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 1
Written by Mihai Cătălin CIOBOTARU, Marius-Mihai CIOBANU, Diana-Remina MANOLIU, Paul-Corneliu BOIȘTEANU

This study aimed to evaluate the influence of soy protein isolate on the quality parameters of pork tenderloin to obtain a product with improved characteristics. Four experimental batches were prepared: a control batch (without soy protein isolate) and three batches injected with brine containing 1%, 2%, and 3% soy protein isolate, based on the weight of the meat. The injection process was carried out under controlled conditions. All batches were analysed from a physico-chemical perspective, and sensory evaluation was conducted by a panel of 50 semi-trained evaluators to assess product acceptability. The addition of soy protein isolate had a positive effect on water retention capacity and texture improvement. Treated batches showed increased values for parameters associated with mechanical resistance and a decrease in cohesion. CIELab colorimetric analysis indicated a significant increase in the treated samples' L* (lightness) values, while the a* (redness) component decreased. Overall, the results demonstrated that injecting pork tenderloin with up to 3% soy protein isolate leads to qualitative changes, with sensory acceptability being more favorable for the 1% and 2% treated batches.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Marinela ENCULESCU, Ioana NICOLAE, Dinu GAVOJDIAN

The aim of this paper was to estimate methane emissions resulted from the enteric fermentation of dairy cattle, between 2015 and 2024 in Romania. The number of dairy cattle used in this paper was reported by the National Institute of Statistics, with enteric emissions being estimated using Tier 1 and Tier 2 methodologies provided by the International Panel on Climate Change Guidelines (IPCC, 2006) and expressed as Gg CH4 yr-1 and t CO2-eq. The gross energy intake (GE), digestible energy (DE), and methane conversion factor (Ym) values for Tier 2, were calculated according to national reference values. Total methane emissions estimated for dairy cattle, decreased from 2.972.264 t CO2-eq/year to 2.672.010 t CO2-eq/year for Tier 1 and from 2.745.591 t CO2-eq/year to 2.468.235 t CO2-eq/year for Tier 2, from 2015 to 2024. The decrease in methane emissions was attributed to the decrease of dairy cattle numbers. The results can provide information on the status quo of the dairy industry, when the environmental footprint is concerned, as well as benchmark information in order to develop appropriate future strategies to reduce carbon footprint of the cattle sector.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Rodica Stefania PELMUS, Mircea Catalin ROTAR, Mihail Alexandru GRAS, Cristina VAN

The objective of this study was to estimate the breeding values and genetic parameters for birth weight and weaning weight in Limousine cattle breed with multivariate maternal animal model for selection. Data consisted of records of 1207 cattle from Romanian Breeding Association for Beef cattle. The direct breeding values for birth weight were between -7.890 and 7.049 and for weaning weight -55.381 and 60.818 kg. The maternal breeding values for birth weight ranged between -1.701 and 1.810 and for weaning weight -22.453 and 20.747. The direct and maternal heritability for birth weight were 0.105, respectively 0.035, for weaning weight 0.662, respectively 0.246. The total heritability for birth weight was 0.92 and 0.655 for weaning weight.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Mircea Cătălin ROTAR, Rodica Ștefania PELMUȘ, Mihail Alexandru GRAS, Cristina VAN

The objective of this study was to estimate the breeding values and genetic parameters for milk yield in population of Țurcana breed and wool yield with animal model for selection. Data for milk yield consisted of records of 315 sheep and for wool yield records of 431 young sheep aged one year from Dacia County Association of sheep breeders. The mean for milk yield in milking period from sheep was 59±0.816 kg. The mean for wool yield for young sheep was 3.95±0.03kg. The studied population for milk yield of Turcana breed had two variety: Belă, 228 ewes with records and Brează, 87 ewes with records. For wool yield the young sheep were 271 from Belă variety and 160 from Breaza variety. The breeding values for milk yield in milked period for sheep with records were between -3.56 and 5.55 and ranged between -5.65 and 5.55 in Ţurcana population. The breeding values for wool production ranged between -0.412 and 0.631. The heritability for milk yield in milking period for Țurcana population was 0.21. The heritability for wool production was 0.34.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Mirela CREȚU, Ion VASILEAN, Săndița PLĂCINTĂ, Marian Tiberiu COADĂ, Angelica DOCAN, Lorena DEDIU, Carmelia Mariana DRAGOMIR BĂLĂNICĂ

This study explores the growth performance of kale (Brassica oleracea var. acephala) cultivated in an aquaponic system integrated with fish production. The experiment was conducted in a controlled environment using varying planting densities to assess their impact on plant development and overall system productivity. Four densities were evaluated: 14 plants/m2, 21 plants/m2, 28 plants/m2, and 41 plants/m2 respectively. Plant growth performance, including plant height, leaf number, and biomass, were evaluated across densities to determine the optimal conditions for kale growth while maintaining water quality parameters for the fish. Results showed significant differences in growth across the stocking densities, with 28 plants/m2 achieving the highest productivity, marked by greater biomass and vigorous development. The findings highlight the potential of aquaponics as a sustainable cultivation method, effectively recycling fish-derived nutrients to support the growth of kale.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Ioana-Alexandra ALEXE, Gabriela Elena STAN, Liliana Maria DRAGOMIR, Gratziela Victoria BAHACIU

This research analyses the assessment, quantification, and stability of fresh product shelf life, emphasizing their impact on food waste mitigation and sustainable food production. Given that food waste presents considerable environmental and economic concerns worldwide, it is essential to comprehend and enhance the shelf life of perishable goods. The research examines multiple evaluation techniques, such as shelf life testing, sensory assessments, and prediction modelling, to ascertain freshness and quality. Furthermore, it underscores the significance of sophisticated preservation methods, including active packaging and refrigeration technology, in prolonging shelf life and preserving product integrity. By enhancing shelf life, food makers, merchants, and consumers can more effectively manage stocks, decrease spoilage, and mitigate waste. This research seeks to enhance a sustainable food system by ensuring the delivery of fresh items to consumers while minimizing the ecological consequences of food waste.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Marinela-Elena SIMION, Roxana-Nicoleta RAȚU, Alexandru USTUROI, Răzvan-Mihai RADU-RUSU, Marius Giorgi USTUROI

Genetic, technological, nutritional, and breeding factors influence the quality of turkey meat. In terms of its biochemical composition, turkey meat is characterized by a high protein content and a favourable ratio between unsaturated and saturated fatty acids, which makes it a valuable nutritional source. Also, turkey meat is lower in fat compared to other types of meat. Regarding the quality of turkey meat, it varies depending on the anatomical part used (breast and thighs) and has distinct nutritional values. Processing factors, storage temperature, and post-mortem pH of the meat affect sensory properties such as texture, taste, and colour. Improving the quality of turkey meat involves optimizing growing conditions, as well as correctly managing the slaughtering and preservation processes to prevent damage to organoleptic characteristics and food safety.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Elena RĂDUCANU, Umer FAROOQ, Roxana Elena STEFAN (VASILIU), Andreea ZINCA, Remus Ioan CHIOREAN, Livia VIDU

The overall objective of this study was to evaluate the results of farm size influence regarding the management practices from dairy buffalo farms. The current study was based on a survey conducted by online interviews between 2020 and 2021, with a number of 81 dairy farms from Romania. This survey aimed to establish current buffalo calves management technics in Romania along with farmer perceptions surrounding different farm size. The descriptive analysis of farm size influence on calves practices was calculated, with chi-squared tests to assess associations between variables. Concerning the colostrum administration time in buffalo calves, there were significant differences (p≤0.05) between small farms and large farms, with 0% of the large farms who feed them in first hour of life; and 80% of then small farms who use the same interval. Regarding the calves housing, cow-calf separation and milk quantity offered, we obtained that the size farm it’s not a parameter to influence those variables. These results underscored how farm size plays a methodical role in shaping the management strategies employed in rearing dairy buffalo calves.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Minodora MANU, Nicolae LOTREAN, Roxana Georgiana NICOARĂ, Simona MIHĂILESCU, Marilena ONETE

In 2020, a faunistic study on invertebrate fauna from Galbena and Vemeşoaia Community and its adjacent area, from Făgărăş Mountains was accomplished. Galbena and Vemeşoaia Community are spreading on 893 hectares (which represents 0.15% from the Făgăraş Mountains). Even if this property is spread over a small area, five Natura 2000 invertebrates were identified: Rosalia alpina (Linnaeus, 1758); Carabus (Hydrocarabus) variolosus Fabricius, 1787; Pholidoptera transsylvanica (Fischer,1853); Lycaena dispar (Haworth, 1802); Callimorpha (Euplagia) quadripunctata (Poda, 1761), protected under the Habitats Directive 92/43 / EEC. Another endemic species for Romania was identified: Carabus (Megodontus) planicollis Küster, 1827. The numerical abundance of each species was recorded and their areas of distribution were established. In the same time the species threats and pressures were evaluated. The main conservation measures were defined. The present study wants to highlight that even small unstudied area could represents an important conservation point for invertebrate fauna directly and indirectly on their habitats.

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Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 1
Written by Bianca-Georgiana ANCHIDIN, Diana-Remina MANOLIU, Mugurel MUNTEANU, Marius-Mihai CIOBANU, Paul-Corneliu BOIȘTEANU

Nowadays, consumer demands for more natural products have forced the food industry to increasingly exclude synthetic compounds from its products and to explore natural sources of bioactive ingredients such as natural antioxidants. All parts of plants, such as fruits, nuts, seeds, leaves, roots and barks, contain antioxidant compounds, making them potentially valuable ingredients for the food industry in the production of products with functional properties. In order to improve the functional properties of meat products, we have developed a meat product assortment with a compact structure, incorporating lichen (Cetraria islandica), an antioxidant ingredient that is unconventional for this type of products, thus exploring new ways of innovation in the meat industry. In order to compare the effect of the addition of Cetraria islandica, we manufactured three batches (1%, 3%, 5%) and a control batch. The resulting products were analyzed internally and externally for physicochemical quality and antioxidant capacity, with highly significant differences (p<0.001) observed between the internals and externals, and sensory evaluations were performed on the whole product.

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

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