2023 Cilt 42 Sayı 2

Permanent URI for this collectionhttps://hdl.handle.net/11452/41031

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The effect of conventional semen, sexed-semen, and embryo transfer on pregnancy rate in holstein dairy cows
(Bursa Uludağ Üniversitesi, 2023-11-08) Koca, Davut; Turgut, Ali Osman; Aktar, Ahmet; Sağırkaya, Hakan; Alçay, Selim; Veteriner Fakültesi; Döllenme ve Suni Tohumlama Bölümü; 0000-0002-2975-2594; 0000-0001-6619-3229; 0000-0002-2472-8157
In this study, it was aimed to detect the effects of conventional semen, sexed-semen and embryo transfer on pregnancy rates in Holstein dairy cows. In the study, a total of 139 healthy cows with the serum progesterone > 8 ng/ml were used as animal material. Estrus synchronization protocol was applied and cows were divided into three different groups as conventional semen group (G1, n=46), sexed semen group (G2, n=47), and embryo transfer group (G3, n=46) considering age, body condition score, lactation number, and body weight. Cows in G1 and G2 were inseminated with conventional semen and sexed-semen, respectively. Embryo transfer was performed to cows in Group 3 (n=46) 7th day after estrus. The embryos were transferred to recipients as freshly. Pregnancy examinations for the cows were conducted on the 30th and 60th days of gestation. The statistical analysis of the obtained results was performed. Pregnancy rates were detected as %50, %46,8 and %69,56 in G1, G2, and G3 respectively on 30th day. On 60th day, however, pregnancy rates were %45.60, %42.55 and %67.39 in G1, G2, and G3 respectively due to embryonic losses. The pregnancy rate was significantly higher in the embryo transfer group (G3) compared to the conventional semen (G1) and sexed-semen (G2) group (p<0.05) on both 30th and 60th days. There was no significant difference between G1 and G2 (p>0.05). Findings led to the conclusion that higher serum progesterone level may increase pregnancy rate in cattle. In addition, it is evident that embryo transfer has the potential for widespread use in the field of veterinary medicine in terms of genetic progress.
Effects of salvia tomentosa ointment on dermal wound healing in a rabbit model
(Bursa Uludağ Üniversitesi, 2023-10-13) Demir, Mehmet Mustafa; İpek, Volkan; Tutun, Hidayet; Çınar, Harun; Aygözer, Leyla Elif Özgü
This study aimed to evaluate the wound healing activity of an ointment containing the hydroethanolic extract of Salvia Tomentosa (S. tomentosa) in a dermal wound model using rabbits. Ointments with concentrations of 2.5% (w/v) and 5% (w/v) were prepared using the hydroethanolic extracts of S. tomentosa. An in vivo excisional wound model was embloyed with New Zealand rabbits (n = 35) to assess the wound healing activity of these ointments. Rabbits were randomly divided into five experimental groups: negative (received no treatment), vehicle (received only the ointment vehicle), positive control (treated with Fitokrem®), and those treated with 2.5% (w/v) and 5% (w/v) S. tomentosa ointments. Wound diameters were measured using calipers on the 4th, 8th, and 14th days, and histopathological examinations were conducted on the 3rd, 7th, and 14th days of treatment. The total phenolic content of the S. tomentosa hydroethanolic extract was determined to be 61.52 ± 2.33 μg of Gallic Acid Equivalents per mg of dry plant material. The total phenolic content and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity of the hydroethanolic extract of Salvia tomentosa were determined spectrophotometrically. In terms of wound closure, both 2.5% a positive effect on dermal wound healing in rabbit.
Evaluation of the effect of buparvaquone used in the treatment of neonatal calves naturally infected with Cryptosporidium Spp. on renal and hepatic functions
(Bursa Uludağ Üniversitesi, 2023-01-12) Güney, Fatma Zehra Evci; Şentürk, Sezgin; Veteriner Fakültesi; İç Hastalıkları Ana Bilim Dalı; 0000-0002-2767-7690; 0000-0002-2465-9913
Cryptosporidium parvum is a zoonotic protozoan that causes neonatal calf diarrhea common in the world. Buparvaquone, which is known to have very positive effects on oocysts, which are the main reserve in the spread of infection, has not yet been investigated for its hemato-biochemical aspect in calves with cryptosporidiosis. In the present study, the effect of buparvaquone on renal and hepatic functions in naturally infected newborn calves with cryptosporidiosis was investigated. A group was formed for this study using only a total of ten calves (n=10) naturally infected with cryptosporidiosis. Buparvaquone 2.5 mg/kg intramuscular injection was administered as a single dose to all calves in the group. Laboratory analyses and statistical calculations of blood and serum samples taken on the specified days were made. According to the results we obtained in the study, it was observed that the renal and hepatic effects of the drug after a single dose injection of buparvaquone to calves with neonatal cryptosporidiosis remained within normal limits, similar to the methods safely applied in the treatment of cryptosporidiosis in the field.
Investigation of textural and surface chemical properties of some animal bones
(Bursa Uludağ Üniversitesi, 2023-12-11) Güzel, Barış Can
The aim of the study is to examine the textural structure and organic functional groups of horse-donkey, cow, dog, and sheep bones by nitrogen gas adsorption-desorption and Fourier Transform Infrared (FT-IR) spectroscopic methods, respectively. For this purpose, textural properties such as BET (Brunauer-Emmett-Teller) surface area, total pore volume, average pore diameter, and surface organic functional groups were determined by nitrogen gas adsorption/desorption at -196 oC and FT-IR spectral analysis methods, respectively. It was observed that the nitrogen gas adsorption isotherms obtained from the BET analysis results were similar to Type-V, which indicates that they have a mesoporous and/or macroporous textural structure, in the IUPAC nitrogen gas isotherm classification. In addition, it was determined from the FT-IR analysis results that they mainly contain organic functional groups such as amine, alcohol, carboxylic acid, ester, ether.
Macroscopic investigation of muscles affecting the ankle (articulatio tarsi) and digit joints (articulationes digiti pedis) in quail (coturnix coturnix) and pigeon (columba livia)
(Bursa Uludağ Üniversitesi, 2023-10-10) İşbilir, Fatma; Arıcan, İlker; Veteriner Fakültesi; Anatomi Bölümü; 0000-0001-6342-0094
The locomotor system consists of two separate parts, the passive motion system and the active locomotor system. While the passive locomotor system consists of bones and joints, the active locomotor system consists of muscles. The strongest connection between bones, joints and muscles is seen in the feet. Feet help different functions in poultry. One of these functions is the activity of the perch. Perching is an instinctive behavior, especially in chickens. There are different views on the perch. Among these views, the mechanisms reported as TKM and ODFM support each other. In our study, the muscles acting on the ankle and digit joints of quails and perching pigeons that do not have the ability to perch were examined macroscopically. For this purpose, hind legs of 20 adult quails and 20 adult pigeons were used. Live weights were determined with a precision scale. They were euthanized by cervical dislocation. After the right and left legs of the euthanized animals were separated from the body, their left legs were fixed in 10% formaldehyde solution for dissection. Dissection was carried out simultaneously for both species. As a result of the study, it was determined that MFDL and MFHL muscle tendons, cartilage protrusions at the level of the metatarsophalangeal joint and pits in the tendon sheaths were more prominent in pigeons than in quails. If these protrusions and pits perform the perching activity by locking together like a zipper, it can be interpreted that pigeons are more suitable for perching activity than quails anatomically

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