Erdal Matur

• Professor
• Istanbul University

The effects of the Saccharomyces cerevisiae extract on some organ, liver, and pancreatic digestive enzymes in breeder hens fed on aflatoxin (AF)-contaminated feed were investigated. Forty-eight 58-wk-old Ross 308 breeder hens were used. The hens were fed diets containing 0 or 100 µg of AF/kg and 0 or 1 g of S. cerevisiae/kg in a 2×2 factorial arran...

The study was conducted to investigate the efficacy of Saccharomyces cerevisiae extract (SC) on haematological parameters, immune function, and the antioxidant defence system in breeder hens fed a diet contaminated with low level aflatoxin (AF). Forty-eight Ross 308 breeder hens were fed on diets containing AF (0 or 100 µg/kg) and SC (0 or 1 g/kg)...

Some supporters of religious slaughter methods claim that efficiency of bleed-out is adversely affected by stunning. Our previous study carried out in sheep at an abattoir comparing the Muslim method of slaughter without stunning with pre-slaughter stunning using a captive bolt or by electrical methods concluded that bleed-out is not adversely affe...

UK legislation requiring pre-slaughter stunning has certain exemptions for religious slaughter. Supporters of both Muslim (Halal) and Jewish (Shechita) slaughter methods claim that the efficiency of the bleed out is adversely affected by stunning. In this study, electrical stunning followed by neck cutting, and captive bolt stunning followed by nec...

Background This study was designed to investigate the effects of different housing systems on production performance, egg quality and welfare in laying hens. Methods One hundred and twenty 42‐week‐old “Atak S” laying hens, purchased from a manufacturing company, were randomly assigned to 4 housing systems: conventional cages, furnished cages, deep...

Background Understanding the nature of inflammatory responses in cats with bacterial and viral infections is essential for accurately managing the infection. This study aimed to investigate the diversities of inflammatory responses between bacterial and viral infections in cats to figure out their role in the pathophysiology of these infections. M...

1. This study investigated the effects of different housing systems on oxidative defence mechanisms, heterophil functions, cellular immune response and cytokine production in laying hens. One hundred and twenty laying hens were allocated into one of four groups: conventional cages, furnished cages, deep litter, and free range.2. Housing system did...

The aim of this study was to investigate the dose-dependent adverse effects of long-term dietary lithium administration on specific aspects of the defense system in rats. Additionally, the study aimed to explore the inflammatory activities of lithium beyond its recognized anti-inflammatory properties. Forty Wistar Albino rats were involved, which w...

Lithium (Li) is a mood-stabilizing drug. Although one of the potential mechanisms underlying the neuroprotective effects of lithium is related to its antioxidative effect, its mechanisms of action are not fully understood. Herein we aimed to investigate the impact of varied dosages of long-term lithium therapy on oxidative stress parameters in the...

Honey bees (Apis mellifera) collect nectar and pollen using an area of approximately 5 km in diameter. At the same time, they actually take biological samples from thousands of points of this land. Therefore, honey samples can be used as an important biomarker to detect environmental pollution. Because the content of honey also reflects the quality...

Objectives The aim of this study was to investigate the use of procalcitonin (PCT) as a biomarker in differentiating bacterial infections from viral infections in cats. In addition, the relationship between PCT and mortality rate was also examined. Methods Forty-five cats were included in the study. The cats were categorised into two groups: bacte...

The aim of this study was to modify the flow cytometric method, which is used for analyzing neutrophils, to analyse the functions of avian heterophils. The blood samples used in the experiments were obtained from hens in slaughterhouses. Blood samples were collected from 10 hens for each trial. Within the scope of the present study, trials were car...

The objective of the study is to investigate the effects of ketamine and propofol on cytokines, antioxidant defense system, and neutrophil functions in dogs. A total of 24 dogs were used. Dogs were divided into two groups as ketamine and propofol. The ketamine group received ketamine (5 mg/kg) intravenously while the propofol group received propofo...

In the study, effects of dietary supplementations with flaxseed oil and sunflower oil on production performance , egg quality, and the eggs' sensory attributes in laying hens exposed to high stocking density stress were investigated. A total of one hundred and forty-four 38-week-old "Atak-S" breed laying hens were used. The hens were divided into t...

This study aims to investigate the impact of stocking density stress on heterophil functions, T cells, inflammatory cytokine levels, and antioxidant defence mechanisms. In addition, we aimed to investigate the potential protective effects of flaxseed and sunflower oil supplementations against stocking density stress in laying hens. One hundred and...

The study aims to investigate the effects of dietary supplementation of thyme on the antioxidant defence mechanisms, immune system, inflammatory cytokines, and production performance and egg quality traits in laying hens. A total of 120, 24-week-old Lohmann-Brown-Classic laying hens were used in this study. The experimental groups were fed on a rat...

The aim of this study is to investigate the usability of serum procalcitonin level in dogs as a clinical biomarker for the distinction between bacterial, viral, and parasitic diseases. A total of 160 dogs were used. The animals were evaluated in four groups as control and those with bacterial, viral, and parasitic infections. Serum procalcitonin, t...

In this study, effects of dietary supplementation of dried tomato powder (DTP) and red pepper powder (DPP) on the antioxidant mechanisms, immune system, cytokines, egg production performance, and egg quality were investigated in a total of 90, 30-week-old hens. The study groups were fed on a diet containing 4% DTP and 4% DPP, respectively for 30 da...

Some supporters of religious slaughter methods claim that efficiency of bleed-out is adversely affected by stunning. Our previous study carried out in sheep at an abattoir comparing the Muslim method of slaughter without stunning with pre-slaughter stunning using a captive bolt or by electrical methods concluded that bleed-out is not adversely affe...

Platelet production increases in anemic people. In particular, iron deficiency causes reactive thrombocytosis in such patients. Although anemia and iron deficiency are frequently seen in dogs, there are no published studies on this subject. The aim of the present study was to investigate the relationship between anemia, iron deficiency, and platele...

The aim of the study is to investigate whether housing laying hens in furnished cages in post-stress adaptation period causes any changes in behaviors or not. Due to the affects of animal welfare on production performance, the relationship between behavioral changes and egg production has also been studied. In the present study, 22 weeks old, 32 la...

elleborus orientalis Lam., a member of the family Ranunculaceae, is one of the medical plants, which is naturally grown in Turkey flora. Roots of Helleborus orientalis are used for the treatment of farm animals by implanting subcutaneously in the public. This study was planned to investigate the histopathological changes in liver, heart and skin of...

Kangal Shepherd Dog is one of the endemic large dog breeds in Anatolia, Turkey. It is bred in different regions of Turkey as well as in different countries as a livestock guarding dog (LGD). Being one of the most popular and common LGD breeds, basic behavioural traits and the effectiveness of Kangals have been subjected to several studies. However,...

Procalcitonin is the precursor of calcitonin hormone, produced by C cells of thyroid gland in physiological conditions. It is also produced in parenchymal cells of many tissues and leukocytes in pathological situations. In the normal condition, procalcitonin is converted by specific enzymes to the calcitonin. Therefore, it is amount in circulation...

Dirofilaria immitis is an important nematode of dogs and cats which causes fatal heartworm disease in their hosts. The aim of this study was to investigate the prevalence of D. immitis by serologic and molecular methods in shelter dogs, in the Thrace Region of Turkey. Blood samples were collected from 402 dogs in shelters which were located in four...

The aim of the study was to examine the effects of cage furnishing and social stress on some lymphoid organ weight and innate, cell-mediated, and humoral immune responses in laying hens. Sixty-four chickens were used. The chickens were divided into 2 groups; one of the groups was reared in furnished cages (RFC) and the other was reared in conventio...

The effects of environmental enrichment and transport stress on the immune system were investigated in laying hens. A total of 48 1-day-old chickens were used, half of the chickens were reared in conventional cages (RCC) and the rest in enriched cages (REC). Transport stress was applied in the 17th week. Liver weight decreased, spleen and bursa of...

Noise is a widespread stress resource that may lead to detrimental effects on the health. However, the molecular basis of the stress response caused by noise remains elusive. We have studied the effects of acute and chronic noise stress on stress-related molecules in the hypothalamus and hippocampus and also corticosterone responses. Sprague Dawley...

Noise is a psychological, environmental stressor that activates limbic sites in the brain. Limbic sites such as the amygdala and the amygdaloid corticotropin-releasing hormone (CRH) system play an important role in integrating stress response. We investigated the association between noise exposures, CRH-related molecules in the amygdala, and behavi...

The effects of noise stress on brain corticotrophin‐releasing hormone (CRH), CRH receptors 1and 2 (CRH‐R1, CRH‐R2) mRNA levels and anxiety related behaviors in rats have been investigated. Rats, which were divided into 4 groups consisting of 8 animals each, were used for gene expression analyses. Basal Level Group (BSG) was sacrificed without expos...

The effects of lithium which is widely used for the treatment of bipolar disorder, on the specific and non‐specific immune systems of rats have been investigated. Forty male rats were used. The rats were divided into control and four treatment groups, each contained 8 animals. While control group were fed with standard commercial pellet, 1, 1.4, 1....

Aim: To investigate the effects of long term pretreatment with low-, medium- and high-dose aspirin (acetylsalicylic acid, ASA) on a model of acute pancreatitis (AP) induced in rats. Methods: Forty male Wistar rats were used. Three experimental groups, each consisting of eight animals, received low- (5 mg/kg per day), medium- (150 mg/kg per day)...

The objective of this study was to investigate in Thoroughbreds, the relation between the development of the heart at prerace period and the velocity at maximum heart rate (VHRmax) between the 24th and 28th month before starting to race. Twenty-one Thoroughbreds (11 female, 10 male) were used in this study. The echocardiographic data were obtained...

page/terms-and-conditions This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any re...

The aim of this study was to obtain reference values of cardiac dimensions and indices of function in Thoroughbred foals. In total 76 Thoroughbred foals (48 female, 28 male) were used in this study. The M-mode echocardiographic data of foals were obtained from birth until 24 months of age at 4 month intervals Most of the investigated parameters inc...

The present study was undertaken to investigate the effects of type of ram presence (permanent vs. intermittent) on estrus onset, estrus duration and frequency of sexual behaviours in Kivircik ewes. During the breeding season, 20 multiparous Kivircik ewes were divided into two groups of permanent (PR) and intermittent (IR) presence of ram. Estrus w...

The effects of Enterococcus faecium NCIMB10415 on the development of pancreas and small intestine, and on activity of some pancreatic digestive enzymes were investigated in broiler chickens. In total, 168 Ross 308 female broiler chickens were used. The chickens were assigned to two groups, control and experimental. Enterococcus faecium NCIMB10415 w...

The aim of the study was to investigate the effects of vitamin E on the cellular immunity in laying hens induced by two different moulting programs. One hundred and forty four Isabrown hens 72 weeks of age were divided into six treatment groups: FAST group was moulted by fed withdrawal for 10 days; FAST group was moulted by feed withdrawal for 10 d...

A study was undertaken to investigate the possible relation between leptin and probiotic in day-old broiler chicks. One hundred and thirty, day-old broiler chicks were divided into two groups as experimental and the control groups. The experimental groups were fed with a diet supplemented with 35 mg/kg probiotic (Enterecoccus faecium cernelle 68) f...

Helleborus orientalis is a naturally cultivated plant in the north part of Turkey, which is used in medical treatment of cattle. This study was planned to investigate the effects Helleborus orientalis on serum protein, lipid profile and some metabolites, electrolytes and also its effects on liver enzyme levels. Water, methanolic extracts and raw ma...

To investigate the effects of Enterococcus faecium Cernelle 68 on output properties and some haematological and biochemical properties in broiler chicks, 130 male Ross-308 broiler chicks were used. The animals were divided into two groups as control and experimental. 35 mg/kg Enterococcus faecium Cernelle 68 was supplemented to diet of the experime...

Changes in a-amylase activity of the pancreas, plasma, crop tissue and crop content related to age and sex were determined in chicks and the correlation among the pancreas, plasma, crop tissue and crop content were investigated. A total of 336 ISA- 5 broiler hybrid chicks were used as material. The chicks were separated into two groups: 224 males a...

In this study, the effects of experimentally induced hyperthyroidism and hypothyroidism on the erythrocyte, leucocyte and haematocrit values, the amount of haemoglobin and plasma glucose, cholesterol, triglyceride, creatinine and lactate dehydrogenase (LDH) levels were investigated. A total of 45 4-week-old female Japanese quail (Coturnix coturnix...

The purpose of this study was to determine the effects of different doses of vitamin E supplemented into the diet on erythrocyte osmotic fragility and some biochemical parameters. Sixty broilers were randomly divided into four groups of 15 each (one control and three experimental groups). Experimental groups (D1, D2, D3) were fed with a diet supple...