Apparent digestible and metabolizable energy content of glycerol in feed of growing pigs

Kovács, P.; Zsédely, E.; Kovács, András; Virág, G.; Schmidt, J.

doi:10.1016/j.livsci.2011.07.019

Cited by 10 publications

(10 citation statements)

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“…However, the results were similar to those obtained by Kovacs et al (2011), who found 0.05% total lipids. The NSPG composition studied in this work is distinct from the glycerin of other researchers used in other studies and may have caused different responses in the animals.…”

Section: Resultssupporting

confidence: 91%

Neutral semi-purified glycerin in starting pigs feeding

et al. 2014

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Glycerin is a major co-product resulting from biodiesel production, and it has been proposed as a highenergy source for use in swine diets. However, it is necessary to determine the nutritional value of neutral semi-purified glycerin (NSPG). In this study two experiments were carried out to determine the nutritional value, evaluated the performance and economic feasibility of starting piglets fed on neutral semi-purified glycerin. A digestibility trial (Experiment I) was conducted using 30 crossbred barrows with an initial average body weight of 42.91±1.58 kg. The glycerin levels used in the digestibility assay were 4, 8, 12 and 16% of the basal diet (corn + soybean meal based). The digestible energy (DE) and metabolizable (ME) energy values of glycerin were estimated by regression of DE and ME (kcal/kg) intake associated with glycerin vs. glycerin intake (kg). The values (as-fed-basis) of DE and ME (kcal/ kg) obtained were 3,298 and 2,531, respectively. In Experiment II, 100 piglets (50 gilts and 50 barrows) with BW = 15.14±0.06 to 30.28±0.65 were allotted in a randomized design using four inclusion levels (3.5, 7.0, 10.5 and 14%) of NSPG. There were ten replicates with two piglets per experimental unit. Additionally, a control diet containing no glycerin (0%) was formulated. The results show it is feasible to use up to 14% NSPG in piglet feed without impairing performance and plasma chemistry. Key words: Biodiesel, digestibility, glycerol, performance ResumoA glicerina é o principal coproduto da produção do biodiesel, e é proposta sua utilização como uma fonte de alto potencial energético na alimentação de suínos. No entanto é necessário determinar seu valor nutricional da glicerina semi-purificada neutralizada (GSPN). Neste estudo, foram conduzidos dois experimentos com o objetivo de determinar o valor nutricional, avaliar o desempenho e a viabilidade econômica de leitões alimentados com GSPN. O ensaio de digestibilidade (Experimento I) foi conduzido utilizando 30 suínos mestiços com peso vivo médio inicial de 42,91 ± 1,58 kg. Os níveis de substituição da ração referência pela glicerina foram 4, 8, 12 e 16%. Os valores de energia digestível (ED) e metabolizável (EM) das glicerinas foram estimados pela análise de regressão do consumo de ED e EM (kcal/kg) associada com a glicerina vs. consumo de glicerina (kg). Os valores de ED e EM (kcal/ kg), na matéria natural, obtidos foram de: 3.298 e 2.531 kcal/kg respectivamente. No experimento II, 100 leitões (50 fêmeas e 50 machos cadastros) com peso vivo inicial de 15,14±0,06 a 30,28±0,65 kg) foram distribuídos em delineamento de blocos casualizados, com quatro níveis de inclusão (3,5; 7,0;

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Section: Resultssupporting

confidence: 91%

Neutral semi-purified glycerin in starting pigs feeding

et al. 2014

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“…The global annual biodiesel production is projected to be about 41 billion litres in 2019 according to report by the OECD-FAO (2012). Furthermore it seems that biodiesel production capacities are growing all over the world (Kovacs et al, 2011). For example, the European Union produced 5,140 million liters in 2005 and its production capacity was close to 10,850 million litters in 2012 (USDA, 2012).…”

Section: Introductionmentioning

confidence: 99%

Fat, meat quality and sensory attributes of Large White × Landrace barrows fed with crude glycerine

Linares

Teruel

Egea

et al. 2014

Span. j. agric. res.

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The use of alternative raw materials like crude glycerine in animal feed to reduce final costs could be of interest as the sector seeks to increase its competitiveness. The aims of the present work were to evaluate the effect of crude glycerine on back-fat thickness and the proximate composition of pork and to examine the effect on pork quality of using growing-finishing feeds with different percentages of crude glycerine added. For this purpose 60 crossbreed (Large White × Landrace) barrows were subdivided into three groups according to the crude glycerine concentration administered in feed: C, control diet, no crude glycerine; and G2.5 and G5 with 2.5% and 5% added crude glycerine, respectively. This study evaluated proximate composition, pH, cooking losses, texture, colour coordinates, fatty acid profile, and sensorial analysis. No differences were found in any of the three groups studied (C, G2.5, G5) for measurements performed both before (with ultrasound equipment) and after slaughter (millimetre ruler). The proximate composition and the physical-chemical parameters of longissimus dorsi were similar between groups. There were no differences detected (p > 0.05) between the three groups as regards the CIELab coordinates, textural profile and sensory attributes. Therefore, 5% crude glycerine to replace corn could be used as an ingredient in pig feed without appreciably affecting the back-fat and meat quality characteristics.

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“…With regard to digestibility of nutrients and energy, the use of glycerol up to 10% in the diet did not influence the digestible and metabolizable energy in pigs (Kovács et al 2011). Moreover, in canola meal diets Solventextracted and Expeller-pressed also for pigs, glycerol increased digestible energy content (Seneviratne et al 2011).…”

Section: ++mentioning

confidence: 89%

“…Regarding metabolizable energy (ME), Kovács et al (2011) found that including glycerol (86.76% purity) in the diet of growing pigs, provided 3,218 kcal/kg of energy. For finishing pigs, the addition of 30% glycerol with a purity of 97.5%, the ME was 3,723 kcal/kg (Mendoza et al 2010).…”

Section: ++mentioning

confidence: 99%

Use of biodiesel co-products (Glycerol) as alternative sources of energy in animal nutrition: a systematic review

et al. 2014

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RESUMENEl reciente aumento en el uso de biodiesel en Brasil y en el extranjero, junto con la disponibilidad de gran cantidad de su residuo, el glicerol, ha generado un gran interés en el uso de este co-producto de varias maneras, entre ellas su aplicación en la alimentación animal. El uso de glicerol en la formulación de dietas despierta interés inmediato para obtener un producto rico en energía y alta eficiencia de utilización por los animales. El objetivo de este estudio fue evaluar los efectos del uso de la glicerina resultante de la producción de biodiesel como suplemento energético en la producción de alimentos para animales, buscando establecer protocolos adecuados para cada especie a partir de estudios anteriores. En los trabajos analizados, hubo estudios con cerdos, vacas, toros, ovejas, gallinas ponedoras y pollos de engorde. Del análisis realizado se puede inferir que el glicerol es un ingrediente alimenticio de remplazo adecuado en dietas en animales de producción.Palabras clave: alimentación, ingrediente alimentario, producción animal, desempeño. SUMMARYThe recent surge in the use of biodiesel in Brazil and abroad, coupled with the availability of large amounts of glycerol, are generating interest in the use of this co-product in several ways, such as its use in animal feed. The use of glycerol in the formulation of diets caused immediate interest to obtain a highly efficient energy rich product to use in animal production. The aim of this study was to evaluate the effects of the use of glycerol resulting from biodiesel production as an energy supplement in animal feed, as well as establishing appropriate protocols for each species based on previous studies. Most of them using pigs, cows, bulls, sheep, laying hens and broilers. It was possible to infer from these studies that glycerol was a food ingredient suitable for replacement in diets of different animal species.

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Apparent digestible and metabolizable energy content of glycerol in feed of growing pigs

Cited by 10 publications

References 10 publications

Neutral semi-purified glycerin in starting pigs feeding

Neutral semi-purified glycerin in starting pigs feeding

Fat, meat quality and sensory attributes of Large White × Landrace barrows fed with crude glycerine

Use of biodiesel co-products (Glycerol) as alternative sources of energy in animal nutrition: a systematic review

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