EFFECTS OF SUPPLEMENTATION WITHANIA SOMNIFERA L. ROOTS ON SOME EGG PRODUCTION AND QUALITY TRAITS OF HEAT STRESSED JAPANESE QUAILS

Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Dhia IBRAHIM, Suad AHMAD, Shalal HUSSAIN

This study was carried out to investigate the anti-stress properties of local Withania somnifera roots, (WSR) in alleviating heat stress and improve egg production and quality in Iraq during summer season. The roots were used as ethanolic extract or crude powder. Ethanolic extract was done by using 70% ethanol. Three hundred Quail hens, 6 weeks (wks) old were used which were fed with standard basal diet containing 20% crude protein and 2903Kcal/Kg metabolizable energy and reared under high environmental temperature(27-37-27°C)and relative humidity (40-50%) and were randomly allocated to five groups as follows: Treatment (T0): control group without any supplementation; Treatment 1 and 2(T1,T2) quails supplemented orally with a dose of 50 or 100 mg/kg body weight(b.wt)/day ethanolic extract of Withania somnifera roots (WSRE; Treatment 3, 4 (T3,T4) quails received Withania somnifera roots as powder (WSRP) mixed with the diet at the rate of 1or 2g/kg diet respectively. At 7,9,11,13 weeks of age and the total average of these weeks egg production and quality traits were calculated. Quails supplemented with roots powder at the rate of 1g/kg diet. (T3) were significantly higher (p≤0.05) in total average of egg production (%) than those received ethanolic extract (T1 and T2). Also T3 was the best treatment in egg weight, feed conversion ratio, egg mass and albumin height. The supplemented groups T1, T2, T3 and T4 did not differ significantly from control in yolk index and Haugh unit. Egg tests during experimental period showed that there were no appearances of blood spot and meat segments, and no significant differences between treatments concerning with egg flavour test. We can concluded that little benefit in using (WSR) under heat stress to improve egg production and quality and the result favourite T3.

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IBRAHIM D., AHMAD S., HUSSAIN S. 2016, EFFECTS OF SUPPLEMENTATION WITHANIA SOMNIFERA L. ROOTS ON SOME EGG PRODUCTION AND QUALITY TRAITS OF HEAT STRESSED JAPANESE QUAILS. Scientific Papers. Series D. Animal Science, Vol. LIX, ISSN 2285-5750, 200-205.

EFFECTS OF THE USE OF HIGH-PROTEIN RAPESEED FEED ON LAYING PRODUCTIVITY AND EGG QUALITY IN JAPANESE QUAILS

Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Svetlana GRIGOROVA, Sabka SURDJIISKA, Natasha GJORGOVSKA

The objective of this scientific paper is to establish the chemical composition and the nutritive value of a high-protein rapeseed feed produced in Bulgaria, and to study the possibilities for replacing soybean meal with this product in the diet of Japanese quails. Chemical composition of the tested product was determined, and the following results regarding its contents were obtained: crude protein – 42.50%, crude fibers – 8.50%, crude fats – 3.50%, lysine – 2.24%, methyonine – 0.85%, tryptophan – 0.51%, threonine – 1.81%, glucosinolates – 11.2 μmol/g. An experiment was performed with a total of 200 female Japanese quails from Pharaoh breed, 8 weeks old, randomly divided in four groups – a control and three experimental groups, 50 quails in each. The poultry from the control group received diet with soybean meal as the basic protein component, while in the experimental groups a part of the soybean meal was substituted with 5%, 10% and 15% of the tested product (for experimental groups I, II and III, respectively). All diets were equal by their nutritional value. During the experiment the feed consumption, laying capacity and health condition were monitored every day. Eggs morphological characteristics and their taste were controlled periodical. In experimental groups I and II, where 5% and 10%, respectively, of high-protein rapeseed product was included in the quail’s diets, laying capacity and laying intensity were significantly higher than in the control group (P<0.05). The addition of 5%, 10% or 15% of the tested product didn’t have negative influence on the egg weight, the eggshell strength, the yolk or the albumen colour, or the boiled eggs’ taste and smell. The examined diets with inclusion of 5%, 10% and 15% of high-protein rapeseed product, according to the results obtained in this experiment, are recommendable for use in the practice.

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GRIGOROVA S., SURDJIISKA S., GJORGOVSKA N. 2017, EFFECTS OF THE USE OF HIGH-PROTEIN RAPESEED FEED ON LAYING PRODUCTIVITY AND EGG QUALITY IN JAPANESE QUAILS. Scientific Papers. Series D. Animal Science, Vol. LX, ISSN 2285-5750, 85-90.

EFFECTS OF TRICAINE ON BLUE TILAPIA AT DIFFERENT SALINITIES AND CONCENTRATIONS

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Semra KÜÇÜK

This experiment was devised to evaluate the effects of tricaine methanesulfonate (MS-222) on blue tilapia, Oreochromis aureus at five different salinities (0, 8, 16, 20, 24 ppt) and four different tricaine concentrations (200, 300, 400, 500 mg l-1). Even though, a body of literature exist about the tricaine usage on fish, not much information is present on tricaine with salt. The requirement time to anaesthetize fish depends on intensity of tricaine concentration and salinity. Induction time of fish decreased as tricaine concentrations increased. When exposed to any of tricaine concentrations, fish entered a deep state of anaesthesia (induction time ranged between 0.19 and 2.54 min). Recovery time was highest at 400-500 mg l-1 of tricaine as salinity increased. Tricaine + salt combination is strongly recommended to use in blue tilapia culture. Ideal tricaine concentration was 200 mg l-1 of tricaine at 8 ppt of salinity to reduce stress in blue tilapia.

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KUCUK S. 2018, EFFECTS OF TRICAINE ON BLUE TILAPIA AT DIFFERENT SALINITIES AND CONCENTRATIONS . Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1, ISSN 2285-5750, 343-347.

EFFECTS OF VITAMIN ADDITIVE DIETS ON COLONY FOUNDATION SUCCESS IN BUMBLEBEE, Bombus terrestris

Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Ayhan GOSTERIT, Gizem OYTUN CICEK

The effects of vitamin additive diets on colony foundation success in Bombus terrestris were investigated in this experiment. A total of 120 artificially hibernated queens were used. Queens were randomly divided to four groups (30 queens for each group). Queens and their colonies were fed with different diets: standard sugar syrup and normal pollen (group 1), vitamin additive sugar syrup and normal pollen (group 2), standard sugar syrup and vitamin additive pollen (group 3) vitamin additive sugar syrup and vitamin additive pollen (group 4). No significant differences were found in egg laying and colony foundation ratio of queens among the experimental groups. However, vitamin addition to pollen or sugar syrup negatively affected the marketable colony production ratio. Marketable colony production ratios of queens were found 60.00%, 26.66%, 53.33%and 45.00% in four groups, respectively. While feeding with vitamin additive diet affected colony initiation time, other traits such as timing of first worker emergence, timing of gyne (young queen) production, timing of switch point and timing of competition point was not affected. Total numbers of individuals produced in colonies were also determined. Significant differences were found only in terms of total number of young queens (gynes) among the groups, but not total number of workers and males. Results showed that feeding with vitamin additive diet has not positive effect on colony development traits in B. terrestris.

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GOSTERIT A., OYTUN CICEK G. 2017, EFFECTS OF VITAMIN ADDITIVE DIETS ON COLONY FOUNDATION SUCCESS IN BUMBLEBEE, Bombus terrestris. Scientific Papers. Series D. Animal Science, Vol. LX, ISSN 2285-5750, 240-243.

EFFICACY OF HERBAL EXTRACTS ON GROWTH PERFORMANCE, SERUM BIOCHEMISTRY AND INTESTINAL SELECTED BACTERIAL POPULATION IN BROILERS

Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Serhat AKYILDIZ, Nida OZCAN, Muzaffer DENLI

This study was conducted to evaluate the effects of two herbal extracts (Emerald and Gundelia tournefortii L. Seed) on growth performance, serum biochemistry and intestinal bacterial population in broilers. A total of 280 Ross 308 1-dayold male broiler chicks were distributed into 5 groups of 7 in each consisting 8 replicates per treatment for 42 days. Five treatments were used; control group received basal diet (without any herbal extract supplementation), the Emerald at 100 mg/kg diet and G. tournefortii L. seed extracts (GTE) at 2, 4 and 8 g/kg diet were added to basal diet. The addition of 4 and 8 g GTE to the diet resulted in significantly higher body weight compared with control group (P0.05). In addition, serum uric acid (UA) and glucose (Glu) concentrations and aspartate amino transferase (AST) and alkaline phosphatase (ALP) activities were not affected by any treatment (P>0.05). In conclusion, our results showed that different dietary levels of GTE may improve the growth performance by increasing intestinal lactic acid bacteria counts.

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AKYILDIZ S., OZCAN N., DENLI M. 2017, EFFICACY OF HERBAL EXTRACTS ON GROWTH PERFORMANCE, SERUM BIOCHEMISTRY AND INTESTINAL SELECTED BACTERIAL POPULATION IN BROILERS. Scientific Papers. Series D. Animal Science, Vol. LX, ISSN 2285-5750, 61-65.

ESTIMATES OF THE TRENDS COMPONENTS IN THE MILK YIELD OF HOLSTEIN FRIESIAN COWS

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Muhittin TUTKUN, Sadık Metin YENER

This study was carried out to estimate the trend components (the phenotypic, genetic and environmental trends) for 305-day milk yield in Holstein Friesian Cattle raised between the years 1989-2012 at the Ceylanpınar State Dairy Farm. In order to estimate the trend components 6165 lactation records of 2055 Holstein cows was analysed. It was found that the lactation period average was 313.23 ± 28.47 days, the annual average lactation milk yield was 6197.88 ± 1681.35 kg and adjusted 305-day lactation milk yield was found to be 6164.41 ± 1713.90 kg. In order to estimate of genetic parameters, standardized milk yield according to 305-day lactation period (lactation 1, 2 and 3) were analysed primarily with repeated-measured animal models by using MTDFREML programs. According to the data obtained in the study, the lactation length, average lactation milk yield and average 305-days milk yield adjusted were calculated as 313.23 ± 28.47 days, 6197.88 ± 1681.35 kg and 6164.41 ± 1713.90 kg, respectively. The phenotypic, environmental and genetic trends for 305-days milk yield were found to be -70.72 kg/year, -70.53 kg/year and -0.19 kg/year, respectively.

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TUTKUN M., YENER S.M. 2018, ESTIMATES OF THE TRENDS COMPONENTS IN THE MILK YIELD OF HOLSTEIN FRIESIAN COWS . Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1, ISSN 2285-5750, 23-30.

ESTIMATING EFFECTIVE POPULATION SIZE USING PEDIGREE DATA

Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Hasan ÖNDER, Cem TIRINK

Determining the sample size is the most important factor to effect of reliability of all scientific studies. The reliability of genetic parameter estimations obtained from phenotypic data with using pedigree depends on sufficiency of sample size. In this study was aimed to determine the effective population size for cattle, sheep and goat breeds. For this aim, methods depend on sex ratio, variance of progeny size and inbreeding rate were compared. Results indicated that the methods depends on variance of progeny size was suggestible for interested breeds.

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ÖNDER H., TIRINK C. 2016, ESTIMATING EFFECTIVE POPULATION SIZE USING PEDIGREE DATA. Scientific Papers. Series D. Animal Science, Vol. LIX, ISSN 2285-5750, 48-50.

ESTIMATION OF THE EFFICIENCY OF POLLINATION BY BEES OF SUNFLOWER CULTURE FOR HYBRID SEED PRODUCTION

Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Valentina CEBOTARI, Ion BUZU, Olesea GLIGA, Olga POSTOLACHI, Nicolae GRANCIUC

The purpose of the research was to estimate the efficiency of pollination by bees of some parental sunflower varieties, depending on the distance between the selected sectors with inflorescences and hives with bees, placed for pollination, was carried out. The experiments were performed on a field of sunflowers, with an area of 36 ha, where maternal variety "Express" and paternal variety "NS-X 6006" (both from Republic of Serbia), destined for crossing to obtain hybrid seeds, were sown alternatively. Around chain have been located 144 bee families, so that there were 4 families per ha. For verifying the self-pollination capacity of sunflower, 4 experimental sectors were selected, at different distances from the beehives - 10, 100, 300 and 500 m. As a control 8 inflorescences were selected in each sector, which before flowering, were covered with gauze. In the phase of full ripening of seeds, from each experimental sector the seeds were collected manually - 8 control-inflorescences and 9 experimental inflorescences (naturally pollinated). For each inflorescence in part were examined: the total number of seeds, number of fertile and sterile seeds, total weight of seeds, weight of fertile and sterile seed (weighed on electronic scales accurate to 0.1 g) and degree of seed's fertility. A result of researches was found that sunflower crops of varieties "Express" and "NS-X 6006" researched by us, are typically entomophilous, because in our experience, self-pollination (isolated) did not occur. The degree of seed's fertility of pollinated by bees inflorescences, varied depending on the distance between experimental inflorescences to the beehives, from 85.7% to 90.3%. The average total mass of the seeds from free pollinated inflorescence was higher compared to that of the self-pollinated inflorescences with 36.6 to 54.0 g or 260-740% (td = 7.5 to 16.3; P < 0.001), hence, pollinating by bees of parental varieties of sunflower "Express" and "NS-X 6006" is quite effective and increases the harvest of seeds from 3.6 to 8.4 times.

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CEBOTARI V., BUZU I., GLIGA O., POSTOLACHI O, GRANCIUC N. 2017, ESTIMATION OF THE EFFICIENCY OF POLLINATION BY BEES OF SUNFLOWER CULTURE FOR HYBRID SEED PRODUCTION. Scientific Papers. Series D. Animal Science, Vol. LX, ISSN 2285-5750, 212-216.

EU REGULATIONS FOR ORGANIC AQUACULTURE – A KEY FOR PRODUCING ORGANIC FOOD

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Carmen Georgeta NICOLAE, Alexandru POPESCU, Magda Ioana NENCIU, Mioara COSTACHE

As a result of applying conventional agriculture that involves synthesis medicines, pesticides and GMO’s, the quality of food gave rise to concerns for the world population. In these circumstances organic agriculture has massively developed in the last decades. The features of this new type of agriculture were also used in aquaculture. Therefore, the European decision makers have issued the following legal acts: Regulations (EC) No 834/2007, 889/2008, 1254/2008, 710/2009 and 537/2009. As regulations they shall apply directly in the national legislation. These regulations cover the fields of pounds for aquaculture, specific organic feed and reproduction methods by organic genetic material. Another target of the regulations is the production of an important source of organic feed – seaweed - intended for the feeding of organic farm animals. In Romania the targeted species are the carp and the Asian carp varieties. There is a great potential for the seaweed organic feed. The organic aquaculture interferes in the friendly way with the environment maintaining the natural characteristics of it and also a sustainable agriculture activity.

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NICOLAE C.G., POPESCU A., NENCIU M.I., COSTACHE M. 2018, EU REGULATIONS FOR ORGANIC AQUACULTURE – A KEY FOR PRODUCING ORGANIC FOOD . Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1, ISSN 2285-5750, 333-336.

EVALUATING ISOFLAVONES ON CHOLESTEROL AND FAT DEPOSITION IN EGG YOLK DURING LAST FAZE OF EGG

Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Natasha GJORGOVSKA, Kiril FILEV, Vesna LEVKOV, Rodne NASTOVA, Svetlana GRIGOROVA

The average content of cholesterol per egg varied from 153.45 to263.90 mg and it varies depending on genotype and, mainly,on the diet. During past decades, there are a lot of experiments with different supplementation of the diet (mineral, probiotic, vegetable oil) of laying hens to decreased the level of the cholesterol in the egg yolk. This experiment was performed to evaluate dietary daidzein and genistein on cholesterol and fat deposition in egg yolk during late phase of egg production. A total of 80 ISA Brown Laying hens 63-wks old were randomly assigned to 4 treatment groups containing 20 hens each. Birds were fed commercial feed diet containing: 0 (BF), 1000 (BF +1000 mg SI), 2000 (BF +2000 mg SI) and 3000 (BF +3000 mg SI) supplemented isoflavones. Water was offered for ad libitum consumption throughout the experiment. Yolk cholesterol and yolk total fat was monitored during the three month period. The supplemented isoflavones in the feed decreased the content of yolk cholesterol during the 3-month feeding trial (P<0.05).The supplemented isoflavones has not any influence on the concentration of fat in the egg yolk and egg yolk mass. Therefore, supplementation of the commercial feed with isoflavones could be used as a tool for the reduction of the yolk cholesterol.

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GJORGOVSKA N., FILEV K., LEVKOV V., NASTOVA R., GRIGOROVA S. 2017, EVALUATING ISOFLAVONES ON CHOLESTEROL AND FAT DEPOSITION IN EGG YOLK DURING LAST FAZE OF EGG. Scientific Papers. Series D. Animal Science, Vol. LX, ISSN 2285-5750, 81-84.


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