Glycemic and Insulinemic Responses Are Affected by Age of Horse and Method of Feed Processing

Nielsen, B.D.; O′Connor-Robison, C.I.; Spooner, H.S.; Shelton, J. L.

doi:10.1016/j.jevs.2010.03.008

Cited by 19 publications

(21 citation statements)

References 26 publications

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“…Concerning the glycemic response, dis cordant results were reported in the literature attribut able to difference in the particle size of ground cereals or the level of starch intake (Vervuert and Coenen, 2006). For a starch intake of 2 g starch/kg BW per meal, the ground form of corn led to lower area under the glucose curve and peak value than the steam-flaked form (Hoek stra et al, 1999) and cracked barley showed a lower gly cemic response than pelleted form (Nielsen et al, 2010). For a lower starch intake varying between 1.2 to 1.5 g/ kg BW, no difference (P < 0.05) was detected between finely ground (2-mm sieve) and steam-flaked barley (Vervuert et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Mobile bag starch prececal disappearance and postprandial glycemic response of four forms of barley in horses1

Philippeau

Varloud²,

Julliand

2014

Journal of Animal Science

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To determine prececal starch digestibili-ty and estimate glucose uptake from the digestion of 4 forms of barley in the small intestine, 4 mature cecally fistulated geldings (449 ± 41 kg BW) fed a 62:38 (wt/wt) meadow hay:concentrate diet at 1.7 kg DM/100 kg BW were included in a 4 × 4 Latin square design experiment. During each period, horses received 80% DM of their concentrate as 1 of the 4 forms of a same batch of barley, whole grain, 2.5 mm ground, steam flaked, and pelleted. Hay was offered in 2 equal meals and concentrate in 2 unequal meals. The starch supply in the morning meal amounted 2.7 g starch/kg BW. At each period, mobile bag DM and starch disappearance was determined. Except for ground barley, each form of barley was 4 mm ground before being introduced in the bag. Nylon bags containing each substrate were intubated in the horse receiving the pelleted barley. Bags were collected in the cecum for 10 h postintubation. At each period, postprandial glycemia was measured on blood samples collected on the 4 horses via an indwelling jugular catheter just before the concentrate morning meal and for 8 h. No hay in the morning meal was given the day of the measurements. Whole blood glucose was analyzed with a portable blood glucose meter. Mobile bag prececal DM disappearance and starch disappearance depended (P < 0.01) on barley form. Prececal starch disappearance of whole barley was the lowest but no difference (P > 0.05) was detected among the 3 processed grains. No significant effect of barley form was found whatever the glycemic parameters. No significant correlation was reported between glycemic parameters and the amount of prececal mobile bag disappeared starch calculated as the starch intake in the morning meal by the mobile bag starch disappearance. To conclude, the whole form of barley exhibited the lowest prececal mobile bag starch disappearance whereas, in relationship with large individual variations, no significant variation has been shown in glycemic parameters. Further investigations should be performed to improve methods for estimating prececal starch digestion of processed cereals in the different digestive segments of horses.

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Section: Discussionmentioning

confidence: 99%

Mobile bag starch prececal disappearance and postprandial glycemic response of four forms of barley in horses1

Philippeau

Varloud²,

Julliand

2014

Journal of Animal Science

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“…Blood samples were collected from the opposite i.v. catheter at À15, À1, 1, 2, 3, 4, 5, 6,7,8,10,12,14,16,19,22,23,24,25,27,30,35,40,50, 60, 70, 80, 90, 100, 120, 150 and 180 min after glucose administration. At each sampling time, a 15 mL blood sample was collected with 4 mL transferred to a plastic tube containing lithium heparin, placed on ice and centrifuged (1500 g for 15 min at 5°C) within 30 min of collection, and 10 mL transferred to a tube without anticoagulant that was allowed to clot at room temperature for 2 h prior to centrifugation.…”

Section: Insulin-modified Frequently Sampled Intravenous Glucose Tolementioning

confidence: 99%

Effects of age and diet on glucose and insulin dynamics in the horse

Rapson

Schott

Nielsen

et al. 2018

Equine Veterinary Journal

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“…These differences have been demonstrated in studies evaluating insulin responses to i.v. glucose challenge (aged: 22.0 AE 0.7 years; young: 7.3 AE 0.6 years) [7], oral glucose challenge (aged: 14.2 AE 0.5 years; young: 6.8 AE 0.4 years) [8] and to feeding (aged: 14.2 AE 0.5 years; young: 2.0 AE 0.1 years) [9].…”

Section: Introductionmentioning

confidence: 99%

“…However, there have been few reports on the effect of diet on glucose and insulin dynamics in older horses. Nielson et al [9] reported that age was positively correlated with the magnitude of glycaemic and insulinaemic responses to feeding, while Rapson [13] reported higher tissue insulin sensitivity in aged horses adapted to a hay and grain-rich diet when compared with a hay only diet. The latter is a surprising finding in the light of earlier studies in adult horses that demonstrated reduced insulin sensitivity after adaptation to starch-rich feeds.…”

Section: Introductionmentioning

confidence: 99%

Effect of age and dietary carbohydrate profiles on glucose and insulin dynamics in horses

Jacob

Geor

Weber

et al. 2017

Equine Veterinary Journal

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Glycemic and Insulinemic Responses Are Affected by Age of Horse and Method of Feed Processing

Cited by 19 publications

References 26 publications

Mobile bag starch prececal disappearance and postprandial glycemic response of four forms of barley in horses1

Mobile bag starch prececal disappearance and postprandial glycemic response of four forms of barley in horses1

Effects of age and diet on glucose and insulin dynamics in the horse

Effect of age and dietary carbohydrate profiles on glucose and insulin dynamics in horses

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