The effect of different carbohydrase and protease supplementation on apparent (ileal and overall) digestibility of nutrients of five hulless barley varieties in young pigs

Yin, Yulong; Baidoo, Samuel K; Jin, Ling; Liu, Y. G.; Schulze, H.; Simmins, P.H.

doi:10.1016/s0301-6226(01)00215-9

Cited by 81 publications

(54 citation statements)

References 22 publications

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“…The SID and cSID of AA in the present genotypes was not affected or even increased with increasing content of total AX or soluble AX. This is not in accordance with literature as AX, as part of NSP, are known to reduce nutrient digestibility (Yin et al, 2001a). Again, it needs to be emphasized that due to low content and variation of AX among barley genotypes a relationship between SID of AA and AX contents could be of minor importance.…”

Section: Discussioncontrasting

confidence: 55%

“…Reported total NSP content differed between 9.2% and 13.3% (for hulled and hulless barley; Baidoo and Liu, 1998;Yin et al, 2001a), whereas present genotypes ranged between 14.7% and 16.2%. Greater NSP values in the present genotypes could possibly be attributed to different environmental conditions during the growing season, as according to Holtekjølen et al (2008), a higher humidity in July similar to the conditions in the harvest year of the present barley genotypes may result in higher NSP contents.…”

Section: Discussionmentioning

confidence: 72%

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Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Spindler

Mosenthin

Rosenfelder

et al. 2016

animal

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To determine chemical composition, physical characteristics and standardized ileal digestibility (SID) of CP and amino acids (AA) in eight current hulled barley genotypes, an experiment with growing pigs has been conducted. These genotypes included Yool, Campanile, Lomerit, Travira, Anisette, Canberra, Metaxa and Fridericus. Growing barrows with an average initial BW of 30 ± 2 kg were surgically fitted with simple T-cannulas at the distal ileum, and allotted to an 8 × 9 Youden square design with eight periods of 6 days each and nine pigs. Barley was the sole dietary source of CP and AA. On average, the eight genotypes contained on as-fed basis 10.7% CP, 15.2% total non-starch polysaccharides (NSP), 17.1% NDF and 4.1% β-glucan, and had a mean test weight (TW) of 72.2 kg/hl. The SID of CP in the barley genotypes varied from 69% to 74%, and was greater ( P < 0.01) for genotypes Travira, Anisette and Metaxa compared to Yool and Campanile. Standardized ileal digestibility of Lys, Met and Trp ( P < 0.05) but not of Thr differed between genotypes. Moreover, barley genotypes differed in their standardized ileal digestible content (cSID) of CP and AA. Furthermore, SID and cSID of CP and most AA linearly decreased ( P < 0.05) with increasing NDF and total sugar content. Standardized ileal digestibility of CP and some AA and cSID of CP and most AA decreased linearly with increasing TW ( P < 0.05). Additionally, SID and cSID of CP and AA of most barley genotypes were lower when compared to tabulated values. In conclusion, a comprehensive database on chemical composition and SID of CP and AA in eight current barley genotypes has been made available. However, as present SID values are lower compared to feed tables, adjustments are required to minimize the risk of overestimating the actual protein value of barley for pigs.

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Section: Discussioncontrasting

confidence: 55%

Section: Discussionmentioning

confidence: 72%

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Spindler

Mosenthin

Rosenfelder

et al. 2016

animal

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“…tir de Bacillus licheniformis, como aditivos na ração, aumentaram a digestibilidade do amido do sorgo, na alimentação de cordeiros. Yin et al (2001) testaram o efeito de um complexo enzimático formado por carboidrases e proteases na alimentação de suínos, e verificaram que houve melhora na digestibilidade da matéria seca, energia bruta e proteína bruta.…”

Section: Resultsunclassified

Enzimas digestivas exógenas na alimentação de juvenis de tambaqui

Nunes

Cavero

Pereira-Filho

et al. 2006

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito da adição na ração das enzimas digestivas exógenas amilase, lipase e protease sobre o desempenho de tambaqui, em três experimentos independentes. Em cada experimento foi avaliado o efeito da inclusão de uma enzima na ração em diferentes porcentagens: 0,0, 0,05, 0,1 e 0,2%, cada uma com quatro repetições, com 28 dias de duração. Foram realizadas biometrias do peso inicial, para homogeneização da amostra, e do peso final a fim de verificar o efeito dos tratamentos sobre o desempenho dos peixes. Em cada unidade experimental foram estocados dez peixes, alimentados duas vezes ao dia (8 e 14h) até a saciedade aparente, com ração comercial extrusada com 28% de proteína bruta, triturada, adicionada de enzima e depois peletizada. Ao final do experimento, o ganho de peso, a conversão alimentar aparente e o crescimento específico dos peixes, apresentaram diferenças significativas entre os tratamentos. As enzimas exógenas amilase a 0,05% e lipase a 0,2% na ração influenciaram o desempenho zootécnico de juvenis de tambaqui. A adição de protease exógena não apresenta a mesma influência.Termos para indexação: Colossoma macropomum, piscicultura, nutrição de peixes, amilase, lipase, protease. Exogenous digestive enzymes in tambaqui juvenile feedingAbstract -The objective of this work was to evaluate feed addition of exogenous digestive enzymes amylase, lipase, and protease on the tambaqui performance in three independent experiments. In each experiment, the effect of different percentages of enzyme inclusion in the feed was evaluated: 0.0, 0.05, 0.1 and 0.2%, each with four repetitions, in a 28 days duration. Initial biometrics for the initial weight were performed for sample homogenization, and for the final weight, to verify treatments effect on fish performance. Each experimental unit was stocked with ten fish, and fed on up to apparent satiety twice a day (8 and 14h), on a commercial extruded feed containing 28% crude protein, grounded, added enzymes levels and then pelleted. At the end of the experiment weight gain, apparent feed conversion, and specific growth rate presented significant differences between treatments. Exogenous enzymes amylase at 0.05% and lipase at 0.2% in diets influenced juvenile tambaqui zootechnical performance. The addition of the exogenous protease did not present the same influence.

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“…The database A database containing AID of CP and AA in 38 barley samples for pigs was extracted from a total of 26 peer-reviewed papers with data on AID of CP and AA in barley including studies of Baidoo and Liu (1998) (3);De Lange et al (1990) (1); Fan et al (1993) (1); Fan and Sauer (1995) (1); Fan and Sauer (2002) (6); Fernández-Fígares et al (2008) (1) ;Fuller et al (1994) (1); Furuya and Kaji (1991) (1); Green et al (1987) (1); Ige et al (2010) (2); Jørgensen et al (1997) (2); Lin et al (1987) (1); Nitrayová et al (2006) (1); Nyachoti et al (1997) (1); Pedersen et al (2007) (1); Perttilä et al (2002) (1); Reverter and Lindberg (1998) (1); Rowan and Lawrence (1986) (1); Sauer et al (1977) (1); Sauer et al (1981) (4); Schröder et al (1989) (1); Stein et al (1999) (1); Taverner et al (1981b) (1); Yin et al (1993) (1); Yin et al (2001a) (1) and Yin et al (2002) (1) (number of barley samples per study is given in brackets). The selection of these peer-reviewed papers was based on several criteria including (1) complete information on diet composition; (2) complete information on CP and AA contents of the diet and (or) barley; (3) use of barley as the only source of protein in the diet; (4) diets being devoid of feed additives.…”

Section: Methodsmentioning

confidence: 99%

Evaluation through literature data on standardized ileal digestibility and basal ileal endogenous loss of amino acids associated with barley in pigs

Spindler

Mosenthin

Eklund

2014

Animal

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This meta-analysis aimed to estimate the standardized ileal digestibility (SID) and the basal ileal endogenous amino acid losses (IAA end ) in barley for growing pigs. In total, 38 different barley treatments published in 26 peer-reviewed papers were used for the meta-analysis containing information on dietary composition including amino acid (AA) contents of the assay diets, and (or) barley samples, as well as apparent ileal digestibility (AID) of AA in barley. The SID of AA was determined by either correcting AID of AA for their IAA end or by regression analysis between the apparent ileal digestible and total dietary AA contents. The SID values obtained by correcting the AID values for their IAA end amounted to 70%, 77%, 74% and 63% for Lys, Met, Thr and Trp, whereas those based on regression analysis method were 82%, 82%, 69% and 55%, respectively. Estimates of basal ileal endogenous loss of CP in ileal digesta varied considerably and averaged 11.84 g/kg dry matter intake (DMI), whereas IAA end for indispensable AA ranged from 0.05 g/kg DMI for Trp to 1.90 g/kg DMI for Leu. In most cases, these estimates were considerably higher than previously reported values for IAA end . The results of the present regression analysis indicate for most AA higher SID values compared with SID of most AA that were obtained by correcting AID values for IAA end . In view of the observed high variations in IAA end and the low CP content of the barley samples, estimating SID of AA based on literature data by means of the regression method may improve accuracy of SID coefficients for barley. In contrast, transformation of AID values into their corresponding SID values by using a constant correction factor for IAA end adds an additional source of error, thereby reducing the precision in estimating SID of AA.Keywords: amino acids, meta-analysis, pigs, standardized ileal digestibility, barley ImplicationsRegression analyses between the apparent ileal digestible and the total dietary amino acid (AA) content in barley samples have proven to be superior over the calculation of standardized ileal digestibility (SID) by correcting apparent ileal digestibility (AID) values for their ileal endogenous amino acid (IAA end ). According to regression analysis, SID of most AA in barley was >80%, whereas SID of most AA obtained by correcting AID values for IAA end was below 80%. In particular, lower SID of Lys, Thr and Trp in comparison to other indispensable AA need to be compensated for, for example, through supplementation with crystalline AA in barley diets for pigs. IntroductionThe world production of barley amounts to over 134 million tons annually (FAOSTAT, 2011), therefore, and due to its low purchase cost, barley is the most important crop in diets for livestock after wheat and maize (Leterme et al., 2000;Hennig et al., 2006; FAOSTAT, 2011). The protein content of cereal grains including barley is considerably lower than that of protein supplements such as soya bean meal, but due to their high dietary inclusion level, cereal grains can su...

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The effect of different carbohydrase and protease supplementation on apparent (ileal and overall) digestibility of nutrients of five hulless barley varieties in young pigs

Cited by 81 publications

References 22 publications

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Enzimas digestivas exógenas na alimentação de juvenis de tambaqui

Evaluation through literature data on standardized ileal digestibility and basal ileal endogenous loss of amino acids associated with barley in pigs

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