Evaluation of Protein Solubility as an Indicator of Underprocessing of Soybean Meal

Araba, M.; Dale, N. M.

doi:10.3382/ps.0691749

Cited by 87 publications

(55 citation statements)

References 16 publications

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“…The PS gradually decreased from 94 to 89%. Although it has been suggested that this assay may be useful in assessing protein quality in under-processed samples (Araba and Dale 1990b), it is commonly used as an indicator of soybean over-processing ; Anderson-Haferman et al . The critical level of PS associated with maintaining optimal performance is a matter of debate.…”

Section: Resultsmentioning

confidence: 99%

Impact of different processing of full-fat soybeans on broiler performance

Heger¹,

Wiltafsky²,

Zelenka³

2016

Czech J. Anim. Sci.

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ABSTRACT:The response of broilers to various conditions of expander processing of full-fat soybeans (FFSB) was studied in an experiment involving 5040 birds allocated to 10 dietary treatments with six replicates. In treatments 1-8, the proportions of FFSB in starter, grower, and finisher diets were 40, 39-43, and 34-37%, respectively. Diets for treatments 9 and 10 contained commercial soybean meal (SBM) as a main protein source. All diets were isocaloric and were formulated to contain standardized ileally digestible amino acids at levels corresponding to 95% (treatments 1-7 and 10) or 100% (treatments 8 and 9) of requirement. In treatment 1, raw FFSB was used while diets for treatments 2-8 contained FFSB processed by various combinations of times and temperatures used during conditioning and expanding. Urease activity, protein dispersibility index, and trypsin inhibitor activity of FFSB decreased as processing time and/or temperature increased while protein solubility remained relatively unchanged. Concurrently, growth performance of chickens improved (P < 0.05) and their relative pancreas weight decreased (P < 0.05). The best results in terms of feed intake, growth rate, feed conversion ratio, and carcass quality of FFSB-fed birds were obtained using expanding for 15 s at 125°C preceded by short-term (1 min, 100°C) and long-term (5 min, 100°C) conditioning. These results were not significantly different from those achieved with SBM-based diets (P > 0.05). Numerically better performance was found in 100% amino acid diets as compared with 95% diets (P > 0.05). Switching the raw FFSB diet to SBM diet caused relative pancreas weight decrease by 31% during 3 days. An opposite switch resulted in a 65% increase in relative pancreas weight during 4 days.

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Section: Resultsmentioning

confidence: 99%

Impact of different processing of full-fat soybeans on broiler performance

Heger¹,

Wiltafsky²,

Zelenka³

2016

Czech J. Anim. Sci.

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“…Proper processing conditions such as moisture content, heating time and temperature inactivate ANFs such as trypsin inhibitors and lectins, which results in improved performance when fed to monogastric animals (Araba, 1990). High processing temperatures of oilseeds has deleterious effects on proteins and amino acids due to formation of Maillard reaction products (Hurell, 1990) or denaturation (Parsons et al, 1992).…”

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confidence: 99%

Soybean as a Feed Ingredient for Livestock and Poultry

Dei¹

2011

Recent Trends for Enhancing the Diversity and Quality of Soybean Products

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“…Os resultados indicam que o farelo de soja e as sojas integrais foram submetidos a adequado processamento, conforme recomendações de ANFAR (1998), para atividade ureática, e de Butolo (2002), Nunes et al (2001) e Araba & Dale (1990), para solubilidade proteica (Tabela 2).…”

Section: Methodsunclassified

Soja integral processada em dietas para codornas japonesas em postura

et al. 2010

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RESUMO -Objetivou-se avaliar o desempenho de codornas japonesas na fase de postura alimentadas com dietas contendo soja integral processada. Utilizaram-se 320 codornas japonesas fêmeas com 29 semanas de idade e peso inicial de 186,1 ± 4,0 g, distribuídas em delineamento inteiramente casualizado, com oito repetições, cada uma com dez aves por unidade experimental.As dietas foram isocalóricas e isonutritivas para proteína bruta, lisina digestível, metionina + cistina digestível, cálcio, fósforo disponível e sódio. Assim, foram avaliadas uma dieta controle, à base de milho e farelo de soja, e outras três, com substituição parcial do farelo de soja por soja integral tostada, extrusada ou micronizada, de modo que a soja integral forneceu 50% da proteína bruta proporcionada pelo farelo de soja na dieta controle. Não foram observadas diferenças na produção e na massa de ovos, na conversão alimentar, na viabilidade das aves, na porcentagem de ovos comercializáveis, no peso específico dos ovos, na porcentagem de gema e de albúmen nem na porcentagem de casca dos ovos. A substituição de farelo de soja por soja integral tostada ocasionou redução no consumo de ração. Não foram observadas diferenças nos parâmetros estudados quando o farelo de soja foi substituído por soja integral extrusada. A substituição de farelo de soja por soja integral micronizada reduziu a variação de peso corporal das codornas, resultando em perda de peso das aves. O farelo de soja pode ser substituído, em 50% da proteína, por soja integral tostada ou extrusada em dietas para codornas japonesas em postura. Entretanto, a substituição do farelo de soja por soja integral micronizada, em 50% da proteína, é desaconselhável, pois piora o desempenho, ocasionando principalmente perda de peso das aves. Palavras-chave: Coturnix coturnix japonica, desempenho, qualidade de ovos, soja integral Processed whole soybean in diets for laying Japanese quailsABSTRACT -This work aimed at evaluating the performance of Japanese quails fed diets with processed whole soybean during the laying phase. It was used 320 Japanese female quails at 29 weeks of age with an average weight of 186.1 ± 4.0 g distributed in a complete randomized experimental design, with 8 replicates, each one with 10 quails per experimental unit. Diets were isocaloric and isonutritives for crude protein, digestible lysine, digestible methionine + cystine, calcium, available phosphorus and sodium. Thus, it was evaluated a control diet based on corn and soybean meal, and three other diets with partial substitution of the soybean meal for roasted whole soybean, extruded or micronized, so the whole soybean supplied 50% of the crude protein provided by soybean meal in control diet. No differences were observed on egg production, egg mass, feed conversion, viability of the birds, percentage of commercial eggs, egg specific weight, percentage of yolk and albumen neither on egg shell percentage. Substitution of soybean meal for roasted whole soybean reduced feed intake. It was not observed any differences in the ...

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Evaluation of Protein Solubility as an Indicator of Underprocessing of Soybean Meal

Cited by 87 publications

References 16 publications

Impact of different processing of full-fat soybeans on broiler performance

Impact of different processing of full-fat soybeans on broiler performance

Soybean as a Feed Ingredient for Livestock and Poultry

Soja integral processada em dietas para codornas japonesas em postura

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