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Bacteriological Effects Of Xylitol And Different Carbohydrate Containing Diets In Swiss Albino Rats Inoculated With Streptococcus Mutans Ccug 6519, Fahi̇nur Ertuğrul, Rengi̇n Eltem, Bora A. Ataman Jan 2002

Bacteriological Effects Of Xylitol And Different Carbohydrate Containing Diets In Swiss Albino Rats Inoculated With Streptococcus Mutans Ccug 6519, Fahi̇nur Ertuğrul, Rengi̇n Eltem, Bora A. Ataman

Turkish Journal of Medical Sciences

The aim of the study was to investigate the bacteriological effects of different diets by Streptococcus mutans counts on 50 Swiss albino rats inoculated with Streptococcus mutans CCUG 6519 serotype c. A powdered form of standard basal diet meeting rats' nutritional needs was used in combination with diets containing different percentages of starch, sucrose and xylitol for 90 days. Dental plaque samples were collected at the end of the experiment and S. mutans and total bacterial counts were determined. S. mutans and total bacterial counts in plaque samples were the highest in the sucrose group and the differences were statistically …


Effects Of Some Dna Gyrase Inhibitors On The Survival And Development Of Pimpla Turionellae (Hymenoptera: Ichneumonidae) Larvae Reared On An Artificial Diet, Kemal Büyükgüzel Jan 2002

Effects Of Some Dna Gyrase Inhibitors On The Survival And Development Of Pimpla Turionellae (Hymenoptera: Ichneumonidae) Larvae Reared On An Artificial Diet, Kemal Büyükgüzel

Turkish Journal of Zoology

The effects of novobiocin, nalidixic and oxolinic acids, which are potent antibacterial agents, on the survival and development of the hymenopterous endoparasitoid Pimpla turionellae L. were investigated alone by rearing the larvae aseptically on chemically defined synthetic diets. The percentage of fifth instar larvae was not significantly affected by the diets with different levels of the antibiotics used in the study. A diet containing the lowest level of novobiocin significantly increased the yields of pupae and adults. This level also significantly shortened the developmental time for fifth instar, but had no significant effect on the complete development of the larvae …


Antimicrobial Agents: Their Combined Effects On Total Protein Content Of The Endoparasitoid Pimpla Turionellae L. (Hymenoptera: Ichneumonidae), Kemal Büyükgüzel Jan 2002

Antimicrobial Agents: Their Combined Effects On Total Protein Content Of The Endoparasitoid Pimpla Turionellae L. (Hymenoptera: Ichneumonidae), Kemal Büyükgüzel

Turkish Journal of Zoology

The effects of some antibiotics and antifungal agents in combination on the total protein content of young pupae of the hymenopterous endoparasitoid, Pimpla turionellae L., were investigated by rearing the larvae aseptically on chemically defined synthetic diets. These effects varied with the kinds and levels of the combination of antimicrobial agents in the diets. The combinations of antibiotics generally increased the total protein content according to their individual levels in the diets. Antifungal agent combinations caused a slight but significant increase in the total protein content. However, some tested combinations of nystatin with methyl p-hydroxybenzoate or cycloheximide significantly decreased the …


Prediction Of The Voluntary Intake And Digestibility Of Forage-Based Diets From Chemical Composition And Ruminal Degradation Characteristics, M. Aki̇f Karsli, James R. Russell Jan 2002

Prediction Of The Voluntary Intake And Digestibility Of Forage-Based Diets From Chemical Composition And Ruminal Degradation Characteristics, M. Aki̇f Karsli, James R. Russell

Turkish Journal of Veterinary & Animal Sciences

Two digestion experiments and an in situ nylon bag experiment were conducted to determine the correlations between chemical composition, ruminal in situ degradation kinetics and OMI, and OM and CP digestibilities of diets in wethers fed forages of varying nutritive value without and with protein supplementation. Wethers were fed ground corn crop residues, oat-berseem clover or alfalfa hay in the first experiment, ground corn crop residues with or without alfalfa or oat-berseem clover hay supplemented with SBM and grain corn mixture to meet the DIP requirement, by using level 1 of the Nutrient Requirements of Beef Cattle computer program at …


Cover And Contents Jan 2002

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2002

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Maternal Serum Vitamin D Levels In The Third Trimester Of Pregnancy, İsmai̇l Pehli̇van, Şükrü Hatun, Meti̇n Aydoğan, Kadi̇r Babaoğlu, Gülcan Türker, Ayşe Sevi̇m Gökalp Jan 2002

Maternal Serum Vitamin D Levels In The Third Trimester Of Pregnancy, İsmai̇l Pehli̇van, Şükrü Hatun, Meti̇n Aydoğan, Kadi̇r Babaoğlu, Gülcan Türker, Ayşe Sevi̇m Gökalp

Turkish Journal of Medical Sciences

Aim: To measure serum vitamin D levels of pregnant women in the last trimester and to determine factors affecting serum levels. Methods: Seventy-eight pregnant women, 19-39 years old and having their third trimester between March and May 2000, were enrolled. Serum Ca, P and alkaline phosphatase and 25-hydroxyvitamin D_3 levels were measured in venous blood samples during the third trimester. Maternal age, education, socioeconomic status, number of gravida, nutrition, dressing habits and daily exposure time to sunlight were determined and their correlation with serum vitamin D levels were analyzed statistically. Results: The mean age of mothers was 26.1±5.1 years. The …


Cover And Contents Jan 2002

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2002

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2002

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Accumulation Of Lead In The Gill, Liver, Kidney And Brain Tissues Of Tilapia Zilli, Sahi̇re Karataş, Mustafa Kalay Jan 2002

Accumulation Of Lead In The Gill, Liver, Kidney And Brain Tissues Of Tilapia Zilli, Sahi̇re Karataş, Mustafa Kalay

Turkish Journal of Veterinary & Animal Sciences

In this study, the accumulation of lead in various tissues of Tilapia zilli was tested at varying concentrations of lead in the medium for different exposure times. Experimental animals were exposed to 1.0, 2.5 and 5.0 ppm lead over periods of 1, 7, 15 and 30 days and accumulation of lead in gill, liver, kidney and brain tissues was determined by atomic absorbtion spectrophotometry (AAS). In general, the accumulation of lead in tissues increased with increasing concentrations of lead in the experimental medium and with increasing time of experiment. The ratios of total lead in the tissues were 15.47, 6.10, …


Comparison Of Muscle Fatty Acids Of Three Trout Species (Salvelinus Alpinus, Salmo Trutta Fario, Oncorhynchus Mykiss) Raised Under The Same Conditions, H. İbrahi̇m Hali̇loğlu, N. Mevlüt Aras, Hasan Yeti̇m Jan 2002

Comparison Of Muscle Fatty Acids Of Three Trout Species (Salvelinus Alpinus, Salmo Trutta Fario, Oncorhynchus Mykiss) Raised Under The Same Conditions, H. İbrahi̇m Hali̇loğlu, N. Mevlüt Aras, Hasan Yeti̇m

Turkish Journal of Veterinary & Animal Sciences

During recent decades, the study of fatty acids (FAs) belonging to the n-3 family in seafood has intensified due to their beneficial effect on cardiovascular disease. This study was undertaken to determine the FA composition of muscle lipids of three different farm raised trouts (Salvelinus alpinus, Salmo trutta fario and Oncorhynchus mykiss) fed the same diet and raised under the same conditions. Palmitic acid (16:0) in total saturated fatty acid (SFA) and oleic acid (18:1 n-9) in monounsaturated fatty acid (MUFA) were the most abundant FAs and significant differences (P < 0.05) were observed between fish species. The differences in total SFA among the trouts were significant (P < 0.01), and O. mykiss had the highest (31.92%) SFA content while S. trutta fario showed the lowest in their edible muscle tissue. However, there was a significantly (P < 0.01) opposite observation for MUFA among the trouts, in which S. trutta fario had the highest content (41.90%) of MUFA in their muscle tissue while O. mykiss had the lowest (30.81%). The differences for the polyunsaturated fatty acid (PUFA) content among the species were not significant (P > 0.05). O. mykiss had the highest n-3 PUFA (22.41%) while …


The Low Above-Zero Temperature Effect In The Zone Of Roots On Nitrate Reductase Activity In Pea Organs In The Process Of Vegetating, G. G. Vasilieva, N. V. Mironova, A. K. Glyanko Jan 2001

The Low Above-Zero Temperature Effect In The Zone Of Roots On Nitrate Reductase Activity In Pea Organs In The Process Of Vegetating, G. G. Vasilieva, N. V. Mironova, A. K. Glyanko

Turkish Journal of Botany

Experiments with pea (Pisum sativum L.) cv. Marat) in a phytotron chamber showed that the process of nitrate assimilation in pea organs depends on temperature in the zone of the roots and on the phase of development of the plants. The potential of tissues of different organs for nitrate reduction was compared to the amount of nitrates which they accumalated. A decrease in nitrate reductase activity during certain phases of development is assumed to be related to the process of formation and functioning of nodules.


The Effects Of Different Mineral Nutrients On The Levels Of Cytokinins In Maize (Zea Mays L.), Peyami̇ Battal, Beki̇r Ti̇lekli̇oğlu Jan 2001

The Effects Of Different Mineral Nutrients On The Levels Of Cytokinins In Maize (Zea Mays L.), Peyami̇ Battal, Beki̇r Ti̇lekli̇oğlu

Turkish Journal of Botany

In this study, Z (trans-Zeatin) and ZR (trans-Zeatin Riboside) levels in the roots, stems, leaves, flowers and fruits of maize plants (Zea mays L.) were determined using high performance liquid chromatography (HPLC). Plants were grown in media containing macro elements (nitrogen, phosphorus, potassium, calcium, magnesium, sulphur and iron) in optimum, deficient and excess concentrations. According to the average Z values for all periods, the highest Z levels were determined in the roots of plants treated with excessive P (-P); in stems, female flowers treated with excessive K (-K) and in leaves and kernels treated with excessive Ca (-Ca). The highest …


Dietary Carbohydrate Level Influencing Feed Intake, Nutrient Utilisation And Plasma Glucose Concentration In The Rainbow Trout, Oncorhynchus Mykiss, Ahmet Adem Teki̇nay, Simon John Davies Jan 2001

Dietary Carbohydrate Level Influencing Feed Intake, Nutrient Utilisation And Plasma Glucose Concentration In The Rainbow Trout, Oncorhynchus Mykiss, Ahmet Adem Teki̇nay, Simon John Davies

Turkish Journal of Veterinary & Animal Sciences

A twelve-week nutrition trial was carried out to evaluate the efficacy of different carbohydrate levels on digestibility, feed intake, growth performance, carcass and muscle composition and plasma glucose level in the rainbow trout, Oncorhynchus mykiss. Three test diets were formulated using extruded wheat meal (15.3, 32.2 and 43.5%) as the carbohydrate source and fed rainbow trout (Initial Body Weight: 33.8 ± 0.46 g.). These were either restricted: LCR (Low Carbohydrate Restricted), MCR (Medium-Carbohydrate-Restricted) and HCR (High-Carbohydrate Restricted); or satiation: LCS (Low-Carbohydrate Satiation), MCS (Medium-Carbohydrate Satiation) and HCS (High-Carbohydrate Satiation) respectively. The aim of applying different feeding regimes was to quantify …


Response Of Popcorn (Zea Mays Everta) To Nitrogen Rates And Plant Densities, Sabri̇ Gökmen, Özer Sencar, Mehmet Ali̇ Saki̇n Jan 2001

Response Of Popcorn (Zea Mays Everta) To Nitrogen Rates And Plant Densities, Sabri̇ Gökmen, Özer Sencar, Mehmet Ali̇ Saki̇n

Turkish Journal of Agriculture and Forestry

The objective of this study was to evaluate grain yield and yield components of popcorn with different nitrogen rates and plant densities. Field studies were conducted in 1995 and 1996 at Kazova Plain in Tokat. The experiment was designed in a randomized-complete-block design with a split-plot arrangement with three replications. The treatments comprised six levels of nitrogen (0, 50, 100, 150, 200 and 250 kg N /ha) and four plant densities (5.7, 7.0, 9.5 and 14.0 plants /m^2). Nitrogen rates were in the main plots, and planting densities were in the sub-plots. An open pollinated was used as the material …


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.


Effects Of High Dietary Protein And High Energy Density On Gastric Evacuation And Return Of Appetite In The Rainbow Trout, Oncorhynchus Mykiss, Ahmet Adem Teki̇nay, Yusuf Güner Jan 2001

Effects Of High Dietary Protein And High Energy Density On Gastric Evacuation And Return Of Appetite In The Rainbow Trout, Oncorhynchus Mykiss, Ahmet Adem Teki̇nay, Yusuf Güner

Turkish Journal of Biology

Rainbow trout (Oncorhynchus mykiss) were fed diets containing three different concentrations of crude protein (56.3%, 51.7% and 45.8%) and digestible energy (21.3, 20.3 and 18.8 MJ/kg), and the effects of dietary protein and energy level on gastric evacuation and return of appetite times were investigated. Gastric evacuation determinations were achieved by slaughtering 8 fish every 6 hours until no residue was found in the cardiac stomach of fish. Return of appetite experiments were conducted by re-feeding groups of trout every 4 or 6 hours following the first feeding. The data obtained from each process was modelled by regression analysis and …


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Production Of Single-Cell Protein From Ram Horn Hydrolysate, Esabi̇ Başaran Kurbanoğlu Jan 2001

Production Of Single-Cell Protein From Ram Horn Hydrolysate, Esabi̇ Başaran Kurbanoğlu

Turkish Journal of Biology

Candida utilis NRRL Y-900 was grown on horn hydrolysate for single-cell protein production. First, ram horns obtained from slaughterhouse in Erzurum were hydrolyzed by physical and chemical methods and crude horn hydrolysate (CHH) was obtained. The contents of protein, nitrogen, ash, some minerals, total sugars and amino acids of CHH were determined and it was seen that it has sufficient organic and inorganic materials to allow its use as a substrate source in the production of single-cell protein. The CHH was enriched by addition of yeast extract, glucose and KH_2PO_4. The effects of different CHH concentrations (1, 2, 3, 4, …


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Perioperative Oral Supplement With Immunonutrients In Gastrointestinal Cancer Patients, Ni̇hal Zeki̇ye Erdem, İ. Hakan Kulaçoğlu, Mehtap Akci̇l Temel, Ahmet Çinar Yasti, Nuri̇ Aydin Kama, Nazan Bozkurt Jan 2001

Perioperative Oral Supplement With Immunonutrients In Gastrointestinal Cancer Patients, Ni̇hal Zeki̇ye Erdem, İ. Hakan Kulaçoğlu, Mehtap Akci̇l Temel, Ahmet Çinar Yasti, Nuri̇ Aydin Kama, Nazan Bozkurt

Turkish Journal of Medical Sciences

Significant benefits have been gained with pre or peri-operative nutritional support in surgical patients with malnutrition. Recent studies have also shown that some enteral formulas including certain nutrients like glutamine could provide more benefit than the standard formulas. In this prospective-randomized study, the effects of perioperative oral supplement with enteral formulas containing glutamine in comparison with a standard enteral formula in patients who were operated on for GI malignancies were examined. Thirty-two patients were divided into two groups: the study group was given oral supplement with an elemental diet (Alitraq®) for 7 days preoperatively and 10 days postoperatively as 30-35% …


Effect Of Boron Application On The Yield And Quality Of Sugar Beet, Sai̇t Gezgi̇n, Mehmet Hamurcu, Mustafa Apaydin Jan 2001

Effect Of Boron Application On The Yield And Quality Of Sugar Beet, Sai̇t Gezgi̇n, Mehmet Hamurcu, Mustafa Apaydin

Turkish Journal of Agriculture and Forestry

This research was conducted to determine the effects of application methods and the levels of boron on the root yield and quality of sugar beet in the Konya-Altınekin plain. The experimental soil was sandy loam, poor in organic matter and rich in calcium carbonate. The soil was alkaline in reaction and sufficient in boron content (0.55 ppm). In this work, three different levels of boron in borax form (0, 0.3 and 0.6 kg B/da) were applied with five different methods (soil, leaf, seed, soil + leaf, seed + leaf). The results showed that the root yield and refined sugar yield …


Determination Of The Mineral Levels Of Feedstuffs In The Marmara Region And Their Relation To Nutritional Disorders In Sheep, Müjdat Alp, Recep Kahraman, Neşe Kocabağli, Dervi̇ş Özçeli̇k, Mustafa Eren, İsmet Türkmen, Meli̇h Yavuz, Şefi̇k Dursun Jan 2001

Determination Of The Mineral Levels Of Feedstuffs In The Marmara Region And Their Relation To Nutritional Disorders In Sheep, Müjdat Alp, Recep Kahraman, Neşe Kocabağli, Dervi̇ş Özçeli̇k, Mustafa Eren, İsmet Türkmen, Meli̇h Yavuz, Şefi̇k Dursun

Turkish Journal of Veterinary & Animal Sciences

This study was carried out in the Marmara region, which is known as one of the regions where animal husbandry is most developed in Turkey. The aim of the study was to determine and collect data on the mineral contents of forages and feedstuffs that are harvested and used in animal nutrition in the region. A further aim was to determine the blood mineral levels of sheep in order to gain information on the mineral insufficiency and/or excess mineral levels in sheep, which are fed mainly with these feedstuffs. Fifty-five different locations in 11 provinces within the whole of the …


Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.


Blood Serum Concentrations Of Selenium And Glutathione Peroxidase Activity In Akkaraman Sheep, Taner Pamukçu, Tevhi̇de Sel, Gül Yarim Jan 2001

Blood Serum Concentrations Of Selenium And Glutathione Peroxidase Activity In Akkaraman Sheep, Taner Pamukçu, Tevhi̇de Sel, Gül Yarim

Turkish Journal of Veterinary & Animal Sciences

Selenium and other essential elements play an important role in animal husbandry. These elements help to minimize infectious diseases, reduce concomitant stresses and bring about optimal productive and reproductive performance. The mean serum selenium concentration of the sheep sampled in this study was 303.65 ng/ml. Such values are considered to be indicative of adequate dietary supplementation. Serum glutathione peroxidase activity in the sheep sampled in this study was also analysed, and the mean glutathione peroxidase activity was 3.65 nmolNADPH+H+/min/mg protein. It is recommended that producers monitor the selenium in serum in order to maintain adequate nutrition and performance in sheep.