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Öğe Alchemilla vulgaris effects on egg production and quality expressed by heat-stressed quail during the late laying period(South African Bureau for Scientific Publications, 2019) Akdemir, Fatih; Köseman, Abdurrahman; Şeker, İbrahimPotential for mitigating effects of heat stress through dietary Alchemilla vulgaris (AV) supplementation during the late laying period of Japanese quail (Coturnix coturnix japonica) were investigated. A 2 x 3 factorial arrangement of environmental temperature (ET) regimes and levels of dietary supplementation with AV (0%, 1%, and 3%) was used in a 75-day experiment. Twenty-five quail were randomly assigned to each treatment with five replicate cages of five birds. The birds were housed in temperature-controlled rooms at 22 +/- 2 degrees C for 24 h/day (TN) or 34 +/- 2 degrees C between 09h00 and 17h00 followed by 22 +/- 2 degrees C for 16 h/day (HS). The interaction of ET and supplement regimes was rarely significant. In HS quail supplemented with 1% AV, egg production was reduced and FCR was increased compared with the other treatments. Dietary AV was found to reduce egg production in TN conditions, but 3% AV supplementation in the HS group prevented decreased egg production and improved FCR. Various indicators of egg quality were significantly affected by supplementation with AV at certain times during the experiment. Most effects of HS on egg quality were manifest in the first 15 days of ET regimes. Although HS significantly decreased eggshell weight until 31-45 days, AV supplementation improved it on the 45th day and then maintained it through the end of the experiment. Thus, AV may mitigate some effects of HS by partially preventing decreased egg production and increased FCR during the late laying period of Japanese quail.Öğe Dietary coenzyme Q10 may improve the growth performance and antioxidant status in quails exposed to cold stress(Polska Akademia Nauk, 2020) Bayril, Tahir; Akdemir, Fatih; Akşit, Hasan Z.; Akşit, DilekIn this study, the effects of coenzyme Q10 (CoQ10) on growth performance, antioxidant status and organ weights in cold-stressed Japanese quails (Coturnix coturnix japonica) were investigated. During the experiment, a 2 × 3 factorial design was employed with two environmental temperatures (ET) and three levels of CoQ10 (0, 20 and 40 mg/kg). A total of 180 one-dayold male quails were randomly allocated into 6 groups with 6 replicates with 5 birds in each replicate. The birds were fed in two separate rooms at either 22 ± 2 °C for 24 h/day (thermoneutral, TN) or 12 ± 2 °C for 8 h/day (cold stress, CS; between 09:00 17:00) followed by 22 ± 2 °C for 16 h/day. CoQ10 addition into diet increased final body weight, body weight gain and cumulative feed intake only in CS regardless of the used dose. It was stated that CoQ10 supplementation did not exert influence on serum and liver superoxide dismutase (SOD) activity and liver total antioxidant status (TAS) in TN conditions, but increased these parameters in CS; however in liver the higher CoQ10 dose was required to obtain the statistically positive effect. When quails were exposed to CS a higher dose of CoQ10 caused a more pronounced decreased in serum malondialdehyde (MDA) level than the lower one; however the effect of CoQ10 on liver MDA level was shown regardless of the used dose. The obtained results show that CoQ10 supplementation reverses the negative effects of CS on growth performance, antioxidant status and organ weights in quails. The caused may effects partly associated with direct antioxidant properties of CoQ10 as well as the synergistic efficacy of CoQ10 with SOD activity.Öğe Effects of Alchemilla vulgaris on growth performance, carcass characteristics and some biochemical parameters of heat stressed broilers(Hellenic Veterinary Medical Society, 2020) Köseman, Abdurrahman; Akdemir, Fatih; Üremiş, Nuray; Şeker, İbrahim; Türköz, YusufThis study aimed to investigate the effects of Alchemilla vulgaris (A. vulgaris) on growth performance, carcass characteristics, and biochemical parameters in broilers exposed to high environmental temperature conditions. A total of 45 broilers of 21 days of age (Ross 308) were used and grouped as the control group (C), and the groups with the addition of 1% (G1), or 3% (G2) A. vulgaris to chicken diet, respectively. In this study, the body weights of heat stressed broilers were significantly different on the 35th day and onwards. Feed intake was higher in the control group. Feed conversion ratio (FCR) was better in groups G1 and G2 compared to control on the 36th and 42nd day, the FCR was better on the 21st- 42nd days. The highest hot and cold carcass performance were observed in group G2 (79.72±0.93% and 78.02±0.99, respectively), and the lowest values were observed in group C (76.26±1.13% and 75.70±1.20%, respectively). A. vulgaris, reduced serum malondialdehyde (MDA) levels as numerically, and suppressed lipid peroxidation in a dose-dependent manner. It had significant effects on monocytes (MON %, MON count), platelets (PLT), and plateletcrit (PCT) parameters only. In conclusion, the deleterious effects of high environmental temperature in broilers could be partially reversed by A. vulgaris addition to the diets between days 21 and 42.Öğe Effects of chitosan coating and different storage periods of broiler breeder eggs on growth performance and carcass characteristics(Sociedade Brasileira de Zootecnia, 2020) Köseman, Abdurrahman; Akdemir, Fatih; Şeker, İbrahimThis study was carried out to determine the effects of coating with chitosan film and storing at different periods (7, 14, and 21 days) of broiler breeder eggs on growth performance and carcass characteristics of the chicks. The present study was arranged as three different storage periods (7, 14, and 21 days) and coating or not the eggs with chitosan film. In total, 1800 hatching fertilized eggs were used. These eggs were divided into six groups with 100 eggs in each and 600 eggs in each replication. A total of 751 chicks obtained from the hatching were used as material in this study. As a result, all chicks in the coated chitosan groups were alive during the 42-day growth period. The average hatching weight was determined as 42.7 +/- 0.1 g. The mean body weight (BW) of chicks on the 42nd day was determined as 2541.8 +/- 12.3 g in all groups. The effect of repetition on weekly BW and body weight gain (BWG) was found to be significant in the growth period. The differences between the groups for the BW were significant on day 1. While the weekly BWG varied, the growth performance was similar in the growth period in all groups. The differences between the groups in terms of slaughter weight and carcass characteristics were insignificant. It was determined that coating broiler eggs with chitosan and storing them in different periods does not have significantly negative effect on growth performance and carcass characteristics.Öğe Effects of coating with chitosan film and storing at different periods of brood broiler eggs on hatching performance(Pakistan Agricultural Scientists Forum (PAS FORUM), 2020) Köseman, Abdurrahman; Akdemir, Fatih; Şeker, İbrahimThe aim of this study was to investigate the effects of coating with chitosan film and storing at different times (from 7 days to 21 days) of Ross 308 brood broiler eggs on weight loss of the eggs and hatching performance. In this study, the experimental treatments consisted of three different storage periods (7, 14 and 21 days) and eggs of each of these groupwere further divided in two sub groups as coating with chitosan film (group A, C and E) or not (group B, D and F). In total, six treatment groups were formed for the study. Total number of eggs used in the study was 1800. In all groups with chitosan coated, high early embryonic mortality (over 90%) and low mid and late embryonic mortality were observed (2.41%-6.89%) (p<0.05). The lowest hatchability was observed in groups A, C and E, which coated with chitosan film (0.67%, 3.00% and 0.33%, respectively). It was further observed that coating the fertilised broiler breeder eggs with chitosan film for different storage periods significantly decreased weight losses in the eggs, both during storage and incubation. However, the expected positive effects on hatchability of incubated eggs were not actually observed Conversely, the coating of eggs with chitosan film adversely affected the embryonic mortality and the hatching performance. © 2020, Pakistan Agricultural Scientists Forum.
