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    The effects of dietary supplementation of L-carnitine and humic substances on performance, egg traits and blood parameters in laying hens
    (Asian-Australasian Association of Animal Production Societies, 2006) Yalçin S.; Ergün A.; Özsoy B.; Yalçin S.; Erol H.; Onbaşilar I.
    This experiment was carried out to determine the effects of supplementation of L-carnitine and humic substances alone or in combination in laying hen diets on performance, egg traits and blood parameters. A total of 180 IGH type brown laying hens aged 22 weeks were employed in a completely randomized block design with one control group and three treatment groups. Each group was divided into five replicates as subgroups, each comprising 9 hens. The diets of the first, second and third treatment groups were supplemented with 0.1 g/kg L-carnitine, 1.5 g/kg humic substances (Farmagülator® Dry Plus) and 0.1 g/kg L-carnitine+1.5 g/kg humic substances, respectively. The experimental period lasted 18 weeks. Feeding supplemental carnitine, humic substances or carnitine+humic substances resulted in increases in body weight gain (p<0.05). Dietary treatments did not significantly affect daily feed intake, daily metabolizable energy intake, egg production, egg weight, feed efficiency, mortality, egg shape index, egg breaking strength, egg shell thickness, egg albumen index, egg yolk index, egg Haugh unit and the percentages of egg shell, albumen and yolk. Supplementation of humic substances reduced egg yolk cholesterol as mg per g yolk and mg per yolk (p<0.05). Blood serum parameters were not affected by the supplementation of carnitine, humic substances or carnitine+humic substances. The results in this study demonstrated that humic substances supplementation reduced egg cholesterol without adverse effects on performance, egg traits and blood parameters of laying hens. It was concluded that the usage of L-carnitine alone or in combination with humic substances in diets had no beneficial effects in laying hens.
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    Haemodynamic and biochemical effects of medetomidine-isoflurane and medetomidine-sevoflurane anaesthesia in horses
    (Veterinary Practitioner, 2013) Arican M.; Erol H.; Esin E.
    The aim of the study was intended to evaluate the effects of metedomidine-isoflurane and metedomidine-sevoflurane anaesthesia on haemodynamic, biochemical parameters and intraocular pressure. A total of 12 healty horses with mean body weights 438+ 51 kg, divided into two groups were used as a study materials. In first group metedomidine, ketamine-midazolam and isoflurane was used and in second group metedomidine, ketamine-midazolam and sevoflurane was used. Premedication, Medetomidine 7 µg/ml i/v (5 mg/ ml) midazolam+ ketamine (100 mg/ml), was induced by i/v administration. Inhalation anaesthesia was performed with isoflurane or sevoflurane. Body weights of animals were weighed prior to anaesthesia. Haematologic assessments were recorded (0 minutes). During the anaesthesia within 5, 15, 30 and 60 minutes respiratory system findings, the body temperature, cardiovascular system findings, arterial blood pressure with indirect methods of evaluating and ECG measurement were recorded. There were no statistical differences for the two groups (P>0.05). Blood gases, electrolyte parameters in both groups were not changed. Intraocular pressure measurements and liver enzymes levels were found in the reference values. In a conclusion, metedomidine-isoflurane and metedomidine-sevoflurane both anesthetics were appeared to have minimum complications for horses. Although, metedomidine-sevoflurane provided deep and relevant anaesthesia for cardiopulmoner affects. © 2018, Veterinary Practitioner. All rights reserved.