Determination of standardised ileal digestibility of amino acids in high-fibre feedstuffs and additivity of apparent and standardised ileal amino acids digestibility of diets containing mixtures of maize, sorghum, and soybean meal

Olukosi, Oluyinka A.; Pilevar, Mohammad; Ajao, Adeleye M.; Veluri, S; Lin, Yang

doi:10.1080/00071668.2022.2163878

Cited by 2 publications

(3 citation statements)

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“…These complexes are resistant to enzymatic protein digestion and can reduce the digestibility of amino acids in the ileum [53]. The results of the present study agree with previous studies that reported lower amino acid digestibility in poultry-fed high-fiber diets containing SHs or other fiber sources [49,54]. However, other studies have reported higher or similar amino acid digestibility in poultry-fed diets containing SHs or extruded SHs [55].…”

Section: Discussionsupporting

confidence: 90%

“…Consistent with previous findings, the SH diets reduced the SID of most of the AAs, including arginine, histidine, isoleucine, lysine, cysteine, valine, and tyrosine [49]. The reduction in the SID of AAs observed with the inclusion of high levels of SHs in the diet may be attributed, at least in part, to the higher lignin content present in SHs compared to SBM [31].…”

Section: Discussionsupporting

confidence: 89%

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The Chemical Composition of Soyhulls and Their Effect on Amino Acid and Nutrient Digestibility in Laying Hens during the Peak of Production

Shuaib,

Paneru,

Hafeez

et al. 2023

Animals

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This study investigates the chemical composition of soyhulls (SHs) as an alternative feed ingredient and their effect on nutrient and amino acid (AA) digestibility in laying hens during peak production. A total of 200 golden brown hens (28 weeks old) were subjected to random allocation across 5 dietary treatments: a corn–soybean meal (SBM) reference diet and 4 test diets with 25% SHs from different mills (SH1, SH2, SH3, and SH4). Each treatment was replicated four times with ten birds per replicate. Digesta samples were collected during three phases (28–32, 32–36, and 36–40 weeks of age) to measure apparent metabolizable energy (AME), the apparent ileal digestibility (AID) of nutrients, and the standard ileal digestibility (SID) of AAs. The SBM diet had 30.0% crude protein (CP) and 3.78% crude fiber (CF), while the SH diets had 21.0 to 21.5% CP and 11.6% CF. The findings revealed that the AME was lower (p < 0.05) with SH diets (2404 kcal/kg) compared to the SBM diet (2627 kcal/kg) in all three phases. The SH diets had a lower AID of dry matter (DM), crude protein (CP), ash, ether extract (EE), and crude fiber (CF) than the SBM diet by an average of 2.88, 2.25, 4.93, 4.99, and 3.36%, respectively. The AID of nitrogen-free extract (NFE) was higher in the SH diets than the SBM diet by 3.42% in all three phases (p < 0.05). The SH diets had lower uric acid excretion (about 66.93 mg/100 mL) than the SBM diet (about 76.43 mg/100 mL) on average in all three phases. The SH diets had a lower SID of arginine, histidine, isoleucine, lysine, cysteine, valine, and tyrosine than the SBM diet by 2 to 10%, while the SID of methionine was higher in the SH diets than the SBM diet by 2.2% on average in all three phases (p < 0.05). The SH from Sadiq Brother Feed (SH1) had the highest AME and AID of DM, ash, CP, EE, CF, and the SID of AA among the SH diets. These results indicate that SH can partially replace SBM in laying hen diets, but the source and quality of SH should be considered.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 89%

The Chemical Composition of Soyhulls and Their Effect on Amino Acid and Nutrient Digestibility in Laying Hens during the Peak of Production

Shuaib,

Paneru,

Hafeez

et al. 2023

Animals

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“…When formulating diets for poultry and pigs, it is accepted that the energy and nutrients in dietary ingredients can be added together to supply the required nutrient brought by the diet [4]. The concept of nutrient additivity in diets was studied in swine [5,6], broilers [7][8][9] and ducks [10]. However, these authors pointed out that the metabolizable energy and amino acid values may not always be additive due to some associative effects.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Utilization of Metabolizable Energy for Carcass Energy Retention in Broiler Chickens Fed Maize, Wheat or a Mixture

Pirgozliev,

Hammandy,

Mansbridge

et al. 2024

Poultry

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The study aimed to quantify carcass fat and protein retention, and the efficiency of carcass energy utilization (Kre) resulting from feeding broiler chickens diets containing wheat, maize or mixtures of both as the major cereal ingredient. The apparent metabolizable energy (AME) of the four cereal samples was determined in adult cockerels. There was a linear (p < 0.001) increase in AME with increasing amounts of maize within the four cereal mixtures, with analyses indicating that the AME of maize was 1.4 MJ/kg greater than that of wheat. A second bioassay with growing chickens was used to determine Kre in each cereal, measured as carcass fat and protein from 7 to 21d age. Increasing proportions of maize resulted in linear increases in carcass fat and energy retained from fat (p < 0.001). However, the carcass protein and energy retained from protein did not follow the same pattern as fat (p = 0.121), but rather decreased numerically (L = 0.032). The Kre tended (p = 0.060) to increase with greater proportion of maize in a linear fashion (L = 0.009). Although AME values of cereals were confirmed to be additive, this could not be confirmed for Kre. This data can be used for optimizing energy utilization models for growing broilers.

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Determination of standardised ileal digestibility of amino acids in high-fibre feedstuffs and additivity of apparent and standardised ileal amino acids digestibility of diets containing mixtures of maize, sorghum, and soybean meal

Cited by 2 publications

References 40 publications

The Chemical Composition of Soyhulls and Their Effect on Amino Acid and Nutrient Digestibility in Laying Hens during the Peak of Production

The Chemical Composition of Soyhulls and Their Effect on Amino Acid and Nutrient Digestibility in Laying Hens during the Peak of Production

Efficiency of Utilization of Metabolizable Energy for Carcass Energy Retention in Broiler Chickens Fed Maize, Wheat or a Mixture

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