Person: ÖZİŞ ALTINÇEKİÇ, ŞENİZ
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ÖZİŞ ALTINÇEKİÇ
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Publication Effect of ginger essential oil on in vitro gas production, rumen fermentation and methane production(Galenos Yayıncılık, 2021-01-01) Altınçekiç, Erdinç; Canbolat, Önder; Altınçekiç, Şeniz Öziş; CANBOLAT, ÖNDER; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; Bursa Uludağ Üniversitesi/Ziraat Fakültesi/Zootekni Bölümü; 0000-0001-9044-8092; JPL-0865-2023; AAG-8210-2021; JHB-2809-2023In this study, control (0), 50, 100, 200, 400, 800 and 1000 mg L-1 ginger essential oil (GEO) (Zingiber officinale Roscoe) was added to rumen liquid (RL). Then, the effects of the GEO added to the RL In vitro gas production, organic matter digestibility (OMD), metabolisable energy (ME), rumen fermentation parameters and methane (CH4) production were examined on these samples. It was determined that the addition of the GEO to RL decreased the in vitro gas production of Trifolium pratense hay (TPH), the OMD and ME contents, total volatile fatty acids (TVFA), acetic acid (AA), propionic acid (PA), butyric acid (BA) and other volatile fatty acids (OVFA) (P<0.05). Moreover, it was determined that while the productions of carbon dioxide (CO2), CH4 and ammonia nitrogen (NH3-N) decreased, the ratios of the rumen pH and AA/PA increased (P<0.05) depending on the increase in the dose of GEO. In conclusion, it was determined that the GEO dose which had the highest negative effect on the in vitro gas production, the rumen fermentation, the nutrient digestibility, the CH4 and the CO2 production was 1000 mg L-1. It was concluded that since high doses of GEO affect rumen fermentation and digestion of feeds negatively, it would be appropriate to use 200 mg L-1.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) Altınçekiç, Şeniz Öziş; Koyuncu, M.; ÖZİŞ ALTINÇEKİÇ, ŞENİZ; KOYUNCU, MEHMET; Uludağ Üniversitesi/Ziraat Fakültesi/Hayvan Bilimleri Bölümü; 0000-0001-9044-8092; 0000-0003-0379-7492; AAG-8210-2021; AAG-8536-2021; JPL-0865-2023The 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.