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. LXII, Issue 1
Written by Mihai COSTACHE, Ioan CUSTURĂ, Minodora TUDORACHE, Ilie VAN

Poultry meat represents a very important part of the human diet, being preferred to „read” meat due to the low content in cholesterol and the high digestibility. Further on, it provides a valuable source of proteins, their quality being reflected in a high content of essential amino acids. The paper represents a review of the main sources cited recently considering the nutritional value of poultry meat. The various poultry species has been mentioned, in comparison to the well-known and preferred chicken and turkey: duck, goose and ostrich. Their nutritional value is presented by highlighting mostly the amino acids, fatty acids and mineral content.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 1
Written by Elvira VRABIE, Irina PALADII, Catalina SPRINCEAN, Valeria VRABIE

It was investigated the influence of pH and temperature under the degree of isolation of free amino acids in the protein mineral concentrates (PMCs) obtained as a result of processing of whey after the manufacture of the granulated cottage cheese “Grauncior” (company JLC) at membrane electrolyzer EDP-4 at current density j = 10 mA/cm2 and j = 20 mA/cm2. The highest degree of extraction of free, especially essential amino acids is recorded in the PMCs during electro-activation at current density j = 20 mA/cm2, at 10 min of processing, when pH = 11.6 and t = 29.5ºC. The level of migration of each essential amino acid in the PMCs is varying in dependence on the time of electrophysical processing, on the current density, pH and temperature values.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 1
Written by Angelica DOCAN, Lorena DEDIU, Iulia GRECU, Mirela CREȚU

Sturgeon hybrids are an important romanian aquaculture species raised for meet and caviar. Knowing the beneficial properties of medicinal herbal supplements, the objectives of present study was to evaluate the effects of sea buckthorn and thyme extract on haematological parameters in juvenile sturgeon hybrids reared in recirculating aquaculture system. The juvenile hybrids were distributed in following groups: (1) Control, untreated fish, (2) fish fed with 1% Sea buckthorn, (3) fish fed with 1% thyme/kg feed and (4) fish fed with mix 0.5% Sea buckthorn and 0.5% thyme. The blood sampling was analyzed to: RBCc, WBCc, Ht, Hb, MCV, MCH, and MCHC. The supplementation of the diet of the hybrid resulted in the improvement of the physiological state, registering differences, depending on the period of administration of phytobiotics as well as the specific action of each type of plant extract. This study provides new information for the use of medicinal herbs as supplementation to sturgeon hybrids diet; their use can increase disease resistance by improving the physiological status.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXII, Issue 1
Written by Nicoleta Mirela BLEBEA, Teodor COSTACHE, Simona NEGREȘ

Cannabidiol (CBD) is the major non-psychotropic cannabinoid compound derived from the plant Cannabis sativa L. CBD was first isolated in 1940 and its structure and stereo chemistry determined in 1963. The cannabinoid CBD, a non-psychoactive isomer of the more infamous tetrahydrocannabinol (THC), is available in a growing number of administration modes, but the most commonly known is CBD oil. In just a few years, cannabidiol (CBD) has become immensely popular around the world, CBD is now sold and used to treat a wide range of medical conditions and lifestyle diseases(Hazekamp, 2018). Hemp oil from Cannabis sativa L. is a very rich natural source of important nutrients, not only polyunsaturated fatty acids and proteins, but also terpenes and cannabinoids, which contribute to the overall beneficial effects of the oil. In the European Union (EU), the cultivation of certain cannabis varieties is granted provided they are registered in the EU’s Common Catalogue of Varieties of Agricultural Plant Species and the THC content does not exceed 0.2% of the dried flowers of the plant(European Commission website, 2018). There are hundreds of producers and sellers of CBD oils active in the market, and their number is increasing rapidly. Various studies done on CBD oils products around the world have come to similar conclusions about incorrect label information. For that reason, thorough analytical testing of final products by certified third-party labs is an essential tool to guarantee the safety and composition of CBD oils. Hence, it is important to have an analytical method for the determination of these components in commercial samples and their applications. The present work describes a technique for the monitoring the cannabidiol-CBD present in 3 commercial hemp oils, by UHPLC with PDA detection.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 1
Written by Ioan Mircea POP, Gabriela FRUNZĂ

The purpose of the study was the appreciation of the quality of some assortments of canned pork marketed in Romania, following the sensory, chemical (including energy value) and aesthetic characteristics. Three types of canned pork were taken in the study (pressed pork, pork in its own juice and hook meat). Were analysed 30 samples (coded A, B and C, ten samples for each assortments). Sensory characteristics were analysed by tasting, using the scoring scales method and the content of water, dry matter, proteins, lipids and salt was determined by standardized classical methods; the results obtained were compared with the values declared on the label. Following the sensory analysis, two products was included in the category of good and one in very good quality class. After laboratory analysis, the amount of protein was the closest (between 14.16% (for product A) and 15.06% (for product C), the amount of water varied between 61.05% (for product A) and 70.25% (for product C), that of lipids between 12.75% (for product C) and 22.80% (for product A) and that of salt between 2.05% (for product B) and 1.73% (for product A). The analysis showed very small differences in the chemical composition compared to the values indicated on the product label, but larger differences could be observed between the studied products, probably based on the different chemical composition of the raw material used.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 2
Written by Sergiu COŞMAN, Victor ŢÎŢEI, Valentina COŞMAN, Vasile Adrian BLAJ, Teodor MARUȘCA, Serghei COZARI

The aim of this study was to determine the green mass productivity, the biochemical composition and the fodder value of a perennial legume – bird’s-foot-trefoil, Lotus corniculatus cv. Doru, grown in an experimental field of the National Botanical Garden (Institute), Chişinău. In the third growing season, the bird’s-foot-trefoil was characterized by high growth rate and regenerative capacity after mowing, making it possible to mow it four times per season. The annual productivity was 44.50 t/ha green mass or 9.70 t/ha dry matter. It was determined that the quality of the green mass varied depending on the harvest time: crude protein 143.5-194.5 g/kg DM, crude fats 30.1-44.8 g/kg DM, crude cellulose 261.7-357.0 g/kg DM, nitrogen free extract 338.3-456.1 g/kg DM, sugars 37.5-61.0 g/kg, starch 18.1-37.8 g/kg, carotene 48.45-77.00 mg/kg, calcium 10.6-14.9 g/kg and phosphorus 2.2-3.3 g/kg. The biochemical and fodder value of the prepared haylages from first and second cuts were: pH 4.46-4.70, lactic acid 34.1-37.2 g/kg DM, acetic acid 5.7-9.4 g/kg DM, butyric acid 0.2 g/kg DM, organic matter 891.8-902.2 g/kg DM, crude protein 170.9-188.8 g/kg DM, crude fats 41.6-44.6 g/kg DM, crude cellulose 332.2-358.9 g/kg DM, nitrogen free extract 298.6-357.5 g/kg DM, sugars 0.87-1.86%, starch 0.91-1.76%, carotene 14.0-24.0 mg/kg, calcium 10.0-10.8 g/kg DM and phosphorus 2.7-3.1 g/kg DM. The prepared hay from first and second cuts contained 18.89-20.76% crude protein, 2.56-2.74% crude fats, 31.62-32.42 % crude cellulose, 33.86-36.33 % nitrogen free extracts, 10.49-11.01 % ash.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXII, Issue 2
Written by Geetruida Josephina Valentina ASSA, Siane Carly RIMBING, Conny Kusuma Marhaeny PALAR, Wisje Lusia TOAR

This study aims to study the relationship between diversity and abundance of flies with cow skin defects according to differences in temperature and humidity in North Sulawesi. This research was carried out in two different regions: in the highland region, and in the lowland region. In the highland data was collected in cattle farms in Minahasa District such as in Kawangkoan and in Tompaso. The activities in lowland realized in South Minahasa Regency such as in Tengah, Poigar. Identification of fly species carried out according to differences the temperature and humidity. The results showed that insect abundance in cows skin defects was significantly affected by humidity (P = 0.023), but was not influenced by altitude (P = 0.341) or temperature (P=0.145). Cow skin defect was influenced by 66.8% by height, humidity, temperature, abundance, and diversity, and the remaining 43.2% was influenced by other factors. The diversity has a significant influence by altitude (P=0.034) and temperature (P=0.048) but was not the same to the humidity (P=0.138). It was obtained R2 value of 0.085 or 8.5% which meant that the diversity was influenced 8.5% by altitude, humidity, and temperature, and about 91.5% was influenced by other factors.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXII, Issue 1
Written by Lucian-Ionel ILIE, Mara GEORGESCU

The nutrition of all people is oriented, generally, on a basic food, which provides the daily needed nutrients. By their main components, meat products contribute to the growth of human body cells, to recover the damaged tissues, to maintain health and work capacity. For the satisfaction of the growing and diversified requirements needed for a modern diet, today there is a wide variety of food assortments. The purpose of this market study was to identify consumer preferences in terms of meat products consumption. The study includes consumer research, based on a questionnaire, which was completed by the direct interview method. The target group of respondents included people from urban and rural areas, young people, adults and retirees, respecting a certain equality of gender. Starting from these objectives, a number of working hypotheses have been established to see whether they are verified or not. The results show the existence of some discrepancies between the perception and interest for quality and safety food. The consumers are concerned about food safety, but this is not a priority in the process of purchasing food, the sensorial characteristics and the cost price underlying the acquisition process.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXII, Issue 2
Written by Alexandra KONSTANDOGLO, Valentin FOKSHA, Vera GRANACI

The article presents the results of studies of the relationship between measurements and milk production at Holstein cows of German and Dutch breeding in a herd of Joint-Stock Company „Aydyn”, Comrat, Administrative and Territorial Unit Gagauzia, Republic of Moldova. By the level of milk productivity, the cows of German breeding were significantly superior to cows of Dutch breeding by 507 kg of milk (II lactation, P<0.05) and 1529 kg of milk (III lactation, P<0.001), respectively. At cows of the Dutch breeding by the size of the milk yield and the connection with the measurements, dependence was found from the slightly negative −0.008 (metacarpus girth) to a high positive +0.665 (width in jobbers). The average milk yield relationship was established at cows of German breeding with a chest girth behind the shoulder blades (+0.364) and a width of a croup (+0.336), which indicates a positive dependence of milk production for carrying out breeding according to the size of exterior region.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 1
Written by Adrian SICEANU, Eliza CĂUIA, Gabriela-Oana VIȘAN, Dumitru CĂUIA

The varroa mite infestation is a serious cause of honeybee colony loss at a global level. The varroa mite population development in the honeybee colony is the result of its reproduction success and of some favouring factors. Its parasitism model, which rely on capped brood for reproduction, as well as the role as vector of viruses increase the negative impact on honeybee health. Thus, there is clearly a necessity to develop new treatment approaches to interrupt the mite’s life cycle, especially before winter honeybee rearing in order to protect it. Except for the formic acid, the substances used today, which generally treat the whole colony, target only phoretic mites. Using the formic and acetic acids’ rapid vaporization properties, two procedures were developed and tested for the treatment of capped brood. The results show a high effectiveness in the mortality of mites (90-100%) in different experimental variants. The capped brood brushing with volatile organic acids represents a highly effective, cost efficient, organic and minimally invasive procedure. It could be applied any time during the active season to decrease the level of infestation before critical moments.

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© 2019 SCIENTIFIC PAPERS. SERIES D. ANIMAL SCIENCE. To be cited: SCIENTIFIC PAPERS. SERIES D. ANIMAL SCIENCE.

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