Elsayed shokr (49 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Condizione: New.

Taschenbuch. Condizione: Neu. Physiology and reproduction in fish | Elsayed A. M. Shokr | Taschenbuch | Englisch | 2023 | LAP LAMBERT Academic Publishing | EAN 9786205630594 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. Introduction To Human Physiology For Medical Students | Elsayed SHokr | Taschenbuch | 292 S. | Englisch | 2016 | LAP LAMBERT Academic Publishing | EAN 9783659857362 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

Condizione: New.

paperback. Condizione: New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Paperback. Condizione: Brand New. 292 pages. 8.66x5.91x0.66 inches. In Stock.

Condizione: New.

paperback. Condizione: New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Condizione: New.

Taschenbuch. Condizione: Neu. Physiologie et reproduction chez les poissons | Elsayed A. M. Shokr | Taschenbuch | Französisch | 2023 | Editions Notre Savoir | EAN 9786205687093 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. Fiziologiq i razmnozhenie ryb | Elsayed A. M. Shokr | Taschenbuch | Russisch | 2023 | Sciencia Scripts | EAN 9786205687215 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Condizione: New.

Condizione: New.

Taschenbuch. Condizione: Neu. Fisiologia e reprodução em peixes | Elsayed A. M. Shokr | Taschenbuch | Portugiesisch | 2023 | Edições Nosso Conhecimento | EAN 9786205687154 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. Fisiologia e riproduzione nei pesci | Elsayed A. M. Shokr | Taschenbuch | Italienisch | 2023 | Edizioni Sapienza | EAN 9786205687109 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. Physiologie und Reproduktion bei Fischen | Elsayed A. M. Shokr | Taschenbuch | 156 S. | Deutsch | 2023 | Verlag Unser Wissen | EAN 9786205686911 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -All living species of fishes existing in the world at present, a wide variety of patterns of reproduction present as follow, uni-sexuality, bisexuality, hermaphroditism and parthenogenesis. Like other vertebrates, the fishes usually reproduce sexually and in a quite large number of them, spermatozoa and eggs are formed in separate individuals and the gametes are expelled in the water where fertilisation occur. To increase and standardise an efficient hatchery system for producing the young fish of good quality insufficient numbers of a given species, it is essential to know the details of its natural breeding. It involves the study of sexuality of a given fish, sexual dimorphism, reproductive cycle, time, season and place of reproduction. Also, fecundity, spawning pattern, parental care and larval life history. Reproductive physiology of fish (RPF) is a vast scientific field, which directly concerns a set of physiological processes essential for reproduction, beginning with egg fertilisation and ending with sexual behaviour and spawning. Processes include gonad differentiation, puberty, male and female gametogenesi, timing of reproductive cycles. 140 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -U wseh zhiwyh widow ryb, suschestwuüschih w mire w nastoqschee wremq, prisutstwuüt samye raznoobraznye zakonomernosti razmnozheniq, takie kak odnopolost', dwupolost', germafroditizm i partenogenez. Kak i drugie pozwonochnye, ryby obychno razmnozhaütsq polowym putem, i u dowol'no bol'shogo ih kolichestwa spermatozoidy i ikrinki obrazuütsq otdel'nymi osobqmi, a gamety wybrasywaütsq w wodu, gde proishodit oplodotworenie. Dlq uwelicheniq i standartizacii äffektiwnoj rybowodnoj sistemy dlq polucheniq mal'ka horoshego kachestwa w nedostatochnom kolichestwe dannogo wida neobhodimo znat' detali ego estestwennogo razwedeniq. On predpolagaet izuchenie sexual'nosti dannoj ryby, polowogo dimorfizma, reproduktiwnogo cikla, wremeni, sezona i mesta razmnozheniq. Krome togo, plodowitost', harakter neresta, roditel'skaq zabota i istoriq zhizni lichinok. Reproduktiwnaq fiziologiq ryb (RPF) ¿ obshirnaq nauchnaq oblast', kotoraq neposredstwenno kasaetsq sowokupnosti fiziologicheskih processow, neobhodimyh dlq razmnozheniq, nachinaq s oplodotworeniq ikry i zakanchiwaq polowym powedeniem i nerestom. Processy wklüchaüt differencirowku gonad, polowoe sozrewanie, muzhskoj i zhenskij gametogenez, sinhronizaciü reproduktiwnyh ciklow. 164 pp. Russisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The cells that make up the bodies of all but the simplest multicellular animals, both aquatic and terrestrial, exist in an 'internal sea' of extracellular fluid (ECF) enclosed within the integument of the animal. From this fluid, the cells take up O2 and nutrients; into it, they discharge metabolic waste products. The ECF is more dilute than present-day seawater, but its composition closely resembles that of the primordial oceans in which, presumably, all life originated. In animals with a closed vascular system, the ECF is divided into two components: the interstitial fluid and the circulating blood plasma. The plasma and the cellular elements of the blood, principally red blood cells, fill the vascular system, and together they constitute the total blood volume. The interstitial fluid is that part of the ECF that is outside the vascular system, bathing the cells. The special fluids considered together as transcellular fluids are discussed in the following text. About a third of the total body water is extracellular; the remaining two thirds is intracellular (intracellular fluid). 292 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - All living species of fishes existing in the world at present, a wide variety of patterns of reproduction present as follow, uni-sexuality, bisexuality, hermaphroditism and parthenogenesis. Like other vertebrates, the fishes usually reproduce sexually and in a quite large number of them, spermatozoa and eggs are formed in separate individuals and the gametes are expelled in the water where fertilisation occur. To increase and standardise an efficient hatchery system for producing the young fish of good quality insufficient numbers of a given species, it is essential to know the details of its natural breeding. It involves the study of sexuality of a given fish, sexual dimorphism, reproductive cycle, time, season and place of reproduction. Also, fecundity, spawning pattern, parental care and larval life history. Reproductive physiology of fish (RPF) is a vast scientific field, which directly concerns a set of physiological processes essential for reproduction, beginning with egg fertilisation and ending with sexual behaviour and spawning. Processes include gonad differentiation, puberty, male and female gametogenesi, timing of reproductive cycles.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: SHokr ElsayedDr. EL Sayed Ahmed Mohamed Shokr, prof. of Physiology in Faculty of Medicine, Hail University, KSA. Has worked as a lecturer, assistant and associate professor of Physiology and Medical Physiology in the Faculty of Medic.…

Paperback. Condizione: new. Paperback. A few fishes breed only once in their long life spawn eg. Pacific salmon . The fresh water eel breeds only once in 10-14 years . Most of the fishes breed in one season every year, they are called seasonal breeders, but some breed in all seasons, through out the year, and they are called year round spawners . - Seasonal breeders exhibit rhythmic changes in the structure and physiology of ovary and testes in different seasons. These changes are demarcated into five phases - 1. Resting phase (December - January) 2. Preparatory phase(February - April) 3. Maturing phase (may - June) 4. Spawning phase (July - September) 5. Post spawning phase(October - November) GONADOSOMATIC INDEX (GSI) - It is a ratio between body weight and the weight of gonad showing the status of ovary and testis in terms of maturity and denotes the phase of the reproductive cycle- GSI = Weight of the gonad 100 Weight of fish-weight of the gonad - GSI of fish increases with the maturation of the fish i.e. lowest during post spawning phase and highest at the peak of maturity i.e. spawning phase.FEMALE REPRODUCTIVE ORGAN - Unlike mammals, the female reproductive system of teleosts. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Todas las especies vivas de peces existentes en el mundo en la actualidad, presentan una amplia variedad de patrones de reproducción como sigue, uni-sexualidad, bisexualidad, hermafroditismo y partenogénesis. Al igual que otros vertebrados, los peces suelen reproducirse sexualmente y en un número bastante elevado de ellos, los espermatozoides y los óvulos se forman en individuos separados y los gametos son expulsados al agua donde se produce la fecundación. Para aumentar y estandarizar un sistema de criadero eficiente para producir alevines de buena calidad en cantidades insuficientes de una determinada especie, es fundamental conocer los detalles de su crianza natural. Implica el estudio de la sexualidad de un determinado pez, dimorfismo sexual, ciclo reproductivo, tiempo, estación y lugar de reproducción. Además, la fecundidad, el patrón de desove, el cuidado de los padres y la historia de vida de las larvas. La fisiología reproductiva de los peces (RPF) es un vasto campo científico que se relaciona directamente con un conjunto de procesos fisiológicos esenciales para la reproducción, comenzando con la fertilización del huevo y terminando con el comportamiento sexual y el desove. Los procesos incluyen la diferenciación de las gónadas, la pubertad, la gametogénesis masculina y femenina, la sincronización de los ciclos reproductivos. 152 pp. Spanisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 276 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -All living species of fishes existing in the world at present, a wide variety of patterns of reproduction present as follow, uni-sexuality, bisexuality, hermaphroditism and parthenogenesis. Like other vertebrates, the fishes usually reproduce sexually and in a quite large number of them, spermatozoa and eggs are formed in separate individuals and the gametes are expelled in the water where fertilisation occur. To increase and standardise an efficient hatchery system for producing the young fish of good quality insufficient numbers of a given species, it is essential to know the details of its natural breeding. It involves the study of sexuality of a given fish, sexual dimorphism, reproductive cycle, time, season and place of reproduction. Also, fecundity, spawning pattern, parental care and larval life history. Reproductive physiology of fish (RPF) is a vast scientific field, which directly concerns a set of physiological processes essential for reproduction, beginning with egg fertilisation and ending with sexual behaviour and spawning. Processes include gonad differentiation, puberty, male and female gametogenesi, timing of reproductive cycles.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 140 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - A few fishes breed only once in their long life spawn eg. Pacific salmon . The fresh water eel breeds only once in 10-14 years . Most of the fishes breed in one season every year , they are called seasonal breeders , but some breed in all seasons, through out the year , and they are called year round spawners . - Seasonal breeders exhibit rhythmic changes in the structure and physiology of ovary and testes in different seasons. These changes are demarcated into five phases - 1. Resting phase (December - January) 2. Preparatory phase(February - April) 3. Maturing phase (may - June) 4. Spawning phase (July - September) 5. Post spawning phase(October - November) GONADOSOMATIC INDEX (GSI) - It is a ratio between body weight and the weight of gonad showing the status of ovary and testis in terms of maturity and denotes the phase of the reproductive cycle- GSI = Weight of the gonad × 100 Weight of fish-weight of the gonad - GSI of fish increases with the maturation of the fish i.e. lowest during post spawning phase and highest at the peak of maturity i.e. spawning phase.FEMALE REPRODUCTIVE ORGAN - Unlike mammals , the female reproductive system of teleosts.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The cells that make up the bodies of all but the simplest multicellular animals, both aquatic and terrestrial, exist in an 'internal sea' of extracellular fluid (ECF) enclosed within the integument of the animal. From this fluid, the cells take up O2 and nutrients; into it, they discharge metabolic waste products. The ECF is more dilute than present-day seawater, but its composition closely resembles that of the primordial oceans in which, presumably, all life originated. In animals with a closed vascular system, the ECF is divided into two components: the interstitial fluid and the circulating blood plasma. The plasma and the cellular elements of the blood, principally red blood cells, fill the vascular system, and together they constitute the total blood volume. The interstitial fluid is that part of the ECF that is outside the vascular system, bathing the cells. The special fluids considered together as transcellular fluids are discussed in the following text. About a third of the total body water is extracellular; the remaining two thirds is intracellular (intracellular fluid).VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 292 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The cells that make up the bodies of all but the simplest multicellular animals, both aquatic and terrestrial, exist in an 'internal sea' of extracellular fluid (ECF) enclosed within the integument of the animal. From this fluid, the cells take up O2 and nutrients; into it, they discharge metabolic waste products. The ECF is more dilute than present-day seawater, but its composition closely resembles that of the primordial oceans in which, presumably, all life originated. In animals with a closed vascular system, the ECF is divided into two components: the interstitial fluid and the circulating blood plasma. The plasma and the cellular elements of the blood, principally red blood cells, fill the vascular system, and together they constitute the total blood volume. The interstitial fluid is that part of the ECF that is outside the vascular system, bathing the cells. The special fluids considered together as transcellular fluids are discussed in the following text. About a third of the total body water is extracellular; the remaining two thirds is intracellular (intracellular fluid).…