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. LXVIII, Issue 2
Written by Alexandru USTUROI, Gabriela ATUDOSIEI (ANIȚĂ), Răzvan Mihail RADU-RUSU, Roxana Nicoleta RAȚU, Cătălin Emilian NISTOR, Dana TĂPĂLOAGĂ, Francois Djitie KOUATCHO, Mădălina Alexandra DAVIDESCU, Marius Gheorghe DOLIȘ, Marius Giorgi USTUROI, Claudia PÂNZARU, Benone PĂSĂRIN

The study aimed to evaluate the improvement in broiler chicken meat quality through the administration of natural biostimulators. The research involved 4,500 Ross-308 chickens, divided into three groups (1,500 birds/group), each consisting of five replicates. The control group (C-G) did not receive any biostimulator. In the experimental group L-E, the Esstence product was administered during the first 15 days of life (8.0 ml/liter of water), while in group L-HS, the Herba Safe product was administered during the first 10 days of life (2.0 ml/liter of water). No antibiotics were used; only the two mandatory PPA vaccines were administered. Slaughter parameters were assessed by determining the carcass yield and identifying the proportions of the cut portions that make up the carcasses. Meat quality parameters included measurements of water, protein, lipids, ash, fatty acids, cholesterol content, and the meat's energy value. The general conclusion was that the administration of the Esstence product to Ross-308 chickens resulted in an improvement in both slaughter indicators and the quality of the meat obtained, under conditions where no pharmaceutical support was provided during the rearing period.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Mihai TOMA, Mihai-George IȘFAN, Ana-Maria SCRIPA, Nicoleta DEFTA

This article explores the impact of social media content on consumer purchasing behavior, particularly within the food industry. It investigates how different types of food-related content, such as influencer recommendations, product reviews, advertisements, and special offers, influence consumer decisions. The study draws on recent literature that highlights the growing role of social media in shaping consumer perceptions and purchasing habits. By analyzing consumer reactions to various forms of food advertising and promotional content, the research aims to provide insights into how brands can effectively leverage social media to enhance engagement and drive sales. Social media plays a important role in shaping food purchasing decisions, with various types of content (such as influencer recommendations, product images, reviews, and special offers) influencing consumers to different extents. Influencers, discounts, and food-related content like recipes or giveaways are moderately to frequently influential for a significant portion of respondents. Additionally, the study highlights the importance of factors such as price, product quality, and packaging in influencing consumer choices. The findings contribute to the ongoing discourse on digital marketing and consumer behavior in the age of social media.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Nina BRADU, Grigore DARIE, Irina DJENJERA, Oleg CHISELIŢA, Doina CEMURTAN, Natalia MATVEENCO, Natalia CHISELIŢA

In sheep farming, the adoption of reproductive technologies remains at a low level. One of the key challenges is the reduced efficiency of using frozen semen from stud rams. This is due to the fact that cryopreservation and subsequent thawing processes result in significant cell losses and structural damage, which greatly affect the quality of the material. To develop a method for long-term storage and preservation of the biological value of spermatozoa during the process of dilution, freezing and thawing of ram sperm, a liquid biologically active microbial preparation (MPSP) containing yeast manoprotein and sulfated cyanobacterial polysaccharides with antioxidant action, introduced into the composition of the synthetic sucrose-citrate-egg yolk (SȚJ) medium in different concentrations, was tested. It was found that the introduction of the drug MPSP into the SȚJ medium at concentrations of 0.4-0.8%/V allowed us to obtain the highest indicators of motility, survival, preservation of acrosome integrity, and speed of sperm movement compared to the control group.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Nicolae ROȘCA, Ion BALAN, Valentina CIOCHINĂ, Sergiu BALACCI, Vladimir BUZAN, Galina OSIPCIUC, Roman CREȚU, Parascovia ȚURCANU, Vlad TEMCIUC, Artiom FILIPPOV

Zinc, being a trace element necessary for vital activity, is indispensable for the survival of living organisms. This element is of major importance in animal nutrition, but it also contributes to the metabolic activity of over 200 enzymes of living organisms, cell division and synthesis of DNA, proteins, tissue growth and development, immune system functioning, bone mineralization, blood coagulation, carrying out spermatogenesis, etc. Through its biological properties, it stimulates digestion, assimilation and has an important role in the activity of the reproductive organs and the metabolism of the digestive tract. It is found that zinc can exert a protective effect against testicular damage and plays an essential role in maintaining reproductive functions. Feed is the main source of zinc for animals, only a small part can be obtained from drinking water. Foods differ in their content of zinc. The daily ration is dependent on gender, age and the general state of the body's health. Based on these considerations, this study was dedicated to the research of the quantitative changes of this element under the influence of polyphenols from nettle.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Angelica DOBRE, Maricel Floricel DIMA, Christian STEINBERG, Carmen Georgeta NICOLAE

Climate change poses significant threats to aquatic ecosystems, notably impacting fish health. Rising global temperatures have led to higher water temperatures in freshwater ecosystems, intensifying stress and disease vulnerability in fish populations. This review investigates the role of bacterial pathogens, specifically Aeromonas hydrophila, Edwardsiella tarda, and Flavobacterium columnare, which thrive in warmer aquatic environments. These pathogens exhibit increased virulence under thermal stress, leading to disease outbreaks in fish. The study examines the relationship between climate change, pathogen proliferation, and fish health, emphasizing the critical need for management strategies to mitigate the effects of infectious diseases in aquaculture and natural ecosystems.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Mălina-Andreea DĂNCIUG (ROTARU), Bianca-Petruța POPA (TIHINIUC-POPA), Benone PĂSĂRIN

Dried distillers grains with solubles(DDGS), is a product from the ethalon production sector that is effectively used in feed for cattle and pigs because of its relatively high protein and nutrient value and lower cost that grains. The purpose of this research was to determine the best DDGS level that could be added to the diet of common carp. A six-week trial was conducted with common carp starting at a weight of 84 g, using three test diets:P0 (0%), P1 (25%) and P2 (35%). The chemical makeup of DDGS examined with Fourier Transform Near-Infrared spectroscopy revealed a protein level of 28.45% and oil content of 5.86%. the diets containing DDGS did not lead to notable changes in growth measures and meat quality. In terms of oxidative state in the muscle tissue, P1 and P2 significantly decreased, in a dose-dependent way, the specific activity of SOD and GSH, while CAT and GPX remained unchanged. The objective of this study was to evaluate the impact of substituting sunflower meal with DDGS in the common carp diet on key growth measures, meat quality, and oxidative stress.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Ionela Florentina TOMA (ENACHE), Gratziela Victoria BAHACIU, Daniela IANIȚCHI, Nela DRAGOMIR, Angelica DOBRE, Iuliana Ștefania BOLOLOI, Gabriela BERECHET, Carmen Georgeta NICOLAE

Fish by-products have low economic value but present potential for use in increasing added value, reducing losses, and mitigating global food waste. The present study aims to develop innovative products that utilize tuna by-products by integrating them into human consumption. Thus, two types of butter croissants with tuna by-product fillings were created. The croissants were developed at the University of Agronomic Sciences and Veterinary Medicine of Bucharest in the Pilot Bakery Station. After creating the recipes and production technologies for the croissants containing fish by-products, consumer acceptance was assessed through sensory analysis tests. The evaluation criteria included taste, aroma, colour, overall appearance, and texture. The results showed that the created and tested products are suitable for large-scale consumption. The study's findings demonstrated that the innovative products developed represent an effective alternative for valorising fish by-products.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Adina NICHITA, Gabriela BUTNARIU, Petronela MUNTEANU, Mona Elena POPA

The paper presents a preliminary study of the realization of meat analogues based on vegetable protein with tomato powder. The bibliographic study, a means of reference for the realization of the meat analogue based on vegetable proteins with tomato powder, led in the first step to the obtaining of the tomato powder and to the performing of its physicochemical characterization. Subsequently, the sensory properties of the newly manufactured meat analogues were characterized, which represented the transition to the first plant-based meat analogues enriched with olive powder obtained from the vegetation waters of olive mills, by using spray-drying technology. The results obtained opening up new opportunities for research, contributing to the sustainability of the environment and the circular economy.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Constanta-Mihaela ION, Minodora MANU, Mihai STĂNESCU, Constantin CORDUNEANU, Cosmin MANCI, Florența-Elena HELEPCIUC, Ana-Maria MOROȘANU, Ciprian-Constantin BÎRSAN, Miruna-Maria ȘTEFĂNUȚ, Loredana BUTA, Anca MANOLE, Roxana-Georgiana NICOARĂ, Sorin ȘTEFĂNUȚ

Until recently, viable populations of Lycaena helle (violet copper butterfly) from Romania were known from low-altitude areas (below 600 m asl). However, this glacial relict faces heavy threats across its Eurosiberian range, with declines in abundance, distribution and habitat quality frequently reported. Many populations have disappeared, especially from the lowland regions, with the currently known populations being found mainly at higher altitudes. Recent national peatland restoration projects in Romania have led to faunal discoveries, including new populations of L. helle in the alpine bioregion. This current study provides new and original information on population size estimates from Dornelor Depression, describes other areas inhabited by this protected species in Suceava County, and reexamines older museum specimens. Given the limited knowledge about the ecological requirements of high-altitude L. helle populations, we review global conservation practices. Evidence indicates that maintaining meadows at mid-successional stage is essential for supporting this butterfly. Therefore, management should focus on balancing rotational mowing or moderate intensity grazing to maintain heterogeneous vegetation while preventing woody encroachment due to abandonment. These practices ensure appropriate coverage for the larval host plant, Bistorta officinalis.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Delia-Gabriela DUMBRAVA, Diana-Nicoleta RABA, Camelia MOLDOVAN, Mirela-Viorica POPA, Corina Dana MISCA, Marioara DRUGA, Mariana-Atena POIANA, Carmen-Daniela PETCU

In recent years, we are witnessing a growing consumer demand for plant-based foods that are as unprocessed and free of synthetic additives as possible, providing the human body with as many bioactive compounds as possible to prevent various diseases. Chia (Salvia hispanica L.) seeds have gained increased attention from researchers and nutritionists, with numerous studies clearly highlighting their high functional potential, due to their rich composition especially in dietary fiber, polyphenols, ω-3, ω-6 and ω-9 fatty acids, proteins that provide all essential amino acids. The aim of this work was to obtain two varieties of vegan appetizer based on chia seeds: one using almond milk, green onion, carrots, lemon juice, flaxseed oil (CSA1), and the second one using soy milk, red onion, seaweed, baked capia peppers, lemon juice, olive oil (CSA2), and to characterize the obtained products in terms of vitamin C content, total polyphenols, carotenoids, antioxidant activity, proximate composition and sensory properties.

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

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