in Wisconsin is to manage the species as a trophy. Another key goal is to protect naturally reproducing populations.
Brood stock management of Treatment 2 showed significantly better results (P.