Carcass and meat quality in growing-finishing pigs fed diets with plant-based protein sources alternative to genetically modified soybean meal

The objective of this study was to evaluate carcass and meat quality in growing-finishing pigs fed diets with different vegetable protein sources. It was found that partial (50% in grower diets) and complete (100% in finisher diets) replacement of protein from genetically modified soybean meal (GM-SBM) with protein from 00-rapeseed meal (00-RSM), alone or in combination with protein from faba bean seeds (FB) cv. ‘Albus’, yellow lupine seeds (YL) cv. ‘Taper’ or corn DDGS, had no significant effect on carcass quality characteristics or the chemical composition of meat. In all groups, meat samples were characterized by color typical of pork, high water-holding capacity and low pH values. A sensory analysis of the eating quality attributes of meat revealed that they were highly satisfactory; only aroma intensity was affected by the experimental factor. The study demonstrated that growing-finishing pigs can be fed complete diets containing the analyzed vegetable protein sources alternative to GM-SBM without compromising carcass or meat quality.

Analysis of gm crops allowed for using in the european union

The development of biotechnology in the field of GMOs requires states to take specific decisions to regulate the spread of genetically modified crops. In the European Union all GM crops that circulation are subject to mandatory registration, which regulates the placing on the market and circulation of genetically modified raw materials, food and feed. The article presents systematized data about the registration of genetically modified soybean, maize and rapeseed in the European Union. It was established that most of the GM crops have introduced genes that give them tolerance to herbicides of different groups. The register of the European Union currently includes 12 events of soybean (GTS 40-3-2, A2704-12, Mon 89788, MON87705, DP 356043, A5547-127, FG 72, SYHTOH 2, DAS-44406-6, DAS-68416- 4, Mon 87708, BPS-CV127-9), 5 events of maize (MZHG0JG, DAS-40278-9, GA 21, NK 603, T 25), 3 events of rapeseed (GT 73, T45, TOPAS 19/2) with tolerance to herbicides. It has been shown that a significant number of registered GM plants have a combination of several events, including tolerance to herbicides and resistance to certain insects or improving quality features of crops. Among them are one event of soybean (DP305423-1), 9 events of maize (TC 1507, DP 4114-3, MON 87411-9, MON 87427, MON 88017, DAS59122-7, Bt 176, Bt 11, DAS 1507) and one event of rapeseed (MS8xRF3). Many GM crops (one event of soybean and 6 events of maize) have introduced genes that determine the plant's tolerance to insects. Only a tiny amount of GM crops are being with altered consumer or technological qualities. In the register of genetically modified crops, all events of GM crops are currently authorized for usage for food, supplements, feed and other product. А single event of maize (Mon 810), that was allowed for cultivation at the time of this analysis was at the stage of renewal of the permit.

Quality of Soybean Products in Terms of Essential Amino Acids Composition

The content of protein, moisture content and essential amino acids in conventional and genetically modified soybean grain and selected soybean products (soybean pâté, soybean drink, soybean dessert, tofu) was analyzed in this paper. The following comparative analysis of these products has not yet been carried out. No differences were observed in the amino acid profiles of soybeans and soybean products. The presence of essential amino acids was confirmed except for tryptophan. Its absence, however, may be due not to its absence in the raw material, but to its decomposition as a result of the acid hydrolysis of the sample occurring during its preparation for amino acid determination. Regardless of the type of soybean grain, the content of protein, moisture content and essential amino acids was similar (statistically insignificant difference). Thus, the type of raw material did not determine these parameters. There was a significant imbalance in the quantitative composition of essential amino acids in individual soybean products. Only statistically significant variation was found in genetically modified and conventional soybean pâté. Moreover, in each soy product their amount was lower irrespective of the raw material from which they were manufactured. Therefore, the authors indicate the necessity of enriching soybean products with complete protein to increase their nutritional value.

“Detección de semillas de soja genéticamente modificadas, (Glycine max, L. Merril), resistente al glifosato, en muestras de semillas convencionales a través del bioensayo” / “Detection of genetically modified soybean seeds, (Glycine max, L. Merril), resistant to glyphosate, in conventional seed samples through bioassay”

A nivel mundial los organismos genéticamente modificados (GM) resistente a glifosato corresponde a 41 millones de hectáreas. La presencia de semillas de soja GM en lotes de semillas convencionales se ha convertido en un problema creciente para los comercios internacionales de la soja. Reconociendo la importancia de nuevos mercados y los productos modificados genéticamente, la tecnología tendrá que asegurar la pureza de las semillas, la genética de los productos derivados de la biotecnología a través de pruebas confiables prácticos. En este contexto, los objetivos del experimento fueron comprobar la eficacia de las pruebas de germinación con herbicidas, en diferentes sustratos (Bioensayos) para la detección de las mezclas de cultivos modificados genéticamente en muestras de las semillas convencionales. Se seleccionaran, 2 lotes de semilla convencionales, BRS 282, V1 Vmax, y un lote de semillas genéticamente modificadas V2 MUNASQA. De las semillas genéticamente modificadas se establecieron diferentes niveles, para la mezcla con las semillas convencionales, N1 0, N2 2%, N3 4%, N4 6%. Se establecieron un total de cuatro tratamientos, y los datos obtenidos fueron analizados por análisis de regresión con coeficiente de determinación. Teniendo en cuenta el estado fisiológico de las plántulas según la clasificación en normales, anormales y muertas.Se puede concluir entonces que las semillas genéticamente modificadas con resistencia al glifosato mostraron diferencias en su desenvolvimiento al someterse a los test de germinación con determinada dosis de glifosato. Indicando que de entre los cuatro test utilizados el mejor fue el método de preimbibición.