PSXV-32 Effects of increasing inclusion of soybean molasses on rumen fermentation of feedlot sheep.

Almeida, Márco Túlio Costa; Cleef, E van; Paschoaloto, Josimari Regina; Filho, E Castro; Barducci, R. S.; Soragni, G; Neto, E Zampieri; Pedro, A. San

doi:10.1093/jas/sky404.1040

Cited by 2 publications

(3 citation statements)

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“…However, in the current study, this does not appear to be the reason for the greater fat deposition in this tissue. Previous studies have shown that replacing corn by SM does not seem to lead to modifications in the profile of short-chain fatty acids when considering inclusions of up to 20% ( Almeida et al, 2018 ) and 30% SM in the diet ( Pereira-Junior et al, 2019 ). The current study did not focus on analyzing in detail the lipid metabolism in subcutaneous tissue though, thus not allowing us to infer how SM affected fat deposition and highlighting the need for further research seeking to elucidate the underpinning mechanisms.…”

Section: Discussionmentioning

confidence: 99%

Soybean molasses increases subcutaneous fat deposition while reducing lipid oxidation in the meat of castrated lambs

Pereira-Junior,

Costa,

Rodrigues

et al. 2024

Journal of Animal Science

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This study aimed to evaluate the effect of including soybean molasses (SM) on performance, blood parameters, carcass traits, meat quality, fatty acid and muscle (longissimus thoracis) transcriptomic profiles of castrated lambs. Twenty Dorper × Santa Inês lambs (20.06 ± 0.76 kg BW) were assigned to a randomized block design, stratified by BW, with the following treatments: CON - 0 g/kg of SM and SM20 - 200 g/kg of SM on DM basis, allocated in individual pens. The diet consisted of 840 g/kg concentrate and 160 g/kg corn silage for 76 days, with the first 12 days as an adaptation period and the remaining 64 days on the finishing diet. The SM20 diet increased blood urea concentration (P = 0.03) while reduced glucose concentration (P = 0.04). Lambs fed SM showed higher subcutaneous fat deposition (P = 0.04) and higher subcutaneous adipocyte diameter (P < 0.01), in addition to reduced meat lipid oxidation (P < 0.01). Soybean molasses reduced the quantity of branched-chain fatty acids in longissimus thoracis (P = 0.05) and increased the quantity of saturated fatty acids (P = 0.01). In the transcriptomic analysis, 294 genes were identified as differentially expressed, which belong to pathways such as oxidative phosphorylation, citric acid cycle, and monosaccharide metabolic process. In conclusion, diet with SM increased carcass fat deposition, reduced lipid oxidation, and changed the energy metabolism, supporting its use in ruminant nutrition.

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Section: Discussionmentioning

confidence: 99%

Soybean molasses increases subcutaneous fat deposition while reducing lipid oxidation in the meat of castrated lambs

Pereira-Junior,

Costa,

Rodrigues

et al. 2024

Journal of Animal Science

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“…Previous studies demonstrated that SBM promoted good response in sheep nutrition. The inclusion of SBM up to 20% in dry matter (DM) increased the DM consumption of confined lambs and promoted good weight gain, in addition to not changing pH values, ammonia nitrogen, and fatty acids in the rumen of adult sheep ( Almeida et al, 2018c ; van Cleef et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

“…There is still little information on the use of this byproduct in sheep feeding evaluating its implications on growth performance parameters and nutritional metabolic disorders. However, despite some studies with soy molasses showing positive results in feeding ruminants ( Drouillard et al, 1999 ; Almeida et al, 2018c ; Pereira Junior et al, 2018 ; van Cleef et al, 2018 ), there are still few studies evaluating the increasing inclusion of SBM in the sheep diet in relation to carcass characteristics and meat quality of lambs finished in confinement besides these studies use only up to 20% SBM in DM.…”

Section: Introductionmentioning

confidence: 99%

Soybean molasses to replace corn for feedlot lambs on growth performance, carcass characteristics, and meat quality

Arruda

Almeida

Bertoco

et al. 2020

Translational Animal Science

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Soybean molasses (SBM) is a byproduct of the manufacture of soy protein concentrate and has high energy value. This byproduct has a high potential for use in the nutrition of ruminant animals, mainly in the replacement of other energy feeds such as corn grain. The objective of this study was to evaluate the inclusion of SBM to replace corn grain up to 30% dry matter (DM) in the total diet on growth performance, feeding behavior, carcass characteristics, and meat quality of feedlot lambs (½ Santa Inês × ½ Dorper). Forty intact male lambs with an initial average body weight of 20.6 ± 2.5 kg and approximate age of 120 d were used. The animals were distributed in four treatments (0%, 10%, 20%, and 30% SBM), divided into five randomized blocks according to the initial weight and adapted for 16 d, with diets containing increasing concentrations of concentrate and SBM. Feeding behavior was analyzed at the beginning, middle, and final of the finishing period, and when animals reached 42 d on the finishing diet they were slaughtered. Data were evaluated using SAS software (version 9.4), by polynomial orthogonal contrasts, where the growth performance, carcass characteristics, and meat quality values were analyzed as randomized blocks, and the feeding behavior data as randomized blocks with a repeated measure over time. Significant differences were detected for the contrast 0 vs. SBM treatments, which the inclusion of SBM caused an increase (P ≤ 0.05) in ash intake but decreased the ether extract intake. The intake of DM in % body weight was higher for SBM treatments than 0% treatment (P ≤ 0.05). Feeding behavior, ruminating while lying down and drinking water presented a decreasing linear effect (P ≤ 0.05), and for feeding, efficiency increased with the addition of SBM (P ≤ 0.05). Fatty acids C14:0, C17:0, C17:1, C18:2n6c, C20:2, and C20:3n6 showed lower values with the inclusion of SBM (P ≤ 0.05), while fatty acids C22:0 and C22:6n3 increased. The values of n6 polyunsaturated fatty acids and n-6/n-3 ratio were lower (P ≤ 0.05) for SBM treatments. The values of total polyunsaturated fatty acids showed a decreasing linear effect (P ≤ 0.05) with the inclusion of SBM. The use of up to 30% SBM in DM did not impair animal growth performance and feeding behavior did not cause damages to carcass parameters and still made the meat healthier, improving the n-6/n-3 ratio, therefore can be used to feed finishing lambs.

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PSXV-32 Effects of increasing inclusion of soybean molasses on rumen fermentation of feedlot sheep.

Cited by 2 publications

References 0 publications

Soybean molasses increases subcutaneous fat deposition while reducing lipid oxidation in the meat of castrated lambs

Soybean molasses increases subcutaneous fat deposition while reducing lipid oxidation in the meat of castrated lambs

Soybean molasses to replace corn for feedlot lambs on growth performance, carcass characteristics, and meat quality

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