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. LXVII, Issue 2
Written by Roxana-Andreea MUNTEANU-ICHIM, Georgiana Ancuta MISU, Cristina Maria CANJA, Mirabela LUPU, Carmen-Liliana BĂDĂRĂU, Vasile PĂDUREANU, Florentina MATEI

The paradigm surrounding milk has shifted as consumer preferences evolve due to lactose intolerance awareness and the prevalence of cow's milk allergies. Consequently, plant-based milk substitutes have gained popularity. This study offers a comprehensive examination of the physicochemical, rheological and sensory attributes of various functional plant-based yoghurts, coconut yoghurt with tapioca, fruits and soy yoghurt with red fruits, mango, lemon grass, etc. The study reveals the potential of these products to fulfil consumer demands for both sensory satisfaction and nutritional benefits. Furthermore, it identifies avenues for further refinement and innovation in product development and formulation, thereby providing valuable insights for both industry stakeholders and consumers seeking viable dairy alternatives. This study underscores the growing importance of plant-based options in meeting diverse dietary needs and preferences in today's evolving food scene. Moreover, it emphasizes the necessity of transitioning to a more plant-based diet to address climate change, reduce environmental impacts, and improve health.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Mihaela DUMITRU, Dan RÂMBU, Nicoleta LEFTER, Smaranda TOMA, Georgeta CIURESCU

Non-conventional feed resources (NCFR) as potential alternative feed ingredients for animal production continue to be a topic of great interest in recent years. As a promising solution for livestock feeding to reduce feed costs and ensure productivity and environmental sustainability with maximum efficiency, some of the potentially available NCFR are useful oilseed by-products. Some of them have a high nutritional value and contain several bioactive compounds (dietary fiber, essential oils, vitamins, minerals, polyphenols, etc.) which can promote the health and well-being of animals. However, the protein content, low energy level or the presence of some anti-nutritional factors can compromise its quality and restrict its use in animal feeding. Therefore, this paper reviews the nutritional value of three NCFR cold-pressed cakes, i.e., flax, hemp, and pumpkin) and the effects of their inclusion in monogastric diets (poultry and pigs), to provide a theoretical reference for their usefulness in the nutrition field.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Ionel IVAN, Monica MARIN, Paula POSAN, Marius MAFTEI, Mala STAVRESCU-BEDIVAN, Alexandru POPESCU, Carmen Georgeta NICOLAE

The rainbow trout raised in the recirculating system is dependent on the water quality, which must have certain specific parameters. Using specialized literature, the current research aimed at improving the rainbow trout growth conditions in different situations was approached and analyzed. The water parameters differ depending on the season, feed, photoperiod, filter system. The obtained results showed that the most important limiting factors of the physicochemical parameters of water are: temperature, dissolved oxygen, ammonia, nitrites, pH and turbidity. Trout farming in recirculating systems involves high energy consumption and high equipment cost. By optimizing, monitoring and strictly complying with the water physicochemical parameters in RAS, it is possible to improve water quality and obtain large productions of fish, which can quickly amortize the initial investments and profit gain.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Gabriela FRUNZĂ, Otilia Cristina MURARIU, Roxana Nicoleta RAȚU, Marius Mihai CIOBANU, Paul Corneliu BOIȘTEANU

The purpose of this paper was the comparative assessment of the quality of some assortments of chicken hot dog sausages sold in Romania. Two batches of five varieties of hot dog sausages were taken in the study: Caroli, Fox, Cris-Tim, Meda and Pikok/Lidl brand, coded from A to E. Sensory (five-point scale method) and physico-chemical properties were analyzed. Were determined the pH of the products, the content of mineral substances (by calcination at 550°C), the content of water, lipids, proteins, collagen and salt (with the Food-Check infrared spectrophotometer). The results showed very high differences between products in terms of fat content (between 13.5% and 25.1%), the variability was lower for proteins (between 16.6% and 19.3%) and water content (between 55.83% and 66.94%). The salt content had the highest value of 2.83%, exceeding the maximum standard limit, only in the case of C product. The results of the sensory analysis revealed a minimum score for product E (10.63 points/"unsatisfactory product" according to quality standards), compared to product B which obtained the best score among all the analyzed assortments (17.70 points/ "good product").

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Alexandru Marian FLOREA, Ionică NECHIFOR, Ana BOLDIȘOR, Ioana ȚURCANU, Bogdan-Ioan NECHIFOR, Oana ONCIU, Vasile MACIUC, Constantin PASCAL

Taking into account the decreasing trend in skin production, Karakul of Botoșani sheep breeders have reoriented towards meat production, as the demand for this production is increasing, both in the country and for export, Karakul of Botosani sheep meat being highly appreciated in Arab countries. We want to capture the effect of increased meat production on the quality of the curl, which influences the commercial value of the skin. We will analyze the productive capacity of the Karakul of Botosani breed for both skin production and meat production, and the relationship between them, knowing that when you want to improve one production, you do it at the expense of another, for example improved milk production leads to a lower meat production, or a higher milk production leads to a decrease in milk fat percentage, if we are talking about major changes in the productions, because small changes, or changes up to a certain threshold, called limits of productions, do not have major effects on the other productions.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Georgia OLARU, Elena POPA, Mona POPA

Food packaging is innovating towards greener polymers and wider applications of bioactive compounds. Biodegradable active packaging based on natural compounds is a new approach, as it aims to improve shelf life. In this study, the active packaging materials used were chitosan/gelatin/clay polymer films in which sage, fennel, sea buckthorn nanoemulsions were incorporated. To carry out the experiments, the analysed meat was purchased from a chain of butchers in a store in Bucharest. For these experiments, chilled minced beef was chosen. Physical-chemical analyses were carried out on minced beef packed in chitosan/gelatin/clay polymeric films incorporated with nano-emulsions of sage, sea buckthorn, the control package being the polyethylene terephthalate casserole. The physical analyses performed during the experiments were: determination of free ammonia, water activity, colour analysis, analysis of dry matter and moisture content and determination of pH. The microbiological analyses consisted in determining the total plate count (NTC) and the presence of E. coli/coliform bacteria. Based on physical-chemical and microbiological analyses, both the freshness of the meat and its shelf life were determined, during seven days of storage (day 0, day 3, day 5 and day 7) at chilling temperature (4C). Following the results obtained in the physical-chemical analyses, we can state that there is a clear difference in the quality of the meat used in the experiments, during the storage period, depending on the packaging type used.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Ion CĂLIN, Ion RĂDUCUȚĂ, Andrei PUIE, Alexandra POLIOPOL, Ion CĂPRIȚĂ

This paper aims to quantify the quantitative performances to the production of meat of lambs from the main native sheep breeds, in relation to several influencing factors: breed, type of birth and sex of lambs. To evaluate the degree of body development of the lambs during the birth-weaning period (0-60 days), they were weighed at birth, at 30 days and at weaning (60 days). The study was completed by a phenotypic analysis of the aptitudes for meat production on the live animal carried out by the "Method of points" in the lambs after the completion of the experiment. The best results, in terms of quantitative parameters in meat production (average growth rate, total growth rate, weight at slaughter) were obtained by lambs of the Țigaie breed.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Vasile MACIUC

The purpose of this work was to study the incidence of mastitis and its influence on quantitative and qualitative milk production. The biological material was represented by two groups of lactating cows: healthy cows (40 heads) and sick cows (9 heads). The obtained data were systematized and processed statistically. In the conducted study, three types of mastitis were highlighted: serous, catarrhal and purulent. The percentage of 18% of cases of mastitis in total population studied, the catarrhal form predominated with 8%, the serous form with 6% and the purulent one with 4%. Average milk production was 4526.05 kg in healthy cows, compared to sick cows in which milk production was 2251.44 kg and the statistically significant difference for p<0.01 it was of 2274.61 kg of milk. Fat and protein content in sick cows case was also reduced, respectively 2.68% for fat and 2.58% for protein. Improving the rearing system, maintaining hygiene in the barn and especially respecting the hygiene of the udder are some of the measures that must be adopted to be able to avoid such unpleasant situations.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Remus Ioan CHIOREAN, Adrian BOTA, Madalina Ioana MOLDOVAN, Livia VIDU, Gheorghe Emil MARGINEAN

The present study aimed to monitor the changes in metabolic profile during the pre- and post-partum period of high milk producing buffalo cows and their relationship with herd management. The transition period is defined as the period from 3 weeks before calving to 3 weeks after calving. Among the factors that influence the metabolic profile of buffalo cows, the following were highlighted: nutrition, reproduction and climatic factors. This study was carried out on two batches of 10 buffaloes in different stages of the gestation period. The buffaloes benefited from the same fodder ration before going out to graze. After going out to the pasture, the animals taken in the study were fed only with grass from the natural pasture. Ante partum and post-partum blood samples were collected. The samples were analyzed biochemically. The results draw attention of the metabolic profile of the blood in evaluating the nutritional status of buffalo cows and ensuring good health in very demanding physiological conditions, in addition, they provide some indications that buffaloes are more resistant to metabolic disorders in the post-partum period.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Geanina CONSTANDACHE, Floricel Maricel DIMA, Magdalena TENCIU, Iulia GRECU, Viorica SAVIN, Lorena DEDIU

Aquaculture plays a vital role in global protein production, underscoring the significance of preserving the health and well-being of farmed fish. Spirulina, a blue-green microalgae, is emerging as a promising dietary supplement in aquaculture due to its rich nutritional profile and potential health benefits. This systematic review delves into the existing literature to examine the impact of Spirulina supplementation on fish health. After analysing the selected studies, it was found that various fish species fed with Spirulina-enriched diets showed improved growth, enhanced immune responses, and increased antioxidant capacity. The presence of bioactive compounds, especially phycocyanin, contributes significantly to these health benefits. Despite challenges in determining optimal dosage and addressing environmental considerations, the incorporation of Spirulina into fish diets shows potential for enhancing aquaculture sustainability and productivity. Therefore, this review highlights Spirulina's potential as a beneficial dietary additive in maintaining the general health and welfare of cultured fish.

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

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