ISSN 2285-5750, ISSN CD-ROM 2285-5769, ISSN-L 2285-5750, ISSN Online: 2393 – 2260
 

Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Yaşar ÖZVAROL

Size selectivity of sorting grid was studied for Randall's threadfin bream in the Gulf of Antalya, Mediterranean Sea. Trawling’s were carried out in October - December 2012, with a traditional bottom trawl net (600 mesh around the mouth). The fish totally retained in upper codend (catches) and bottom codend (escapes) were used to estimate the selectivity. Selectivity data analyzed as covered cod-end method by means of a logit function of Maximum Likelihood Method. The Kolmogorov – Smirnov test (KS – test) was applied in order to determine the difference between size groups of escapes and catches codends. The percentages of the total catch in terms of weight were 68% retained and 32% escaped. Mean L50 value of Randall's threadfin bream was calculated as 13.19 ± 0.48 cm. Total weight of Randall's threadfin bream caught in hauls was 12.996 kg. The results confirm that using sorting grid fixed mesh codend gave higher L50 value than size selectivity studies by using Hand-Woven Slack Knotted mesh codend.

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Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Yaşar ÖZVAROL

Size selectivity of sorting grid was studied for Common pandora in the Gulf of Antalya. Trawling’s were carried out in October - December 2012, with a traditional bottom trawl net (600 mesh around the mouth). The fish totally retained in upper codend (catches) and bottom codend (escapes) were used to estimate the selectivity. Selectivity data analyzed as covered cod-end method by means of a logit function of Maximum Likelihood Method. The Kolmogorov – Smirnov test (KS – test) was applied in order to determine the difference between size groups of escapes and catches codends. The percentages of the total catch in terms of weight were 56% retained and 44% escaped. Mean L50 value of common pandora was calculated as 14.47 ± 0.27 cm. Total weight of common pandora caught in hauls was 29.937 kg. The results confirm that using sorting grid fixed mesh codend gave higher L50 value than size selectivity studies with different mesh size and shapes.

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Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Yasar ÖZVAROL, Hande KAZANCI

This study was carried out through monthly deep trawls applications in the waters of 20-100 m of depths in the Gulf of Antalya, between June 2013 and November 2014. The species composition, size frequency distribution and length/weight relationships for each sex of the commercially important shrimp, Penaeus japonicus in the Gulf of Antalya, in Mediterranean Sea were studied. A total of 108 individuals of lessepsian penaeid shrimp were sampled during the study. Length and weight of the samples varied between 10.6-20.3 (12.3±2.2) mm total length and 11.33- 80.17 (29.17 ± 13.05) g respectively. The smallest individual was sampled in February and the biggest was in April. A total of 63 (% 58) samples were female and 45 (% 42) were male. The relation between total length (CL) and weight (W) was determined as W = 0.0038CL3,1916 R² = 0.9437. This was calculated for females as W = 0.0036CL3,2158 R² = 0.953 and for males W = 0.0121CL2,7561 R² = 0.8582. It was determined that total and females showed positive allometric growth and males were showed negative allometric growth.

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Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Yaşar ÖZVAROL, Aysu TATLISES

This study was carried out by trammel nets in the waters of North Cyprus, 0-50 m, between January - November 2016. The size frequency distribution and length/weight relationships of Sargocentron rubrum were determined. A total of 148 individuals of lessepsian fish species were sampled during the study. Length and weight of the samples varied between 11.1 - 20.1 (15.1 ± 2.6) cm total length and 23.73 - 153.33 (66.19 ± 33.66) g respectively. The relation between total length (L) and weight (W) was determined as W = 0,0138L3,0915 R² = 0,9773. It was determined that Sargocentron rubrum showed positive allometric growth.

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Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Yaşar ÖZVAROL

This research has been carried out to investigating of some biological aspects of date mussels, Lithophaga lithophaga distributing in Gulf of Antalya, in February 2015 – January 2016. The samples were used to determine length and live weight frequency distributions (nonlinear regression using the allometric function), size (length, breadth, thickness) – size relationship (linear regression). The length – live weight relationships of L. lithophaga were determined by the general formula W = a x Lb, where “W” is the live weight in grams, “L” the sizes (length, breadth, thickness) in cm, and "a" and "b" are the constants to be calculated. Length – breadth and length-thickness relationship were determined by log W = log a +b log L. The statistical analysis of “r2” and 95% confidence limits of the parameters “a” and “b” were calculated. Mean size and weight of samples was calculated 75.58 ± 17.65 cm, 6.56 ± 5.27 g, respectively. Positive allometry was found for the breadth (B) on length and length on live weight relationship was displayed negative growth. Negative relative growth was recorded in the breadth on length and thickness on length (P<0.001).

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Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Galip BAKIR, Feyza ALEV ÇETİN, Nazire MİKAİL

This study investigates factors such as location, altitude, number of animals and number of employees influential in breed preferences of sheep and goat farms in and around Siirt. Research material was formed from a survey carried out in 286 enterprises in Siirt and 6 districts. Data were analysed using SPSS 20.0 software package. Breeds reared in farms are varying by location, in such districts as Centrum, Baykan and Kurtalan with low altitude, hair goats were not preferred, while in places like Eruh, Pervari and Şirvan with rich pasture and high altitude hair goats were preferred intensely. Inbreed preference of farms animal number was found significant (p<0.01). It was found 42.5% of hair goats and 64.3% of Awassi ewes in farms with 26-50 animals, while in farms with 250 and more animals no hear goats was found. Satisfaction case in farms was different according to education level of farmers. Hence, 94.7% of uneducated farmers were satisfied with the reared breed. This rate was 98.3% in primary school graduates, 96.6% in secondary school graduates and increased to %100 in high school graduates. In cattle breed preferences Kurtalan and Pervari districts preferred exotic cattle in the close rates (%35.9, %33.3), also it was pointed out that the both districts had different altitudes. Again, the low percent of native breed and zero crossbreed cattle in Kurtalan district was found significant. Influential factors as location, number of employees in the farm, education, farming duration (p<0.01), altitude and age (p<0.05) were found significant in farms’ cattle breed preferences. With this study made in sheep and goat farms located in Siirt, the impact of the investigated factors in breed selection was found significant. Considering the potential of the livestock in Siirt, it is concluded that in giving directions to the livestock in Siirt, these factors must be taken into account

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Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Cristian Romeo REVNIC, Flory REVNIC, Cătălina PENA, Bogdan PĂLTINEANU, Silviu VOINEA

Nuclear magnetic resonance (NMR) is a modern and accessible technique for studies of erythrocyte membrane permeability in physiological and pathological conditions. In this paper we investigated in rabbits fed on high reach cholesterol diet, by nuclear magnetic resonance method (NMR) the following parameters: the proton life time in erythrocyte, in erythrocyte sediment proton transverse relaxation times (T2a), proton transverse relaxation times in plasma (T2b) and erythrocyte membrane permeability (EMPW). Investigations were carried out on 12 male rabbits aged 20 months old divided into two groups of 6 rabbits each: group A controls and group B fed on cholesterol reach diet (animal origin) for 8 weeks. 1H NMR measurements of the above parameters were performed with an Aremi'78 Spectrometer at 25 mHz frequency. There was a decrease in proton transverse relaxation times in red blood cells from rabbits fed on cholesterol reach diet which suggests an accelerated proton exchange. The activation energy of water exchange through erythrocyte membrane (E) is decreased in cholesterol fed rabbits versus controls. This means that at higher levels of cholesterol the exchanges of water become more accelerated and the processes of membrane exchange are partially disconnected under the influence of thermal processes with heat liberation. In other words, in controls the water exchange processes through erythrocyte membranes increases in parallel with the increase in local or global temperature due to metabolic reactions with heat liberation in intracellular environment. Erythrocyte membrane permeability to water can be taken into consideration as an index of cardiovascular system recovery, important in maintaining a dynamic equilibrium with vascular destruction phenomenon due to high blood pressure.

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Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Sergiu COŞMAN, Andreea Cristina CIOPATĂ, Valentina COŞMAN, Mihail BAHCIVANJI, Victor ŢÎŢEI

The results of the research on biological features, productivity, chemical composition and forage value of Galega orientalis Lam., variety Speranţa, are presented in this paper. The research was focused on the chemical composition and the nutritional value of Galega orientalis Lam., which is a non-traditional fodder plant for the Republic of Moldova, and on the fodder obtained from it. The dry matter of this plant contains 15-20% crude protein, 2.7-3.9% crude fat, 32.2-37.8% crude fibre, 7.3-8.8% ash and 30.6-39.5% nitrogen-free extract. The possibility of producing high quality hay and haylage of this plant under laboratory, semi-production and production conditions has been demonstrated.

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Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Dana TAPALOAGA, Paul-Rodian TAPALOAGA

Organic farming is a sector of great perspective for Romania, due to the fact that it benefits appropriate conditions for the development of such a system of agriculture in comparison with economically developed countries, where super intensive agricultural technologies are used extensively, based largely on chemical fertilizers and pesticides. In the present study, based on an analysis about organic animal production, performed for 2015-2016 there are apparent large possibilities of having profit from this type of agriculture in the enlarged European Community. Talking about economic purpose animals, the principal objective that organic farming has in view is their genetic foundation, improvement and preservation. At the same time, this system aims to improve the condition of life of the animals, by providing not only their physiological needs but also the principles of human care, excluding obviously excessive concentration and permanent indoor keeping (Ilie, 2016). In the past two years, in Romania, organically certified farms have seen a genuine territorial expansion in relation to the previous years and the conventional farms.

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Published in Scientific Papers. Series D. Animal Science, Vol. LIX
Written by Valentina CEBOTARI, Ion BUZU, Olga POSTOLACHI, Olesea Gliga

The purpose of this study was to test in the bee's feed the biomass of aquatic microalgae Scenedesmus quadricauda, hereinafter referred to as bioactive supplement "Scenecuadri" and elaboration on its basis of a process of feeding of bee families during the end of winter and start of spring (february-march), poor harvesting period in nature. The researchers was conducted on the Apis mellifera Carpatica bee families at the experimental apiary of the Institute of Zoology of the Academy of Sciences. For testing of biomass in bee's feed at the end of February, they were formed three batches of bees families, to which once for each frame with bees were administered 200 g of nutritional paste, prepared by mixing the powdered sugar with honey in proportion 7:3. The batch I - control, bees have received only nutritional paste, prepared by mixing the powdered sugar with honey. The batch II - the bees have received paste enriched with nutritional supplement “Apispir + Cr" in quantity of 200 mg of active substance per 1 kg of paste. The batch III - bees have received nutritional paste enriched with bioactive supplement "Scenecuadri" in a quantity equivalent to 200 mg of dry substance per 1 kg of paste. Research results have shown that feeding of bee families with nutritional supplement enriched with biomass of aquatic microalgae S. quadricauda help to increase, compared to the control batch, queen prolificacy up to 125 eggs or 7.8%, the amount of capped brood with 14.7 hundreds cell or 7.7%, family power by 0.30 kg or 9.3%, the amount of bee bread accumulated in nest with 14.0 hundreds cells or 15.5%, the amount of wax increased by 0.04 kg or 13.3%, resistance to disease by 1.6 or 1.8%, brood viability with 11 points or 1.2% and the amount of honey in the harvesting 3.01 kg, or 27.6%. The result is due to increasing nutrient assimilation and accessibility of biomass, given the fact that the microalgae Scenedsmus quadricauda is covered with a thin protective membrane and the biomass is rich in biologically active substances, in particular proteins, carbohydrates, lipids, essential amino acids, micro - and macro elements, antioxidants (beta carotene), which have a catalytic role in the metabolism of substances nitrogenous to worker bees, participates in the synthesis of enzymes, improves the qualitative composition of royal jelly and stimulates its secretion by wet nurses-bees, so indirectly influence (by feeding with royal jelly of the queen) on the reproductive system of the queen, intensifiing the ovogenesis and eggs laying. All of this largely determines the queen prolificacy, development of the larvae and brood from the nest, contributing to the increased family strength and their productive potential as a whole.

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