Person: KOYUNCU, MEHMET
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KOYUNCU
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MEHMET
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Publication Investigation of the effect of intravaginal device-type and treatment-duration on vaginal features in ewes and determination of antibiotic susceptibility(Agricultural Research Communication Centre, 2021-08-01) Altınçekiç, Seniz Öziş; Cilo, Burcu Dalyan; Duru, Serdar; Koyuncu, Mehmet; Altınçekiç, Seniz Öziş; Cilo, Burcu Dalyan; KOYUNCU, MEHMET; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Mikrobiyoloji Anabilim Dalı; 0000-0001-9044-8092; 0000-0001-5243-4458; JPL-0865-2023; AAG-8210-2021; IVV-5845-2023; I-9517-2017; FFK-4918-2022Background: Seasonal anestrus, which is controlled by the photoperiod in ewes, limits the ability to the fertility of ewe every time. Therefore, using hormones by vaginal devices is the most effective way of increasing fertility in order to form oestrus during the anestrus period and obtain a high rate of pregnancy. But, vaginal devices may cause a change in the profile and number of bacteria in the uterus and vagina, and thus create an environment suitable for infection. For this reason, identification of bacteria that are the source of infection can be achieved by performing antibiotic susceptibility tests and interpreting them correctly. The purpose of this study was to characterize the effect of intravaginal device-type and treatment-duration on vaginal bacteria count and type and determine the antibiotic susceptibility of vaginal bacterias in ewes after a program of oestrus synchronization.Methods: A total of 90 clinically healthy Kivircik ewes were selected. In order to provide oestrus synchronization during anestrus season (June), CIDR was inserted intravaginally to 45 ewes, the other 45 ewes were progestogen sponges inserted. In both groups remained inserted for 5, 9 and 13 days. While vaginal devices were withdrawal both groups ewes were exposed to intramuscular 350 IU PMSG injection. The mucous samples were collected from all ewes 0, 5, 9 and 13 days at time the IVS or CIDR withdrawal. In samples, bacterial concentration, bacterial identification and antibiotic susceptibility were determined.Result: The changes in the vaginal flora caused by the vaginal devices favored the development of opportunistic microbiota that could potentially be pathogenic. In the study, after vaginal device withdrawal, the bacteria species most frequently observed in both IVS and CIDR groups were E. coli. According to the results of this study, the first choice of antibiotics for vaginal infections caused by G- agents in ewes should be any of AXC, CEP and CTZ compared to other antibiotics.Publication Effect of age, live weight and body condition score on fertility in estrous synchronization of kıvırcık sheep(Bursa Uludağ Üniversitesi, 2024-03-11) Nageye, Farida İbrahim; KOYUNCU, MEHMET; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; 0000-0003-0379-7492; 0000-0003-0379-7492Kızgınlığı senkronize edilen Kıvırcık koyunlarında yaş, canlı ağırlık ve vücut kondisyon skorunun koyunların üreme parametreleri ve kuzuların gelişimi üzerindeki etkisi araştırılmıştır. Bu kapsamda yaş, vücut kondisyonu ve canlı ağırlığı farklı olan toplam 85 baş koyun değerlendirmeye alınmıştır. Ana yaşı, vücut kondisyon skoru (koç katım-doğum) ve canlı ağırlık (koç katım-doğum) ortalamaları sırasıyla 2.98, (3.04-3.22) ve (57.05-62.99) bulunmuştur. Ana yaşı ve vücut kondisyon skorunun kuzulama oranı, çoğuz doğum oranı ve yaşama gücü üzerine etkisi önemli bulunmuştur (P<0.05). Koç katım ve doğum dönemindeki canlı ağırlıkların çoğuz doğum oranı üzerine etkisi önemli bulunurken, yaşama gücü üzerine sadece doğum dönemindeki canlı ağırlık değerinin etkisi önemlidir (P<0.05). Ana yaşının doğum ağırlığı üzerine önemsiz, sütten kesim ağırlığı ve günlük canlı ağırlık artışı üzerine etkileri ise önemlidir (P<0.05). Anaların doğum dönemindeki canlı ağırlığının, kuzuların sütten kesim ve günlük canlı ağırlık artışı üzerindeki regresyon katsayısı önemlidir (P<0.05). Koyunların yaş, farklı dönemlerdeki canlı ağırlık ve vücut kondisyonun kendi aralarındaki korelasyon katsayısı değerlerinin (0.220-0.874) önemli olduğu saptanmıştır (P<0.05; P<0.01).Publication Effects of flushing and various doses of β-carotene and vitamin e applications on the reproductive performance of ewes(South African Journal of Animal Sciences, 2022-01-01) Altınçekiç, Şenez Öziş; Koyuncu, Mehmet; Duru, Serdar; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; KOYUNCU, MEHMET; DURU, SERDAR; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Hayvancılık Bilimleri Bölümü; 0000-0001-9044-8092; 0000-0001-5243-4458; AAG-8210-2021; I-9517-2017; FFK-4918-2022The aim of this study was to determine whether fertility could be enhanced in Kivircik ewes during the anoestrous period by flushing or by administering an injectable (Ovostim) containing beta-Carotene and vitamin E. Three-year-old Kivircik ewes (n = 99) were used. The ewes were randomly divided into four groups: flushing, a single dose of Ovostim (5 ml/ewe) before the breeding season, a dose of Ovostim 10 days before the breeding season and a second dose at its start, and an untreated control. Results showed that pregnancy rate was higher in the treated groups than in the control (P <0.001). The single dose of Ovostim produced more multiple births (72%) and the highest litter size (1.64) compared with the other treatments. Although the double-dose of Ovostim influenced the ewes in the anoestrous period to the point of becoming pregnant, it failed to favourably affect the number of lambs born per ewe lambing. In conclusion, flushing the ewes or administering a single dose of Ovostim was shown to be advantageous in comparison with untreated ewes or those given two doses of Ovostim.Publication Effect of sex on fattening performance and carcass characteristics in kivircik lambs(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2021-01-01) Koyuncu, Mehmet; KOYUNCU, MEHMET; Altincekic, Seniz Ozis; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; Duru, Serdar; DURU, SERDAR; Canbolat, Onder; CANBOLAT, ÖNDER; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; 0000-0001-9044-8092; 0000-0001-5243-4458; I-9517-2017; AAG-8210-2021; JPL-0865-2023The aim of this study was to evaluate the effect of sex on fattening performance and carcass characteristics of Kivircik lambs. Fifty head weaned Kivircik lambs, half males and half females, were used in fattening period. After weaning, the growth and feed consumption of the male and the female lambs fattened for 56 days were recorded. Average daily weight gain differed significantly (P<0.01) between the males and the females (294.9 and 214.2 g, respectively). A total of 10 lambs (5 males and 5 females) were slaughtered and the left side of the carcasses was cut into five joints. Dressing percentage (hot/cold) based on full weight and empty body weight were lower (P<0.05) for the males than the female lambs. Sex had a significant effect on kidney-knob and channel fat weight, M. longissimus dorsi section area (MLDA) and liquid expelled (P<0.01). Sex primarily affected the quantity of all types of fat deposits. The male lambs had higher muscle, muscle/bone and muscle/total fat ratios than females.Publication The effects of short-mid-long term intravaginal sponge application on reproductive performance of Karacabey merino ewes in the anestrous season(Agricultural Research Communication Centre, 2019-01-01) Altincekiç, Seniz Öziş; Koyuncu, Mehmet; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; KOYUNCU, MEHMET; Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; 0000-0001-9044-8092; AAG-8536-2021; JPL-0865-2023; AAG-8210-2021The aim of the present paper was to investigate the efficiency of different progestagen treatment methods in combination with Pregnant Mare Serum Gonadotrophin (PMSG) in Merino ewes outside the breeding season. A total of 78 ewes (2 to 4 years old) with a mean bodyweight of 58.4 kg and an average body condition score (BCS) of 3.5 were used in the trial. The ewes were randomly divided into 3 equal groups [n=26]. Intravaginal progestagen sponges containing Fluorogestone Acetate (FGA; 30 mg) were inserted intravaginally for different periods (7_days: short-term; 10_days: mid-term, 14_days: long-term). In all cases, 500 IU PMSG was administered intramuscularly at sponge withdrawal. The oestrus response, lambing rate, multiple birth rate, fecundity and litter size were [65.4, 61.5, 18.8 %, 0.77 and 1.25] in the short-term group; 80.8, 88.5, 34.8 %, 1.31 and 1.48 in the mid-term group; and 96.2, 92.3, 62.5 %, 1.50 and 1.63 in the long-term group, respectively. Oestrus manifestation and multiple birth rate were greater in long-term than in mid-and short-term groups, whereas for lambing rate, fecundity and litter size, better results were obtained in long- and mid-term than in short-term protocol. In conclusion, in Merino ewes, oestrus synchronisation outside the breeding season with long and mid-term progestagen treatment was found to be more effective than short-term treatment.Publication Reproductive performance with short-time controlled internal drug release (cidr)-based synchronization protocol for fixed-time artificial insemination in nulliparous and primiparous saanen goats(Polska Akad Nauk, Polish Acad Sciences, Univ Warmia & Mazury Olsztyn, 2022-01-01) Altıncekiç, S. Öziş; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; Koyuncu, M.; KOYUNCU, MEHMET; Bursa Uludağ Üniversitesi/Ziraat Fakültesi.; 0000-0001-9044-8092; AAG-8210-2021; JPL-0865-2023In this study, it was aimed to evaluate the reproductive performance of primiparous and nulliparous Saanen goats following the insemination made ceivically via frozen commercial buck semen with short-time controlled internal drug release (CIDR, Eazi-Breed. Pfizer)-based synchronization. In the study, a total of 50 Saanen goats, 26 of which were aged 9 months and 24 of which were aged 2 years, were used. The CIDRs including 0.33 g of progesterone were applied to all the goats for 7 days and while the CIDRs were taken out of the vagina, the 500 IU equine chorionic gonadotropin (eCG) was injected intramuscularly. The first dose was administered in a fixed-time manner with mini straws of 0.25 ml including 300x10(6) motile frozen spermatozoa 24 hours after the injection without making estrus detection, and the second dose insemination was applied 24 hours later. In the study, although the pregnancy rate, fecundity, prolificacy and multiple birth rate values (83%, 1.25, 1.50 and 60%) obtained in the primiparous goats were found to be higher than those found in the nulliparous age group (80%, 0.84, 1.05 and 38%), they were not statistically significant. It was concluded that the effects of the CIDR-based double-dose insemination applications in the primiparous and nulliparous Saanen breed goats in breeding season for 7 days on fertility were similar and the cervical insemination method, a quick and more practical option compared to the intrauterine insemination, could be used successfully in both age groups.Publication Comparison of milk yield and animal health in turkish farms with differing stall types and resting surfaces(Asian-Australasian Assoc Animal Production, 2015-02-01) Kara, Nurcan Karslıoğlu; Galiç, Aşkın; Koyuncu, Mehmet; KARSLIOĞLU KARA, NURCAN; KOYUNCU, MEHMET; Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü.; 0000-0003-0379-7492; AAG-8536-2021; ABB-3323-2020The current study was carried out to determine the influence of different resting surfaces and stall types on milk yield and animal health. Study was carried out in Bursa that is one of the most important cities of Turkey in terms of dairy production. Effects of resting surfaces and stall types on milk yield were found to be important. Also influence of different resting surfaces and stall types on lactation length was examined and found that rubber mats were different from the two other options. Relationships between different resting surfaces or stall types and health problems were examined and connection between stall type and repeat breeding (RB), dystocia, retained placenta and a connection between resting surface types and RB and clinical mastitis were found to be important. Considering their economic reflections, it can be said that results are quite important to the Turkish dairy industry.Publication Effects of CIDR, vitamin A, E(Kahramanmaraş Sütcü İmam Üniversitesi Rektörlüğü, 2019-01-01) Koyuncu, Mehmet; Altınçekiç, Şeniz Öziş; Nageye, Farida İbrahim; KOYUNCU, MEHMET; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; Nageye, Farida İbrahim; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü.; 0000-0001-9044-8092; AAG-8210-2021; JPL-0865-2023; AAG-8536-2021This study was conducted to review the effects of CIDR vitamin A, E + Se administration on fertility and lamb performance on Kivtrcik ewes during anestrus season. The ewes were randomly assigned into 5 groups. Animals in group 1 served as GDR containing 0.33 g progesterone were inserted into vagina and then removed after 14 days. Following the removal of vaginal apparatuses and PGF2 alpha injection, intramuscular 500 IU Pregnant Mare Serum Gonadotrophin (PMSG) was injected in 20 head of ewes. Animals in group 2 were administered CIDR + Vitamin A + Vitamin F in 20 head of ewes. Animals in group 3 were administered Vitamin A (2ml/head) in 20 head of ewes. Animals in group 4 were administered Vitamin E + Se (2ml/head) in 20 head of ewes. Animals in group 3 served as control in 18 head of ewes. After 24 hours as of application, rams were added in the herd. Results of pregnancy rate (95.0%, 100.0%, 100.0%, 100.0%, 83.3%), lambing rate (95.0%, 100.0%, 100.0%, 100.0%, 83.3%) and prolificacy (21.1, 30.0, 5.0, 10.0, 0.0) were found for ewes of CIDR, CIDR + Vitamin A, E + Se, Vitamin A, Vitamin E + Se administered ewes and control groups, respectively. It can be concluded that administration of CIDR, Vitamin A and E + Se alone and in combination improved reproductive performance on Kivircik ewes.Publication The effect of live weight and body condition score of ewe on growth of lamb at lambing period(Kahramanmaraş Sütçü İmam Üniversitesi, 2018-01-01) Koyuncu, Mehmet; Öziş Altıncekiç, Seniz; Duru, Serdar; Duymaz, Yağmur; Karaca, Merve; KOYUNCU, MEHMET; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; DURU, SERDAR; Duymaz, Yağmur; Karaca, Merve; Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; Uludağ Üniversitesi/Fen Bilimleri Enstitüsü/Zootekni Ana Bilim Dalı; 0000-0001-9044-8092; 0000-0001-5243-4458; 0000-0002-6396-585X; AAG-8536-2021; AAG-8210-2021; GBK-3941-2022; ETY-7622-2022This study was carried out to determine the effect of birth and weaning weight of lamb of ewe body condition score (BCS) and ewe birth weight at lambing period on 115 Kivircik ewes at the 3-4 years of age. BCS was assessed 1 day after lambing, based on a scale of 1-5, by palpation of muscling and fat deposits over and around the vertebrae in the loin region. The data set was analyzed using a model that included body condition score, live weight of ewes, as well as other factors that affected productive traits. The results showed that the overall mean ewe BCS at lambing, ewe live weight, birth weight, weaning weight and daily live weight gain (from birth to weaning) were 2.9, 57.1 kg, 4.5 kg, 23.6 kg and 0.249 kg, respectively. As a result of the analyses, the relationship between body condition score and ewe lambing weight, birth weight and daily live weight gain of lamb were found to be 0.440, 0.301, and 0.219, respectively (P< 0.01; P> 0.05). The effect of ewe BCS was only significant (P< 0.01) effect on lamb birth weight. According to the results, BCS at the end of the gestation period should be at least 3.0-3.5 and also this condition should be maintained during the period of gestation in Kivircik ewes.Publication Managerial practices related to the survival of calves in dairy cattle breeding farms in Hendek district-II(Bursa Uludağ Üniversitesi, 2023-06-14) Karaca, Merve; Koyuncu, Mehmet; KOYUNCU, MEHMET; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; 0000-0003-0379-7492This research was conducted out to determine the knowledge, ideas and behaviors related to the managerial practices of calf survival in dairy cattle farms in Hendek district of Sakarya province, and to analyze the status of the existing farms. In the research, were identified farms which are registered to Turkvet and e-breeding system database having 10 or more dairy cattle in Hendek district. Random sampling method was used to determine the sample size. The identified farms are divided into 5 groups which are 10-20 heads, 21-30 heads, 31-40 heads, 41-50 heads and over 50 heads of cattle. In this context, after obtaining general data about the farms, questions related to the main topics about the care and management of calves such as colostrum use, feeding practices, health protection and housing were evaluated. Milk-fed to calves, marketed milk, marketed milk + waste milk, and marketed milk + milk replacer are given in three ways. Within the scope of the size of the farms, the difference between the source of the milk consumed during the milk feeding period was found to be significant (P<0.05). Until the first 30 days of age, in farms with a capacity of over 30 heads, approximately 8 liters of milk are given (P<0.05), while in small farms, sucking milk from the mother or giving less milk is preferred. Farms are sensitive about reaching the concentrate and rough feed of the calves, and they generally apply it from the first week. The concentrated feed used in calf feeding is approximately 70% in pellet form. The weaning age of the calves is 90 days in farms with 40 heads and below and after 90 and 120 days in farms over 40 heads (P<0.05). Age criterion taken into consideration at weaning was found to be more important than body weight and feed consumption (P<0.05). While the calves are housed mainly in groups (60%) in small-scale farms, individual pens (70%) stand out among the preferences due to the increase in capacity. Small-scale farms prefer metal, wood, and brick, and large-scale farms mainly plastic and metal materials for calf shelters (P<0.05). Eight weeks or more is preferred for keeping calves in individual pens (P<0.05).