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Articles 511 - 540 of 592
Full-Text Articles in Animal Sciences
In Vitro Effects Of Melatonin On Hyaluronidase Activity And Sperm Motility In Bull Semen, Sadetti̇n Tanyildizi, Tanzer Bozkurt, Osman Çi̇ftçi̇, Fati̇h Saki̇n
In Vitro Effects Of Melatonin On Hyaluronidase Activity And Sperm Motility In Bull Semen, Sadetti̇n Tanyildizi, Tanzer Bozkurt, Osman Çi̇ftçi̇, Fati̇h Saki̇n
Turkish Journal of Veterinary & Animal Sciences
The effects of melatonin on hyaluronidase activity of semen and spermatozoa motility of Holstein bulls were investigation in vitro. Semen samples were divided into 5 equal parts and incubated (v/v) with melatonin at the doses of 0.5, 1, 2 and 4 mM for 60 min. Percentages of spermatozoa motility, morphological abnormality and hyaluronidase activity of semen were determined at 5, 10, 15, 20, 30 and 60 min during incubation. Results show that melatonin caused a significant (P < 0.001) decrease in the spermatozoa motility, while causing a significant increase in the hyaluronidase activities of the semen. However, there was no significant difference in the percentages of abnormal spermatozoa when compared with control samples. Doses of 0.5, 1, 2 and 4 mM of melatonin in bull semen decreased the percentage of spermatozoa motility in a time- and dose-dependent manner. The mean percentages of abnormal spermatozoa were not affected by melatonin treatment. However, it caused an increased hyaluronidase activity of bull semen. In conclusion, the existence of melatonin in bull semen has a significant effect on fertilization ability by affecting spermatozoa motility and hyaluronidase activity.
Comparison Of Electrocautery And Quantum Energy Surgical Devices In Experimental Partial Hepatectomies, Cem Perk, Zi̇hni̇ Mutlu, Aydin Gürel, Damla Haktanir
Comparison Of Electrocautery And Quantum Energy Surgical Devices In Experimental Partial Hepatectomies, Cem Perk, Zi̇hni̇ Mutlu, Aydin Gürel, Damla Haktanir
Turkish Journal of Veterinary & Animal Sciences
The quantum energy surgical device (QESD) is a new medical instrument that uses kinetic energy to heat the atoms of argon gas to a high temperature and to apply them on tissues. Unlike other devices operating on the principle of argon plasma technology, the QESD can be used in tissue vaporisation, resection, coagulation and superficial sterilisation of tissues. This study aimed to compare the amount of bleeding, duration of liver incision, duration of the whole operation and histopathological changes occurring on the surface of the incision in partial hepatectomies performed by QESD and bipolar electrocautery. The study was carried out …
Identification Of Vibrio Anguillarum By Pcr (Rpon Gene) Associated With Vibriosis In Marine Fish In Turkey, Di̇dem Demi̇rcan, Akin Candan
Identification Of Vibrio Anguillarum By Pcr (Rpon Gene) Associated With Vibriosis In Marine Fish In Turkey, Di̇dem Demi̇rcan, Akin Candan
Turkish Journal of Veterinary & Animal Sciences
The main causative agent of vibriosis is Vibrio anguillarum. In this study, 33 V. anguillarum strains were isolated from the internal organs of marine fish showing typical clinical signs of vibriosis, and these strains were identified by biochemical tests. For comparison of these results, API 20E and BIONOR Mono-Va agglutination kits were used. Finally strains were amplified by PCR using the rpoN gene. Although the phenotypic properties of V. anguillarum strains varied, the rpoN gene from chromosomal DNA was amplified in all strains. In conclusion, this gene could be used in the diagnosis of V. anguillarum strains isolated in Turkey.
The Importance Of Refractoriness In Ovine Antral Digestive And Interdigestive Motility, Krzysztof Waldemar Romanski
The Importance Of Refractoriness In Ovine Antral Digestive And Interdigestive Motility, Krzysztof Waldemar Romanski
Turkish Journal of Veterinary & Animal Sciences
The aim of this work was to find possible differences between the effects of anticholinergic drug administration during the duodenal phase 1 or phase 2a of migrating myoelectric complex on antral spike burst amplitude in fasted and non-fasted sheep. Eight adult rams possessing bipolar electrodes in the antrum and small intestine were used in the study. Feeding increased significantly the spike burst amplitude range from 60-110 to 80-160 µV. The effects of hexamethonium (2 mg/kg), atropine (0.1 mg/kg) and pirenzepine (0.5 mg/kg) given i.v. during phase 1 of the migrating myoelectric complex (expressed as per cent of control) in non-fasted …
Diseases Of White Sea Bream (Diplodus Sargus L.) Reared In Experimental And Commercial Conditions In Greece, Eleni Golomazou, Fotini Athanassopoulou, Styliani Vagianou, Olga Sabatakou, Hlias Tsantilas, Georgios Rigos, Lambros Kokkokiris
Diseases Of White Sea Bream (Diplodus Sargus L.) Reared In Experimental And Commercial Conditions In Greece, Eleni Golomazou, Fotini Athanassopoulou, Styliani Vagianou, Olga Sabatakou, Hlias Tsantilas, Georgios Rigos, Lambros Kokkokiris
Turkish Journal of Veterinary & Animal Sciences
A bacteriological and parasitological study of the white sea bream, Diplodus sargus L., was conducted as this species is a potential candidate for aquaculture in Mediterranean countries. The study comprised fish reared in commercial cages (2 farms) located in different geographical localities, as well as fish reared experimentally in cages located in a natural enclosed lagoon. Fish were examined in the fresh state by means of smears from all internal and external organs and by histology. Microbiology was also performed at all sites. Mortality was low (12%) at farm 1 (Argolida), while at farm 2 (Korinth) and the lagoon it …
Use Of Indirect Excretory/Secretory Enzyme-Linked Immunosorbent Assay (Es-Elisa) For The Diagnosis Of Natural Fasciola Hepatica Infection In Eosinophilic And Non-Eosinophilic Cattle From Eastern Turkey, Sami̇ Şi̇mşek, Ergün Köroğlu, Armağan Erdem Ütük, Kürşat Altay
Use Of Indirect Excretory/Secretory Enzyme-Linked Immunosorbent Assay (Es-Elisa) For The Diagnosis Of Natural Fasciola Hepatica Infection In Eosinophilic And Non-Eosinophilic Cattle From Eastern Turkey, Sami̇ Şi̇mşek, Ergün Köroğlu, Armağan Erdem Ütük, Kürşat Altay
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to investigate fasciolosis in a group of eosinophilic and non-eosinophilic cattle in eastern Turkey. All the cattle were examined for antibodies against F. hepatica by modified indirect excretory/secretory enzyme-linked immunosorbent assay (ES-ELISA). Of the 1200 cattle tested, 164 (13.6%) were found to be eosinophilic by absolute eosinophil counts. Out of the 164 eosinophilic cattle, 121 (73.7%) were found to be positive for fasciolosis by indirect ES-ELISA, while the rate was only 35% among the non-eosinophilic group (P < 0.001). Our data indicate that parasitic infections should be considered an important cause of eosinophilia, particularly in fasciolosis, and the indirect ES-ELISA is useful as a screening test to examine anti-F. hepatica antibodies for the diagnosis of fasciolosis in cattle.
Digestible Methionine And Lysine Requirements, Ratio And Interactions In Lohmann Egg-Type Cockerels, Chengzhang Wang, Yinghua Shi, Yuxin Yang, Zhentian Li, Yuxia Guo, Yibao Jiang
Digestible Methionine And Lysine Requirements, Ratio And Interactions In Lohmann Egg-Type Cockerels, Chengzhang Wang, Yinghua Shi, Yuxin Yang, Zhentian Li, Yuxia Guo, Yibao Jiang
Turkish Journal of Veterinary & Animal Sciences
Metabolism and growth trials were conducted to study true digestible methionine (tMet) and lysine (tLys) requirements for growing Lohmann egg-type cockerels and to evaluate the effects of 2 dietary tMet levels and 4 tLys levels in a factorial arrangement on growth, nitrogen balance and serum biochemical indices. In the metabolism trial, 20 caecectomised and anus-stitch-surgery healthy adult male birds were used to determine the true digestibility of Met and Lys. In the growth trial, 30 Lohmann egg-type cockerels were allocated to each of 32 floor pens (total 960 birds). During the 0-6 week starting period, 2 levels of tMet (0.37, …
Calculation Of Adjustment Factors For Standardizing Lactations To Mature Age And 305-Day And Estimation Of Heritability And Repeatability Of Standardized Milk Yield Of Simmental Cattle Reared On Kazova State Farm, Süleyman Çi̇lek, Mehmet Emi̇n Teki̇n
Calculation Of Adjustment Factors For Standardizing Lactations To Mature Age And 305-Day And Estimation Of Heritability And Repeatability Of Standardized Milk Yield Of Simmental Cattle Reared On Kazova State Farm, Süleyman Çi̇lek, Mehmet Emi̇n Teki̇n
Turkish Journal of Veterinary & Animal Sciences
Adjustment factors of lactation milk yield to mature age and 305-day were calculated and heritability and repeatability of milk yield were estimated for Simmental cows reared on Kazova State Farm. A total of 1549 lactation records of Simmental cows reared on Kazova State Farm between 1992 and 2002 were used. The factors for standardizing incomplete lactations to 305-day were estimated by taking 7 calving age groups into consideration (2, 3, 4, 5, 6-8, 9 and 10 years of age and older). The factors for standardizing to mature equivalent estimated by polynomial regression are between the 24^th and 143^rd month and …
The Effects On Myocardial Improvement Using Atp-Mgcl_2 During The Ischemia Reperfusion Period; An In Vitro Study, Nusret Apaydin, Zülfi̇kar Kadi̇r Saritaş, Kamuran Pamuk, Fatma Eser Özgenci̇l, Fulya Ocak, Tulga Ulus, Baran Budak, Selçuk Sürücü, Sali̇h Fehmi̇ Katircioğlu
The Effects On Myocardial Improvement Using Atp-Mgcl_2 During The Ischemia Reperfusion Period; An In Vitro Study, Nusret Apaydin, Zülfi̇kar Kadi̇r Saritaş, Kamuran Pamuk, Fatma Eser Özgenci̇l, Fulya Ocak, Tulga Ulus, Baran Budak, Selçuk Sürücü, Sali̇h Fehmi̇ Katircioğlu
Turkish Journal of Veterinary & Animal Sciences
We investigated the effect of ATP-MgCl_2 on myocardial hemodynamics and ultrastructure. In the in vitro study, left ventricular systolic and diastolic pressures and dp/dt values were significantly high in the ATP-MgCl_2 group beginning from 0.5 h of the reperfusion period. In the ATP-MgCl_2 group, at the end of the third hour, systolic and diastolic pressure values were 80.0 ± 6.2 and 75.2 ± 7.2 mmHg, while in the control group they were 18.4 ± 7.7 and 7.5 ± 6.8 mmHg (P < 0.05). In the ultrastructural analysis, myofibrillary damage was observed in both groups, but the mitochondrial pathologic changes were clearer in the control group. The electron microscopic score was 0.40 ± 0.061 in the ATP-MgCl_2 group and 1.2 ± 0.039 in the control group (P < 0.001). The hemodynamic and ultrastructural parameters of the specimens investigated in this study revealed that the usage of ATP-MgCl_2 may be beneficial in coping with ischemia-reperfusion damage. In the near future, with the help of more comprehensive studies, ATP-MgCl_2 is expected to be used routinely because of its potential benefits.
Evaluation Of Vaginal Smears, And Progesterone And Relaxin Levels In Pregnant, And Overt And Covert Pseudopregnant Bitches, Ni̇hat Özyurtlu, S. Serhan Ay, Erol Alaçam
Evaluation Of Vaginal Smears, And Progesterone And Relaxin Levels In Pregnant, And Overt And Covert Pseudopregnant Bitches, Ni̇hat Özyurtlu, S. Serhan Ay, Erol Alaçam
Turkish Journal of Veterinary & Animal Sciences
Progesterone and relaxin levels, vaginal smears, and physical differences were evaluated in pregnant, overt pseudopregnant, and covert pseudopregnant bitches. The study included 30 bitches of various breeds, aged 3-12 years and 20 ± 2 kg in body weight, that were divided into 3 groups of 10 animals each. Bitches in group 1 were in the last trimester of pregnancy. Group 2 contained overt pseudopregnant bitches and group 3 consisted of covert pseudopregnant and late dioestrus (between 40 and 60 days of dioestrus) bitches without any signs of overt pseudopregnancy. Clinical, ultrasonographic, and vaginal smear examinations were performed, and cyclic stage …
The Effect Of Soybean Meal Treated With Formaldehyde On Amount Of Protected Protein In The Rumen And Absorption Of Amino Acid From Small Intestines, M. Aki̇f Yörük, Taylan Aksu, Mehmet Gül, Duran Bolat
The Effect Of Soybean Meal Treated With Formaldehyde On Amount Of Protected Protein In The Rumen And Absorption Of Amino Acid From Small Intestines, M. Aki̇f Yörük, Taylan Aksu, Mehmet Gül, Duran Bolat
Turkish Journal of Veterinary & Animal Sciences
This study was conducted to determine the effects of soybean meal (SBM) treated with formaldehyde on rumen fermentation pattern, microbial protein synthesis, amount of by-pass protein, and amino acid absorption from small intestines. Four 1-year-old rams with ruminal, duodenal, and ileal cannulas were fed 800 g of dry clover plus a concentrate mixture containing 100 g of SBM treated with 0%, 0.3%, 0.6%, and 0.9% formaldehyde. The amount of crude protein passed through the duodenum was not affected by the formaldehyde treatment; however, the amount of microbial protein decreased in rams fed with SBM treated with both 0.3% and 0.6% …
A Geometric Modeling Of Dog Intestine, Hüseyi̇n Yildiz, Kadri̇ Arslan, İhsani̇ye Coşkun, Bahri̇ Yildiz
A Geometric Modeling Of Dog Intestine, Hüseyi̇n Yildiz, Kadri̇ Arslan, İhsani̇ye Coşkun, Bahri̇ Yildiz
Turkish Journal of Veterinary & Animal Sciences
In computer-assisted surgical applications, reconstruction of 3-D morphological peculiarities are required. Herein, we present a geometric modeling of the separate intestinal sections of the canine. The intestine of the dog was considered a tubular shape along a special curve. Seven male Turkish shepherd dogs were used for the modeling study. The length (cm) and diameter (mm) of the intestines were measured with digital calipers and formulated. These models were then compared to their original photographs. It was concluded that the geometric modeling and experimental work were consistent. These kinds of organ modeling techniques will enable medical lecturers to show 3-D …
In Vitro Effects Of Some Antibiotics On Glutathione Reductase Obtained From Chicken Liver, Hülya Demi̇r, Mustafa Erat, Hali̇s Şaki̇roğlu
In Vitro Effects Of Some Antibiotics On Glutathione Reductase Obtained From Chicken Liver, Hülya Demi̇r, Mustafa Erat, Hali̇s Şaki̇roğlu
Turkish Journal of Veterinary & Animal Sciences
Glutathione reductase (GR) is important in maintaining high levels of reduced glutathione in cells. The enzyme is inhibited by some drugs used in antimicrobial chemotherapy. The effects of some antibiotics on GR activity were investigated in this study. At first, the enzyme, having a specific activity of 88.28 EU/mg proteins, was purified 1636-fold with a yield of 35%. Purity of the enzyme was checked by means of sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Activity of the enzyme was determined spectrophotometrically at 340 nm and in vitro effects of ofloxacin, levofloxacin, cefazolin, and cefepime were determined. The antibiotics used in …
Treatment Of Infertile Cows: Efficacy Of Pgf_{2\Alpha} And Gentamicin Or Their Combination In A Prid Regime, Yavuz Öztürkler, Ömer Uçar
Treatment Of Infertile Cows: Efficacy Of Pgf_{2\Alpha} And Gentamicin Or Their Combination In A Prid Regime, Yavuz Öztürkler, Ömer Uçar
Turkish Journal of Veterinary & Animal Sciences
The efficacy of PGF_{2\alpha} and intrauterine gentamicin or their combination in a progesterone releasing intravaginal device (PRID) regime was investigated for treatment of infertility in cows. From 46 infertile cows, body condition scores (BCSs) were recorded and the cows were then divided into 4 experimental groups according to the synchronisation protocol and intrauterine gentamicin administration as follows: i) PRID (1.55 g of progesterone and 10 mg of oestradiol benzoate) for 12 days plus artificial insemination (AI) at 48 and 72 h (group 1, n = 8), ii) PRID for 12 days plus an i.m. injection of 0.150 mg of cloprostenol …
Effect Of Energy Deficiency During Late Pregnancy In Chios Ewes On Free Fatty Acids, \Beta-Hydroxybutyrate And Urea Metabolites, Mehmet Hani̇fi̇ Durak, Ayşen Altiner
Effect Of Energy Deficiency During Late Pregnancy In Chios Ewes On Free Fatty Acids, \Beta-Hydroxybutyrate And Urea Metabolites, Mehmet Hani̇fi̇ Durak, Ayşen Altiner
Turkish Journal of Veterinary & Animal Sciences
Pregnant Chios ewes with high twin-lambing rates fed a low energy ration during the final periods of pregnancy were studied. The aim of this study was to determine whether pregnancy toxemia occurred in these ewes by monitoring the changes in the concentrations of serum free fatty acids (FFAs), plasma \beta -hydroxybutyrate (\beta -HB) and urea. Thirty-eight Chios ewes were used. The animals were divided into 3 groups: pregnant normal energy (PNE), pregnant low energy (PLE), and non-pregnant normal energy (N-PNE). On day 105 of gestation, the animals were begun to be fed with the treatment rations. The feeding regime was …
Pathological And Immunohistochemical Investigation Of Naturally Occurring Systemic Candida Albicans Infection In Dogs, Recai̇ Tunca, Tolga Güvenç, Rifki Haziroğlu, Lale Ataseven, Hasan Özen, Ni̇hat Toplu
Pathological And Immunohistochemical Investigation Of Naturally Occurring Systemic Candida Albicans Infection In Dogs, Recai̇ Tunca, Tolga Güvenç, Rifki Haziroğlu, Lale Ataseven, Hasan Özen, Ni̇hat Toplu
Turkish Journal of Veterinary & Animal Sciences
Systemic candidiasis is a rare disease of animals. In this study, the clinical course, and cultural and pathological findings of systemic candidiasis are described and presumed predisposing factors are investigated in 3 dogs. Pathologically, pyogranulomatous lesions in various organs were present in all dogs. Blastospores, pseudohyphae, and true hyphae of Candida albicans were observed with periodic acid Schiff, Gomori's methenamine silver, and immunohistochemistry. Administrations of broad-spectrum antibiotics and corticosteroids and, in one dog, parvoviral infection were thought to be predisposing factors leading to opportunistic infection. The combined effect of immunosuppressants and antibiotics might have led to Candida colonization and dissemination …
The Influence Of Cold Conditioning On The Performance Of The Broiler Chicken, Mehmet Yardimci, Erol Şengör, E. Hesna Şahi̇n, İsmai̇l Bayram, İ. Sadi̇ Çeti̇ngül
The Influence Of Cold Conditioning On The Performance Of The Broiler Chicken, Mehmet Yardimci, Erol Şengör, E. Hesna Şahi̇n, İsmai̇l Bayram, İ. Sadi̇ Çeti̇ngül
Turkish Journal of Veterinary & Animal Sciences
The effect of short-term cold exposure on the performance of 600 commercial Ross 308 male broiler chickens was examined. On the fifth and sixth days of life the trial group was exposed to 15 °C ambient temperature for 3 h, both days, while the control group was kept under conventional brooding conditions. Thereafter, both control and trial birds were exposed to standard rearing temperatures until the 21st day, and from the 21st day to slaughter they were exposed to 15 °C ambient temperature. The mortality rate was significantly lower in the trial group (5%) compared to the control group (11%). …
Evaluation Of Various Antibiotic Treatments In Calves With Infectious Bovine Keratoconjunctivitis, Murat Ki̇bar, K. Semi̇h Gümüşsoy, Ahmet Öztürk
Evaluation Of Various Antibiotic Treatments In Calves With Infectious Bovine Keratoconjunctivitis, Murat Ki̇bar, K. Semi̇h Gümüşsoy, Ahmet Öztürk
Turkish Journal of Veterinary & Animal Sciences
The purpose of this study was to determine whether subconjunctival administration of enrofloxacin could ameliorate a herd outbreak of infectious bovine keratoconjunctivitis (IBK) and to compare the efficacy of this regimen with the efficacy of subconjunctival administration of a combination of penicillin+streptomycin. The calves were assigned to 1 of 3 groups at the beginning of the study, and were examined 3 times weekly for 4 weeks. Calves in group 1 (n = 12) were treated with the subconjunctival administration of a combination of penicillin+streptomycin. This treatment consisted of 3 subconjunctival injections of penicillin+streptomycin every 48 h. Calves in group 2 …
Determination Of The Primary Levels Of The Residues Of The Seeds Of Wheat, Maize, And Barley For The Elaboration Of The Food Mixture For Rabbits, Aida Esperanza Morejon Jacome
Determination Of The Primary Levels Of The Residues Of The Seeds Of Wheat, Maize, And Barley For The Elaboration Of The Food Mixture For Rabbits, Aida Esperanza Morejon Jacome
Theses and Dissertations
The present investigation was done in the parish of Chaltura, Granja "La Pradera" which belongs to the University Técnica del Norte. The main objective of this investigation was to determine the primary levels of the residues of the seeds of wheat, maize, barley for the elaboration of the food mixture for rabbits. The evaluated variables, food consumed, weight gain, food value, protein percentage, production cost per treatment. Previously to the initiation of the field phase bromatological analysis were done on the three food mixtures in the National Institute of Farming Investigation, Quality and Nutrition Area. The treatments were four: TI …
A Switch From Polyandry To Serial Monogamy: Results From A Three Year Tagging Study Of Horseshoe Crabs In Long Island Sound, Jennifer Mattei Ph.D., Paul Goodell, Christine Depierro, Meghann Burke
A Switch From Polyandry To Serial Monogamy: Results From A Three Year Tagging Study Of Horseshoe Crabs In Long Island Sound, Jennifer Mattei Ph.D., Paul Goodell, Christine Depierro, Meghann Burke
Biology Faculty Publications
Part of an ongoing population study of the North American Horseshoe Crab, Limulus polyphemus, in Long Island Sound was completed during the 2003 – 2005 spawning seasons at Milford Point, in Milford, CT. Horseshoe crabs range more widely throughout Long Island Sound than expected and exhibit weak site fidelity. Animals originally tagged in Milford were found as far west as Stamford and as far east as Clinton, CT. during the 3 year study. Out of 522 female horseshoe crabs tagged in 2004 only 4 came back to spawn again at Milford Pt. in 2005. The sex ratios of tagged and …
Annual Review Of The World Pheasant Association 2005/2006, World Pheasant Association
Annual Review Of The World Pheasant Association 2005/2006, World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Chairman of Trustees' report, G. R. (Dick) Potts
Treasurer's report for the year ended April 30, 2006, J. A. Sampson
Responding to UK Government consultations affecting captive stocks, Dick Potts and Simon Mayes
Specialist Groups: Global networks of technical excellence
WPA around the world: highlights from the chapters
Does the Blyth's tragopan have a future in captivity? Michel Saint Jalme and Sophie Chavanne
Cheer pheasant conservation summit in Kathmandu, Peter J. Garson and Hem S. Baral
Making forests more sustainable in Palas Valley, District Kohistan, Pakistan, Rab Nawaz
Key findings from the 2005 annual species surveys in UK and Germany, …
Vitrification And Dehydration For The Preservation Of Gametes, Allison E. Moisan
Vitrification And Dehydration For The Preservation Of Gametes, Allison E. Moisan
LSU Doctoral Dissertations
Of the 36 species of felines in the world, all except the domestic cat are listed as endangered or threatened. To preserve the genetic diversity of felines and other species, genome resource banks have been established. Due to limited availability of germ cells for research, studies must use models to optimize the techniques before they are applied to endangered species. In this study, preservation of oocytes and spermatozoa was examined using the bovine as a model for felines. In the first series of experiments, bovine and feline oocytes were dehydrated, vitrified, warmed and cultured to assess their ability to undergo …
Evaluation Of A Plasmid Delivery System For Production Of Gnrh And Ghrh In The Horse And Goat, William Andrew Storer
Evaluation Of A Plasmid Delivery System For Production Of Gnrh And Ghrh In The Horse And Goat, William Andrew Storer
LSU Doctoral Dissertations
The efficacy of a novel plasmid delivery system was assessed for long-term expression of gonadotropin releasing hormone (GnRH) and growth hormone releasing hormone (GHRH) in horses and goats. The efficacy of the technology was demonstrated using 3 novel plasmids: pSEAP [expressing secreted embryonic alkaline phosphatase (SEAP)], pGHRH (expressing GHRH), and pGnRH (expressing GnRH). Geldings were electroporated with a reporter plasmid expressing SEAP in 3 muscle sites. Expression of SEAP, measured from jugular plasma samples, indicated muscle specificity for uptake and expression of the plasmid. Concentrations of SEAP were greatest (P < 0.05) after pectoralis injection, which was chosen as the site for electroporation in subsequent studies. In a second experiment, stallions were electroporated with pGHRH or pSEAP to evaluate the effect of long-term GHRH treatment on the growth hormone (GH) axis and testicular function. Stallions treated with pGHRH had increased (P < 0.05) plasma concentrations of IGF-I, increased (P < 0.05) volume of accessory sex gland fluid, and increased (P < 0.05) number of normal spermatozoa in the ejaculate relative to controls. In the third experiment, stallions were electroporated with pGnRH or pSEAP to test the effects of GnRH on the reproductive axis. Treatment with pGnRH increased (P < 0.05) plasma testosterone concentrations to d 56 and increased (P < 0.01) the LH response to GnRH on d 21, but did not alter (P > 0.1) seminal characteristics evaluated after 36 d of treatment. In …
Gamete And Cell Technologies For Use In Biological Resource Banking, Liesl Nel-Themaat
Gamete And Cell Technologies For Use In Biological Resource Banking, Liesl Nel-Themaat
LSU Doctoral Dissertations
Biological resource banking is becoming important for endangered species conservation. A series of experiments were conducted to address issues concerning collection and utilization of biomaterials from Gulf Coast Native (GCN) sheep (model species) (Ovis aries) and Eland antelope (Taurotragus oryx). In the first experiment, two ejaculates were collected 10 minutes apart from each of five rams three times a week for three weeks to maximize output and minimize handling time. Semen volume, concentration and total number of spermatozoa were significantly greater in first ejaculates, whereas pre-cooled, cooled and post-thaw motility, as well as sperm survival, were greater in second ejaculates. …
Meat Prices And Factors Affecting Them In Turkey, Yavuz Cevger, Engi̇n Sakarya
Meat Prices And Factors Affecting Them In Turkey, Yavuz Cevger, Engi̇n Sakarya
Turkish Journal of Veterinary & Animal Sciences
Secondary data from different sources were used to examine the changes in red meat prices in Turkey between 1976 and 1989 taking account of the impacts of inflation and red meat imports during that period. It is observed that in current prices a higher price increase was realized in red meat prices compared to the fattening feed prices in the period 1976-1999. When the effects of inflation and purchasing power of money are taken into account, it is determined that red meat prices rose at an increasing rate, whereas feed prices decreased after 1995. On the other hand, it was …
Effects Of Cage Density And Cage Position On Performance Of Commercial Layer Pullets From Four Genotypes, Zehra Bozkurt, İsmai̇l Bayram, İsmai̇l Türkmenoğlu, O. Cem Aktepe
Effects Of Cage Density And Cage Position On Performance Of Commercial Layer Pullets From Four Genotypes, Zehra Bozkurt, İsmai̇l Bayram, İsmai̇l Türkmenoğlu, O. Cem Aktepe
Turkish Journal of Veterinary & Animal Sciences
This study was carried out to determine the effects of genotype, cage density and position on the pullet performance of commercial layer chicks housed in cages. Two thousand 1-day-old chicks of Lohman Brown, Lohman White, Isa Brown and Bowans White genotype were housed at 3 cage densities (105.9, 134.8, 185.3 cm^2/bird from day 1 to 4 weeks of age; 211.8, 274.5 and 370.6 cm^2/bird at 4 to 16 weeks of age) and 3 cage positions (top, middle and bottom rows of the battery). Brown egg layer genotypes were heavier, more uniform and gained more weight with less feed. White egg …
Relationship Between Somatic Cell Count And Milk Production Or Morphological Traits Of Udder In Black-And-White Cows, Vida Juozaitiene, Arunas Juozaitis, Ruta Micikeviciene
Relationship Between Somatic Cell Count And Milk Production Or Morphological Traits Of Udder In Black-And-White Cows, Vida Juozaitiene, Arunas Juozaitis, Ruta Micikeviciene
Turkish Journal of Veterinary & Animal Sciences
The objective of this study is to relationship between the somatic cell count (SCC), milk production and the morphologic traits of udder in the herds of Black-and-White cattle. The data included the test day records of milk and SCC, type evaluation of 2012 Black-and-White cows of the first lactation in 143 Lithuanian herds. The findings of the study are consistent with the results of similar previous studies concerning a negative relationship between SCC and milk yield during lactation. According to the results of the study, the increase in SCC from 100,000 to 800,000 cells/ml and above decreased the milk yield …
The Seroprevalence Of Coxiellosis In Farmers And Cattle In Erzurum District In Turkey, Şenay Seyi̇toğlu, Zülal Özkurt, Ufuk Di̇nler, Bi̇ray Okumuş
The Seroprevalence Of Coxiellosis In Farmers And Cattle In Erzurum District In Turkey, Şenay Seyi̇toğlu, Zülal Özkurt, Ufuk Di̇nler, Bi̇ray Okumuş
Turkish Journal of Veterinary & Animal Sciences
Coxiellosis is a zoonosis caused by Coxiella burnetii. This study conducted to determine the prevalence of coxiellosis in cattle and farmers in Eastern Turkey. A total of 230 cattle and 92 human sera were collected and tested for antibodies against C. burnetii by a commercial ELISA kit. The antibodies to C. burnetii were detected in 22 (9.56%) cattle and 18 (19.5%) healthy farmers. Seropositivity was found in 12 of 53 (22.6%) cattle with an abortion history, and 10 of 177 (5.6%) cattle without an abortion history (P < 0.05). There was a correlation between animal and human seroprevalence in the same district. It was observed that the seroprevalence of coxiellosis was higher in northern districts (32.4% in farmers and 15.4% in cattle) than in other districts (12.1% in farmers and 6.5% in cattle) both for humans and animals (P < 0.05). Coxiellosis was an important health problem in both humans and cattle, and the disease may cause abortion in cattle in Eastern Turkey.
Effects Of Homofermentative Lactic Acid Bacterial Inoculants On The Fermentation And Aerobic Stability Characteristics Of Low Dry Matter Corn Silages, Eki̇n Sucu, İsmai̇l Fi̇lya
Effects Of Homofermentative Lactic Acid Bacterial Inoculants On The Fermentation And Aerobic Stability Characteristics Of Low Dry Matter Corn Silages, Eki̇n Sucu, İsmai̇l Fi̇lya
Turkish Journal of Veterinary & Animal Sciences
This study was carried out to determine the effects of homofermentative lactic acid bacterial inoculants on the fermentation and aerobic stability characteristics of low dry matter corn silages. Corn was harvested at the milk stage. Inoculant-1188 (Pioneer^®, USA; Inoculant A) and Maize-All (Alltech, UK; Inoculant B) were used as homofermentative lactic acid bacterial inoculants. Inoculants were applied to silages 1.5 x 10^6 colony forming units/g levels. Silages with no additive served as controls. After treatment, the chopped corn was ensiled in 1.5-l special anaerobic jars, equipped with a lid that enables gas release only. Three jars from each group were …
Some Reproductive Parameters And Seminal Plasma Constituents In Relation To Season In Akkaraman And Awassi Rams, Mustafa Gündoğan
Some Reproductive Parameters And Seminal Plasma Constituents In Relation To Season In Akkaraman And Awassi Rams, Mustafa Gündoğan
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to describe seasonal changes in scrotal circumference, sperm motility, sperm concentration, percentage of abnormal spermatozoa and biochemical and enzymatic properties of seminal plasma for 9 months in 10 mature fat-tailed Akkaraman and Awassi breed rams. Scrotal circumference and semen were evaluated monthly from rams and seminal plasma separated from semen to study it. Scrotal circumference, sperm motility and sperm concentration were higher during autumn months. Furthermore, autumn months showed moderate percentage of abnormal spermatozoa. The biochemical analyses of ram seminal plasma indicated that the highest values of total protein, albumin (A), globulin (G), total …