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. LXI, Issue 1
Written by C. SVERINCIUC, M.I. BENŢEA, A. ŞARA, L. CLAPA, C.O. COROIAN

The research has followed the effects of the feeding bio-additives Actigen, SelPlex and Yea-Sacc-1026 on the quality of the Siberian sturgeon (Acipenser baerii) meat. The experiments were carried out on a number of 108 Siberian sturgeons distributed in four groups, each with 27 individuals per group. In the experimental group 1 (1E), probiotic Actigen was added 0.08% to the fodder in the combined fodder, 0.03% organic selenium (SelPlex) was added to the experimental group 2 (2E), and to the third experimental group (3E) probiotic Yea-Sacc-1026 in proportion of 0.2% was added. The experimental period lasted 68 weeks, from 1st of July 2016 to 2nd of November 2017. At the end of the experiment control slaughters were made, 5 sturgeons from each group, the meat quality being determined but also its chemical composition. In terms of slaughter yield, equal values have been found between the experimental and control groups, the differences being not statistically represented. The administration of bio-additives (Actigen, SelPlex and Yea-Sacc 1026) resulted in a decrease in water content in experimental groups, 1E (Actigen) 28.71%, 2E (SelPlex) 26.39% and 3E (Yea-Sacc 1026), while the control (C) has 31.20%. The average percentage of crude protein of the 3E (47.31%) increased by 11% compared to the control group (36.29%) and by 6.5% compared to the experimental groups 1E and 2E. The highest gross fat value was observed in 2E group (31.75%) exceeding the control group score (30.27%), while the 3E group has shown the lowest value (23.3%) followed by experimental group 1E with 26.33%. The crude ash content did not show statistically represented differences between the experimental groups and the control group.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Ioan ROTAR, Dragomir D. SANGEORZAN

Food security continues to be a vital subject for every country, while the main mean of supply remains agriculture. In order to evaluate the situation and to discover the tendencies, we track the main production and distribution parameters; arable land, productivity, population and food consumption from 1961 to 2013, and we explore the minimum arable land per person, a way of estimating the necessary area of productive land according to consumption levels, while also taking note of relevant dietary shifts regarding the sources of calories and proteins. Our results show a trend of significant decrease of arable land per person, but also a similar decrease of minimum arable land per person. At the dietary level, we also found increases in consumption, along with a shift towards animal based energy in developing countries, while some developed countries plateaued. In line with the field’s literature, our results describe an increased consumption based on ecologically unsustainable large yield increases.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Vladimir BUZAN, Gheorghe BORONCIUC, Ion BĂLAN, Iulia CAZACOV, Nicolae ROŞCA, Melania BUCARCIUC, Ion MEREUŢĂ, Alexandru DUBALARI

By the methods of spectrophotometric, chromatographic and morphological studies established that as a result of influence of the temperature factor takes place adaptation-compensatory reactions in the gamete plasma membranes of farm animals. As a result of the adaptive-compensatory reactions in the plasma membranes of bull and boar gametes to the influence of temperature factor occur a shift of the phase transition of lipids to a lower temperature. In plasma membranes the amount of phospholipids predominates over cholesterol. During the stages of cryopreservation of cock semen there is a decrease in the amount of cerebrosides of 1, 5, 6, and 8 fraction, which compensates by increasing of quantity of cerebrosides third faction. In a similar direction changes the phospholipid-cholesterol ratio, which tends to unity, that is, in the direction of eliminating the phase transitions of lipids. The observed processes may be a consequence of a change in the activity of the phospholipase system, which is a gamete protective reaction in response to the action of extreme cryopreservation factors. The obtained results of the studies of fatty acid composition of plasma membranes testify to its change under the action of cryogenic factors. The accumulated material allows us to note the manifestation of specific reactions characteristic of individual fatty acids during freezing and thawing of biological objects. The change in the content of phospholipids and the saturation of fatty acids of plasma membranes testifies a complex adaptive-compensatory reactions aimed at preserving the viability of gametes in the new conditions of their stay.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Monica MARIN, Elena POGURSCHI, D. DRĂGOTOIU, Tomița DRĂGOTOIU

Dairy cows' nutrition should be balanced because important quantities of mineral salts, especially calcium and phosphorus, but also magnesium, potassium, sodium, chlorine etc. are eliminated through milk. Also, mineral substances have a training role in the body, participating in a high proportion in the structure of supporting tissues, as well as a functional role by maintaining the main physiological functions. The use of zeolites in the form of volcanic tuff can influence the mineral and hematological parameters in the blood of cows in the calving period, as well as lactating cows. A lower variation in calcium, phosphorus and magnesium in blood is observed when using the volcanic tuff in the cows' feed during the pre-calving period and the first 2 weeks after calving. In the pre-calving and the first 2 weeks after the calcification, the values of erythrocytes, leukocytes and hemoglobin have lower values but are not statistically provided. During the lactation period, the three hematological parameters of the cows were physiologically normal, not being influenced by the administration of zeolite to the ration of dairy cows.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Ana-Andreea CIOCA, Kemal AGANOVIC, Stefan TÖPFL Ioana-Raluca BALLA, Marian MIHAIU, Liora Mihaela COLOBATIU

Advanced food processing technologies provide us with the possibility to keep food fresh and safe for as long as possible as an alternative to refrigeration storage. One process in particular, the high pressure processing (HPP), can represent an interesting option for restaurant owners or processors of smoked fish. By using this technology, fish fillets can be kept fresh and protected from any microbial alteration that could endanger the consumer even in the case of not preparing them in the next hours after delivery. In this study, we included rainbow trout fillets as samples. The first type of samples were previously pressurized at a pressure level of 400 MPa/6 min. The second type of samples was represented by controls (untreated samples). Both of them were introduced in the sensorial exam (triangle test method) after a cooking process. The baked high pressure processed and control samples were compared with respect to texture, taste, odor and appearance. The final results revealed that the majority of the panelists found the untreated sample softer. Regarding flavour and appearance, the HPP samples and the controls were perceived as mainly similar.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Ksenia KULIKOVA, Yusupjan YULDASHBAEV, Salaudi HATATAEV

The Tuvan short-fat-tailed sheep is a local breed spread in the Russian Federation. This breed habites in Tuva. The aim of investigation was the identification of the genetic polymorphism of calpastatin (CAST) and the growth differentiation factor-9 (GDF9) genes in the Tuvan local sheep population. Calpastatin gene is known as a candidate gene of meat quality traits, and GDF9 gene is a potential genetic marker of prolificacy. Genomic DNA was isolated from samples of blood of 131 animals. Two primer pairs were used to obtain 622 b.p. fragment of CAST gene and 462 b.p. fragment of GDF9 gene. Calpastatin locus was digested with MspI restriction enzyme. Two genotypes (MM and MN) of CAST gene were observed. The polymorphism of GDF9 gene (CC and CD genotypes) was detected after amplicons digestion with AspLEI restriction enzyme. MM and MN genotypes were identified with 0.855 and 0.145 frequencies, M and N allele frequencies were 0.928 and 0.072, respectively. In this population CC and CD genotypes of GDF9 gene were identified with 0.878 and 0.122 frequencies, C and D allele frequencies were 0.939 and 0.061, respectively.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Wisje LusiaTOAR, Max TULUNG, Ventje MEMAH, Endang PUDJIHASTUTI, Laurentius RUMOKOY, Ivone Maria UNTU

The existence of insects in the environment of animal farm has a big role in connection with the development of livestock production in tropical humid areas especially for those located in North Sulawesi, Indonesia. By understanding of the presence of insects in the animal farm environment could help to control the various roles of insect in transmitting pathogenic agents to livestock. Today this understanding is important because there are so many farms that are traditionally carried out which confronted with health control. This article aims to present some important insect order located within the livestock environment in North Sulawesi Indonesia as well as various achievements in detecting the existence of flies. Some of the important species of Diptera found in farms such as: Stomoxys calcitrans, Musca domestica, Musca bakeri, Chrysomyamega cephala, Haematobia exigua, Haematobia irritans and Sarcopaga spp. This scientific information is expected to be a technical information for farmers, observers, and researchers who are interested in this domain.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Kiki HAETAMI, Abun, JUNIANTO, Rita ROSTIKA, ISKANDAR

The purpose of this study was to determine the level and the ratio of types of vegetable fat supplements that are effective in improving the quality of pellets and growth of tilapia, with the following stages:1) Preliminary test to determine fat level, 2) The extraction of vegetable fats (hazelnuts and coconuts) was then formulated with saturated and unsaturated fatty ratios in pellets at the same fat level, and tested their physical qualities by measuring the stability of fish pellets, 3) Feeding trial of saturated fat sources (coconut extract) compared with unsaturated fats (hazelnut extract) in the formulation of growth and efficiency of tilapia seed feed. The experiment was designed completely randomly (5x3) with the treatment of saturated and unsaturated fatty ratios in low protein feed as follows: (1) basal / no oil feed, (2) coconut oil without combination with hazelnut (1: 0); (3) coconut oil mixture and hazelnut (1: 1), (4)hazelnut oil (0: 1), (5) feed control. Chemical analysis results were tested descriptively, while performance data (growth) were analyzed by variety and the difference between treatments was tested with Duncan analysis. Preliminary test results indicate that the use of 4 percent fat level can be used in the formulation of tilapia feed and in accordance with the needs of optimum fats. Chemical description of unsaturated fat sources (linoleic) in hazelnut meets the nutrient requirements of nirvana Nile seed phase. The results of test of water stability obtained that 4% vegetable fat supplement and can improve the physical quality of pellets; with stability (77.57-80.49%) after two hours. The feeding trial showed that the mixture of coconut and hazelnut fat supplements of 2% each in pellet produced physical quality, growth (daily growth rate and specific growth rate) for Nile Nirvana fish. The results of this study indicate that the ratio of saturated 1: 1 unsaturated fats from vegetable oil sources, can match the growth and efficiency achievement of fish fed with higher protein / containing ω-3.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Ayhan GOSTERIT, Fehmi GUREL

Insufficient pollination due to low temperatures, high humidity, low light intensity and isolated atmosphere is one of the major problems in greenhouse vegetable production. These unsuitable conditions cause to insufficient production of fertile pollen, low pollen dynamism and finally serious pollination problems in greenhouses. Before 1990s, plant growth regulators which are also called as hormone spray were frequently used for greenhouse crop pollination. However, there is a worldwide interest to use the bumblebees as a pollinator of many crops in recent years. Due to their excellent pollinator behavior, bumblebees are indispensable element for especially greenhouse tomato production. Using of bumblebee also contribute to necessity of Good Agricultural Practices such as environmental sustainability, economic viability, social acceptability and food safety and quality. In this experiment, we aimed to evaluate the importance of commercially produced bumblebees in terms of environment friendly agriculture.

[Read full article] [Citation]

Published in Scientific Papers. Series D. Animal Science, Vol. LXI, Issue 1
Written by Dan-Iulian EŞANU, Daniel SIMEANU, Ioan Mircea POP

Many research about use of energy syrups in bee nourishment show advantages and disadvantages of each ingredient. The aim of this study was to analyze the influence of three types of such energy supplements (sugar syrup 2:1, corn syrup and enzyme inverted sugar) on some parameters of bee families deprived by natural picking. These parameters (the number of bees, the amount of food supplies and the number of brood cells) were determined for 9 weeks, and the recorded values were processed and analyzed statistically for comparison with the results of other bee families maintained in the field. Values obtained from bees with access to natural picking were superior to those obtained from bees deprived on it. The colonies fed with enzymatic invert sugar syrup registered higher values of the monitored parameters and the lowest values were recorded in those fed with sugar syrup 2:1. Smaller values obtained from bees deprived by natural picking may also be caused by quality of food sources and the stress caused by the restriction of their flight.

[Read full article] [Citation]

Page 6 of 7

The publisher is not responsible for the opinions published in the Volume. They represent the authors’ point of view.

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

Powered by INTELIDEV

Animal Science Journal