Digestibility of crude protein and amino acids in corn grains from different origins for pigs

Kil, Dong Yong; Park, C.S.; Son, Ah Reum; Ji, Sang Yun; Kim, Beob Gyun

doi:10.1016/j.anifeedsci.2014.06.008

Cited by 14 publications

(13 citation statements)

References 25 publications

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“…Information on the AA compositions or digestibility of lupin hulls was not available to be compared. The BEL of CP and AA determined from the pigs fed the N-free diet agreed with the previous studies [7,17] and the predicted BEL using an equation suggested by Park et al [18]. The AID of Pro in some feed ingredients showed negative values if an experimental diet contained low Pro concentration, which may be associated with low Pro digestibility, resulting in a larger contribution from the BEL of Pro that originated from mostly mucin and enzyme secretions to the ileal digesta [19,20].…”

Section: Discussionsupporting

confidence: 89%

Standardized ileal digestibility of amino acids in cereal grains and co-products in growing pigs

Lee

Ahn

Son

et al. 2020

Asian-Australas J Anim Sci

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Objective: The objective was to determine standardized ileal digestibility (SID) of crude protein (CP) and amino acids (AA) in cereal grains and various co-products fed to growing pigs.Methods: Ten feed ingredients tested were barley (9.3% CP), lupin kernels (31.1% CP), and wheat (11.3% CP) as cereal grains, and 2 sources of corn gluten feed produced in China (21.6% CP) and Korea (24.6% CP), corn gluten meal (65.3% CP), lupin hulls (11.6% CP), rice bran (14.5% CP), soybean meal (44.8% CP), and wheat bran (15.4% CP) as co-products. Ten experimental diets were formulated to contain each ingredient as a sole source of N and an N-free diet was used to correct basal endogenous losses of CP and AA. All diets also contained 0.5% Cr2O3 as an indigestible index. A replicated 11×6 incomplete Latin square design with 11 dietary treatments, 6 periods, and 22 animals was employed. Twenty-two barrows with an initial body weight of 64.6±4.9 kg were equipped with a T-cannula in the distal ileum. An experimental period consisted of a 4-d adaptation period and a 2-d collection period.Results: The SID of CP in the barley, lupin kernels, wheat, 2 sources of corn gluten feed, corn gluten meal, lupin hulls, rice bran, soybean meal, and wheat bran were 84.7%, 90.5%, 90.4%, 77.4%, 74.6%, 89.5%, 90.4%, 74.4%, 86.9%, and 63.4% (standard error of the mean [SEM] = 5.3, p = 0.006), respectively. The respective SID values of Lys were 75.5%, 88.4%, 83.9%, 74.7%, 62.4%, 80.3%, 83.9%, 78.5%, 88.0%, and 71.2% (SEM = 3.3, p<0.001), and the SID values of Met were 83.6%, 88.7%, 89.4%, 85.7%, 78.3%, 88.9%, 89.4%, 85.3%, 91.1%, and 77.0% (SEM = 2.4, p<0.001), respectively.Conclusion: The ileal digestibility of protein and amino acids varies among the feed ingredients fed to pigs.

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Section: Discussionsupporting

confidence: 89%

Standardized ileal digestibility of amino acids in cereal grains and co-products in growing pigs

Lee

Ahn

Son

et al. 2020

Asian-Australas J Anim Sci

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“…The ADF values were greater than 3.00 %, reaching 4.27 %. These figures contrast with those found by Kil et al (2014), who assessed the digestibility of CP and amino acids in corn of different origins for pigs and obtained mostly values below 3.00 %.…”

Section: Metabolism Assaycontrasting

confidence: 96%

427 Using near-infrared spectroscopy to predict the metabolizable energy of corn for pigs

Ferreira

Fachinello

Huepa

et al. 2017

Journal of Animal Science

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The chemical composition of corn is variable and the knowledge of its chemical and energetic composition is required for an accurate formulation of the diet. This study aimed to determine the chemical composition, that is, dry matter (DM), mineral matter (MM), neutral detergent fiber (NDF), acid detergent fiber (ADF), ether extract (EE), crude protein (CP), gross energy (GE) and energetic values of different varieties (batches) of corn and validate mathematical models to predict the metabolizable energy values (ME) of corn for pigs using near infrared spectroscopy (NIRS). Corn samples were scanned in the spectrum range between 1,100 and 2,500 nm, the model parameters were estimated by the modified partial least squares (MPLS) method. Ten prediction equations were inserted into the NIRS and used to estimate the ME values. The first degree linear regression models of the estimated ME values in function of the observed ME values were adjusted. The existence of a linear ratio was evaluated by detecting the significance to posterior estimates of the straight line parameters. The values of digestible energy and ME ranged from 3,400 to 3,752 and 3,244 to 3,611 kcal kg -1 , respectively. The prediction equations, ME 1 = 4334 -8.1MM + 4.1EE -3.7NDF; ME 2 = 4,194 -9.2MM + 1.0CP + 4.1EE -3.5NDF; and ME 7 = 16.13 -9.5NDF + 16EE + (23CP × NDF) -(138MM × NDF) were the most adequate to predict the ME values of corn by using NIRS.

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“…Conventional corn and soybean meal diets for growing pigs contains approximately 50-70% of the metabolizable energy (ME) supplied by corn (Kil et al, 2014). However, the energy value and chemical composition may vary due to factors such as the cultivars used, the cultivation period, and the processing and storage.…”

Section: Introductionmentioning

confidence: 99%

Predicting the metabolizable energy of first and second corn harvests for piglets

et al. 2017

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Corn is one of the primary ingredients in swine diets, but there is a variation in its chemical composition and metabolizable energy (ME) content. Therefore, faster methods are required that can determine more accurate ME values to improve piglet diets. This study determined and predicted the ME of corn from first and second harvests for piglets. Two experiments were conducted to determine the ME values for 18 corn batches, evaluating corn from first and second harvests. The corn batches were analysed to determine the concentration of dry matter (DM), starch (ST), neutral detergent fiber (NDF), acid detergent fiber (ADF), crude protein (CP), ether extract (EE), ash, calcium (Ca), phosphorus (P) and gross energy (GE). To determine the ME values, 40 piglets were used in each experiment, grouped into a randomized block design with four replicates. The ME of the corn from the first and second crops ranged from 3281 to 3509 and from 3143 to 3652 kcal/kg on an as-fed basis, respectively, and the fitted equations to predict the ME presented a low R 2 . The best fit equation for predicting the ME of corn for piglets was determined to be ME= -6306.15 + 400.652ADF + 117.286ST + 24924.7Ca + 2489.66P -148.41CP (R Index terms: Metabolizability coefficients; prediction equations; swine. RESUMOO milho é um dos principais alimentos utilizados em rações para suínos, porém existem variações em sua composição química e conteúdo de energia metabolizável (EM). Portanto, são necessários métodos rápidos para se determinar os valores de EM de forma precisa, melhorando as dietas dos leitões. O trabalho determinou e ajustou equações de predição de EM do milho de 1 a e 2 a safra para leitões. Foram realizados dois experimentos para determinar os valores de EM de 18 cultivares de milho, avaliando-se os milhos de 1ª e 2ª safras. Foram realizadas as análises de matéria seca (MS), amido (AMI), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), proteína bruta (PB), extrato etéreo (EE), matéria mineral (MM), cálcio (Ca), fósforo (P) e energia bruta (EB) dos milhos. Para a determinação dos valores energéticos foram utilizados 40 animais em cada experimento, distribuídos em um delineamento experimental de blocos ao acaso com quatro repetições. Os valores de EM dos milhos de 1ª e 2ª safra variaram de 3281 a 3509 e de 3143 a 3652 kcal/kg MN, respectivamente, as equações ajustadas para predizer a EM apresentaram baixo R 2 . Os melhores ajustes para predizer a EM do milho para leitões são representados pelas equações EM= -6306,15 + 400,652FDA + 117,286AMI + 24924,7Ca + 2489,66P -148,41PB (R 2 =0,44), para os milhos de 1ª safra; EM = -7560,08 + 2,66895EB -120,69FDA (R 2 =0,48), para os milhos de 2ª safra; e para o período completo de safras foi ajustada a equação EM= 2848,95 + 68,5714FDN + 161,938EE -5563,5Ca -1454,2P (R 2 =0,41).Termos para indexação: Coeficiente de metabolizabilidade; equações de predição; suínos.

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Digestibility of crude protein and amino acids in corn grains from different origins for pigs

Cited by 14 publications

References 25 publications

Standardized ileal digestibility of amino acids in cereal grains and co-products in growing pigs

Standardized ileal digestibility of amino acids in cereal grains and co-products in growing pigs

427 Using near-infrared spectroscopy to predict the metabolizable energy of corn for pigs

Predicting the metabolizable energy of first and second corn harvests for piglets

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