Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
Investigation Of Some Biological Characteristics Of The Silver Crucian Carp, Carassius Gibelio (Bloch 1782) Population In Lake Eğirdir, İsmet Balik, Remzi̇ye Özkök, Hidir Çubuk, Rahmi̇ Uysal
Investigation Of Some Biological Characteristics Of The Silver Crucian Carp, Carassius Gibelio (Bloch 1782) Population In Lake Eğirdir, İsmet Balik, Remzi̇ye Özkök, Hidir Çubuk, Rahmi̇ Uysal
Turkish Journal of Zoology
Biological characteristics such as sex, age and length compositions, growth, condition factor, reproduction, mortality and exploitation rates of the silver crucian carp, Carassius gibelio (Bloch 1782), population in Lake Eğirdir were investigated between March 2001 and February 2002. According to the 616 specimens ranged in age groups from I to VI, the percentages of male and female individuals in the population were 53.4% and 46.6%, respectively. The fork lengths of the samples ranged from 9 to 33 cm. Allometric growth was also determined among the lengths and weights of both sexes. Incremental growth rates in length and weight for both …
Effects Of Different Diets On The Growth Performance, Gonad Development And Body Composition At First Sexual Maturity Of Rainbow Trout (Oncorhynchus Mykiss), Devri̇m Memi̇ş, Hüseyi̇n Gün
Effects Of Different Diets On The Growth Performance, Gonad Development And Body Composition At First Sexual Maturity Of Rainbow Trout (Oncorhynchus Mykiss), Devri̇m Memi̇ş, Hüseyi̇n Gün
Turkish Journal of Veterinary & Animal Sciences
Rainbow trout Oncorhynchus mykiss with an initial mean weight of 174 g (1+ year old) were fed on 3 different commercial diets (1 extruded pellet and 2 steam pellet) in the same environmental conditions until their first spawning. Changes in growth performance (weight gain, condition factor, specific growth rate and feed conversion rate), gonadosomatic index (GSI), hepatosomatic index (HSI) and body composition (protein, lipid, ash and dry matter) were investigated. The mean weight gain and condition factor for fish fed the extruded diet was significantly greater than for those fed the steam pellet diets (P < 0.05 ). There were no significant differences in specific growth rate, mean length increments and feed conversion rate among the groups, although the feed conversion rate for the extruded diet was slightly lower than the others. The HSI of the group fed an extruded diet was significantly greater than those of the others ( P < 0.05 ). The GSI values of female and male fish at the end of the study (October) did not differ significantly among the groups. Similarly, diet had no significant effects on the muscle composition of the trial fish, except that the muscle lipid of the group fed the extruded diet was significantly higher than those of the other groups (P < 0.05).
Growth And Milk Yield Traits Of Türkgeldi Sheep, Muhi̇tti̇n Özder, Mustafa Kaymakçi, Turgay Taşkin, Ertan Köycü, Fevzi̇ Karaağaç, Reşi̇t Sönmez
Growth And Milk Yield Traits Of Türkgeldi Sheep, Muhi̇tti̇n Özder, Mustafa Kaymakçi, Turgay Taşkin, Ertan Köycü, Fevzi̇ Karaağaç, Reşi̇t Sönmez
Turkish Journal of Veterinary & Animal Sciences
This study was conducted from data from 3 years of research performed at the Türkgeldi State Farm in 1997-2000. A total of 1053 Türkgeldi Pro-type B_1 Tahirova x Kıvırcık sheep including mature and young individuals were used as the study material. Litter size and fecundity were 1.42 and 1.51, respectively. The averages of birth weights and weaning weights were 3.43 and 20.04 kg, respectively. The average lactation milk yield was 100.62 kg, and the lactation period was 174.90 days. The levels of milk fat, protein, dry matter, ash and casein were 7.36%, 5.28%, 18.72%, 0.98% and 4.37%, respectively.
Effects Of Spatially Localized And Dispersed Patterns Of Feed Distribution On The Growth, Size Dispersion And Feed Conversion Ratio Of The African Catfish (Clarias Gariepinus), Feri̇t Rad, Gülderen Kurt, A. Sezai̇ Bozaoğlu
Effects Of Spatially Localized And Dispersed Patterns Of Feed Distribution On The Growth, Size Dispersion And Feed Conversion Ratio Of The African Catfish (Clarias Gariepinus), Feri̇t Rad, Gülderen Kurt, A. Sezai̇ Bozaoğlu
Turkish Journal of Veterinary & Animal Sciences
The effects of spatially localized and spatially dispersed feeding patterns on the growth, size distribution and feed conversion ratio of the African catfish were investigated. Two groups of fish with an initial weight of 82.16 ± 4.80 and 82.40 ± 3.90 g were subjected to point source and scatter feeding patterns, respectively, for 2 months. Scatter fed fish reached a final mean weight of 192.69 ± 6.60 g while the mean final weight of point source fed fish was 169.67 ± 6.80 g ( P < 0.05). The specific growth rates of scatter and point source fed fish were 1.51% day^{-1} and 1.29% day^{-1}, respectively. The feed conversion ratio of scatter fed fish was 1.86 and that of point source fed fish was 2.29. The difference between the coefficient of size variation for scatter and point source fed fish was statistically insignificant (P > 0.05). However, the final size distribution curve for the scatter fed group showed a more …
The Structure, Mortality And Growth Of The Tench [Tinca Tinca (L., 1758)] Population In Çivril Lake, Denizli, Turkey, Süleyman Balik, Hasan M. Sari, Mustafa Ruşen Ustaoğlu, Ali̇ İlhan
The Structure, Mortality And Growth Of The Tench [Tinca Tinca (L., 1758)] Population In Çivril Lake, Denizli, Turkey, Süleyman Balik, Hasan M. Sari, Mustafa Ruşen Ustaoğlu, Ali̇ İlhan
Turkish Journal of Veterinary & Animal Sciences
The population structure, mortality and growth of the tench [Tinca tinca (L., 1758)] in Çivril Lake was investigated, using 506 fish caught with various gill nets between February 1998 and January 1999. The percentages of females and males in the population were 38.34% and 61.66%, respectively, and the overall female-male sex ratio was 1:1.61. Specimens ranged from 11.4 to 28.8 cm in fork length, and from 27.7 to 420.4 g in weight. The age distribution was I-V in the population. For all individuals, the length-weight relation and von Bertalanffy growth parameters were W = 0.018 L^{3.01}, and L_{\infity} = 33.85 …
Influence Of Some Plant Extracts And Microbioagents On Some Physiological Traits Of Faba Bean Infected With Botrytis Fabae, Yehia A.G. Mahmoud, Mohsen Ebrahim, Magda M. Aly
Influence Of Some Plant Extracts And Microbioagents On Some Physiological Traits Of Faba Bean Infected With Botrytis Fabae, Yehia A.G. Mahmoud, Mohsen Ebrahim, Magda M. Aly
Turkish Journal of Botany
Laboratory and greenhouse experiments were conducted to assess the efficacy of Eucalyptus citriodora Hook., Ipomoea carnea Jacq., Cuminum cyminum L., Allium sativum L. and Hyoscyamus muticus L. leaf extracts, and of Streptomyces exfoliatus (Waksman & Curtis) Waksman & Henrici (S) and Trichoderma harzianum Rifai (T) in controlling Botrytis fabae, which causes chocolate spot disease in the faba bean. Laboratory studies supported the use of leaf extracts of E. citriodora (Ex. 1) and I. carnea (Ex. 2) in preference to other extracts for controlling the mycelial growth of B. fabae. In addition, the mixture S + T was the best of …
Age, Growth And Reproduction Of Tub Gurnard (Chelidonichthys Lucerna L. 1758) In The Bay Of İskenderun In The Eastern Mediterranean, Ali̇ İşmen, Pinar İşmen, Nuri̇ Başusta
Age, Growth And Reproduction Of Tub Gurnard (Chelidonichthys Lucerna L. 1758) In The Bay Of İskenderun In The Eastern Mediterranean, Ali̇ İşmen, Pinar İşmen, Nuri̇ Başusta
Turkish Journal of Veterinary & Animal Sciences
The age composition, growth parameters, spawning season, sex ratio, length at first sexual maturity and fecundity of tub gurnard (Chelidonichthys lucerna) caught from the Bay of İskenderun in the eastern Mediterranean Sea were investigated. Females and males made up 58.2% and 41.8%, respectively, of the particular population of the species. The total length of females ranged from 8.0 cm to 30.3 cm, and of males from 8.3 cm to 21.2 cm. The length (L) - weight (W) relationships for males and females were estimated as W = 0.0089*L^{3.01} and W = 0.0095*L^{2.99}, respectively. The age data derived from otolith readings …
Some Biological Properties Of Mosquitofish Populations (Gambusia Affinis) Living In Inland Waters Of The Western Mediterranean Region Of Turkey, Şükrü Öztürk, Ramazan İki̇z
Some Biological Properties Of Mosquitofish Populations (Gambusia Affinis) Living In Inland Waters Of The Western Mediterranean Region Of Turkey, Şükrü Öztürk, Ramazan İki̇z
Turkish Journal of Veterinary & Animal Sciences
Gambusia affinis, Baird & Girard, 1853, originally comes from North America and has been distributed all over the world for the biological control of mosquitoes. This study aimed to determine some biological properties, such as structure, age, growth and reproduction of the populations of G. affinis in Turkey. For this purpose, between November 1998 and October 1999, 2026 mosquitofish were caught in the wetlands of Fethiye-Akgöl, Dalaman and Ortaca in Muğla province in the western Mediterranean region of Turkey and the data found were compared. In the Fethiye-Akgöl population the percentage of the 0+ age group was 97.59%, and of …
Growth Properties Of Pikeperch (Sander Lucioperca (L., 1758)) Living In Hirfanlı Dam Lake, Özlem Ablak, Mehmet Yilmaz
Growth Properties Of Pikeperch (Sander Lucioperca (L., 1758)) Living In Hirfanlı Dam Lake, Özlem Ablak, Mehmet Yilmaz
Turkish Journal of Veterinary & Animal Sciences
This study concerns an investigation of the growth properties of Sander lucioperca (L., 1758) living in Hirfanlı dam constructed on the Kızılırmak river. It was observed that 326 pikeperch (Sander lucioperca (L., 1758)) caught between August 1996 and July 1997 ranged between I and V years of age. The fork length and weight of the population were 105-529 mm and 12-1520 g. The length (L)-weight (W) relation and the condition factor were W = 0.00001049 L^{3.07} and 0.986, respectively.
The Effect Of Dietary Oils Of Vegetable Origin On The Performance, Body Composition And Fatty Acid Profiles Of Sea Bass (Dicentrarchus Labrax L., 1758) Juveniles, Mustafa Yildiz, Erdal Şener
The Effect Of Dietary Oils Of Vegetable Origin On The Performance, Body Composition And Fatty Acid Profiles Of Sea Bass (Dicentrarchus Labrax L., 1758) Juveniles, Mustafa Yildiz, Erdal Şener
Turkish Journal of Veterinary & Animal Sciences
Body fat composition and growth performance of sea bass juveniles fed with different kinds of vegetable oils instead of fish oil were studied. Feeding trials were carried out with 600 sea bass (Dicentrarchus labrax L.) juveniles with on initial live weight of 7.58 ± 0.13 g. Experimental feeds contained fish oil, soybean oil, sunflower oil, corn oil and olive oil. In the chemical analyses of the experimental feeds, total crude fat was 12.33 ± 0.24% and total crude protein was 57.42 ± 0.31%. According to fatty acid analyses EPA (7.57%) and DHA (11.91%) in the feed containing fish oil, linolenic …
A Comparative Study On The Growth And Survival Characteristics Of Lambs Produced By The Transfer Of In Vitro Produced (Ivp) Embryos, Şebnem Çörekçi̇, Alper Yilmaz, Sema Bi̇rler, Serhat Papuççuoğlu, Hatem Atalla
A Comparative Study On The Growth And Survival Characteristics Of Lambs Produced By The Transfer Of In Vitro Produced (Ivp) Embryos, Şebnem Çörekçi̇, Alper Yilmaz, Sema Bi̇rler, Serhat Papuççuoğlu, Hatem Atalla
Turkish Journal of Veterinary & Animal Sciences
This study was carried out to determine the growth, survival rate and some body measurements until weaning of lambs produced by the in vitro production (IVP) method in comparison with those of lambs produced by artificial insemination. The lambs in the experimental group were produced by the transfer of IVP embryos developed to the blastocyst stage after the in vitro maturation and fertilisation of oocytes obtained from the ovaries of slaughtered ewes. The results of this study showed that the lambs produced by the IVP technique had a higher growth rate until weaning than did the lambs in the control …
Growth Properties Of Mirror Carp (Cyprinus Carpio L., 1758) Introduced Into Gelingüllü Dam Lake, Şeri̇fe Gülsün Kirankaya, Fi̇tnat Güler Ekmekçi̇
Growth Properties Of Mirror Carp (Cyprinus Carpio L., 1758) Introduced Into Gelingüllü Dam Lake, Şeri̇fe Gülsün Kirankaya, Fi̇tnat Güler Ekmekçi̇
Turkish Journal of Veterinary & Animal Sciences
Some growth properties of 407 specimens of the mirror carp population introduced into Gelingüllü Dam Lake between 1998 and 2000 were studied in order to determine changes in growth over time. The data obtained were compared with those of other populations of the same species in other regions of Turkey. The age of the mirror carp in Gelingüllü Dam Lake ranged between I and V. The results revealed that this species, having a length of 20.8 ± 0.8 cm and a weight of 229 ± 21 g at age I, may attain a length of 53.5 ± 3.8 cm and …