Effect of substituting steam-flaked corn for course ground corn on in vitro digestibility, average daily gain, serum metabolites and ruminal volatile fatty acids, and bacteria diversity in growing yaks

Liu, Ying; Liu, Junhao; Hao, Lizhuang; Sun, Pu; Degen, A. Allan

doi:10.1016/j.anifeedsci.2022.115553

Cited by 2 publications

(5 citation statements)

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“…And PU also changes the physical and chemical structure of starch, increasing its digestibility during enzymatic hydrolysis [ 42 ]. Moreover, compared with MC, SC and PU, increased digestion rate and starch digestibility for 0.25–1 h, which is similar to the previous reports [ 22 , 40 ].…”

Section: Discussionsupporting

confidence: 91%

“…Since in vitro studies could be used to measure digestibility without sacrificing animals, many scholars have used the in vitro starch degradation method of the digestive tract model to simulate the in vivo hydrolysis of starch, and the in vitro time could be used to represent different parts of the small intestine [ 7 , 10 , 11 , 40 ]. It is generally believed that RDS refers to the starch that can be digested and absorbed in the small intestine within 20 min, and SDS refers to the starch that can be completely digested and absorbed in the small intestine within 20 to 120 min.…”

Section: Discussionmentioning

confidence: 99%

“…Broilers fed SC diets had higher ADG and lower F/G compared to MC diets; this finding is in line with the concluding remarks of Naderinejad et al (2016) [ 48 ], who reported that broilers fed MC diets had lower FI and body weight gain than those fed SC diets. Furthermore, compared with MC corn diets, SC diets increased ADG and in vitro, true digestibility, and decreased F/G in yaks [ 40 ]. In our study, the PU diets had the highest ADFI and F/G, indicating that the PU diets were more palatable.…”

Section: Discussionmentioning

confidence: 99%

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Effects of Processing Methods and Conditioning Temperatures on the Cassava Starch Digestibility and Growth Performance of Broilers

Wang

Nian

et al. 2023

Animals

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As an important food crop, cassava is rich in nutrients and high in starch content and is widely used in the production of industrial raw materials. However, the utilization value of cassava is limited due to the reduction of planting area and the existence of anti-nutritional factors. Therefore, we evaluated in vitro cassava starch digestibility and in vivo growth performance of broilers in a 3 × 3 factorial arrangement of treatments using three processing methods (mechanical crushing (MC), steam conditioning (SC), and puffing conditioning (PU)) and three conditioning temperatures (60, 75, and 90 °C) to screen for the optimal processing method and conditioning temperature to improve the utilization of cassava. In the in vitro cassava starch digestion study, the digestibility and digestion rate (p < 0.01) were higher at conditioned 90 °C than that at 60 or 75 °C, and PU was higher than SC and MC (p < 0.01) (0.25–2 h). The amylose content and amylose/amylopectin at conditioned 60 °C or PU were lower (p < 0.01) than that of 75 or 90 °C or SC, whereas the opposite was true for amylopectin content (p < 0.01). The resistant starch content of SC or PU was lower (p < 0.01) than MC. In the in vivo study, broilers fed diets conditioned at 60 °C or SC had a lower (p < 0.05) feed-to-gain ratio than those fed diets conditioned at 90 °C or PU diets. The ileum apparent digestibility of starch and AME were higher (p < 0.05) for broilers fed SC diets than for those fed MC diets. These results indicate that cassava starch promoted starch digestion rate by reducing amylose content and amylose/amylose under PU combined with a conditioning temperature of 60 °C, ileum digestibility of starch in broilers fed SC diets was higher than MC diets regardless of conditioning temperature, and SC diets increased AME and decreased F/G to promote growth performance of broilers.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effects of Processing Methods and Conditioning Temperatures on the Cassava Starch Digestibility and Growth Performance of Broilers

Wang

Nian

et al. 2023

Animals

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“…Serum biochemical indices are crucial for assessing the metabolic status of nutrients metabolism and the health status of livestock [ 24 , 42 ]. In this study, all biochemical parameters, with the exception of ALB and ALT levels in three treatment groups, were found within the reference range [ 37 , 38 , 39 ].…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, lambs subjected to restricted grazing (4 h) and indoor feeding exhibited similar FBW and ADG compared to those in the indoor feeding system, which leads to healthier meat with higher protein and n-3 polyunsaturated fatty acids (PUFA) contents and lower saturated FA n-3/n-6 PUFA ratio [ 11 , 21 , 22 ]. In addition, changes in feeding regimes can affect rumen fermentation characteristics and serum metabolites directly, with consequences for health and nutrient utilization, ultimately affecting fattening performance and meat quality [ 16 , 23 , 24 ]. Furthermore, the gastrointestinal microbiota of ruminants also plays a crucial role in animal physiology, nutrient digestion, body health, and productivity [ 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Stall-Feeding of Sheep on Restricted Grazing: Effects on Performance and Serum Metabolites, Ruminal Fermentation, and Fecal Microbiota

Zhao

Zhang

Yao

et al. 2023

Animals

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This study investigated the effects of three feeding systems, indoor feeding (CONT), indoor feeding with time-restricted grazing artificial pasture (4 h/day, G4H), and indoor feeding with an eight-hour daily grazing artificial pasture (G8H), on the growth performance, serum metabolites, ruminal fermentation, and fecal microbiota composition of lambs. Average daily gain showed a tendency (p = 0.081) to be higher for the G4H group compared with the CONT group. Moreover, feeding systems did not have a significant effect on most of the serum biochemical indicators in lambs. Concentrations of serum glutathione peroxidase and immunoglobulins (IgA, gG, and IgM) were significantly lower (p < 0.01) in the CONT group. Additionally, a tendency towards higher levels of volatile fatty acids, acetate, and butyrate was found in animals of the G4H group compared to the CONT group. Furthermore, fecal microbiota composition was altered in G4H and G8H groups, resulting in the increased relative abundance of Firmicutes and Ruminococcaceae UCG-005, as well as the decreased relative abundance of Ruminobacter compared with the CONT group. Overall, these results suggest that indoor feeding with restricted grazing time does not significantly affect fattening performance or rumen fermentation but enhances antioxidation and immune function activity and also alters fecal microbiota composition.

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Effect of substituting steam-flaked corn for course ground corn on in vitro digestibility, average daily gain, serum metabolites and ruminal volatile fatty acids, and bacteria diversity in growing yaks

Cited by 2 publications

References 64 publications

Effects of Processing Methods and Conditioning Temperatures on the Cassava Starch Digestibility and Growth Performance of Broilers

Effects of Processing Methods and Conditioning Temperatures on the Cassava Starch Digestibility and Growth Performance of Broilers

Stall-Feeding of Sheep on Restricted Grazing: Effects on Performance and Serum Metabolites, Ruminal Fermentation, and Fecal Microbiota

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