Whole body glucose turnover in growing and non-productive adult ruminants: meta-analysis and review

Abstract

-The objectives of the present paper were to review and quantitatively determine the influence of the nutritional factors on whole body glucose turnover in growing and adult non-productive ruminants. A meta-analysis approach was used. The dietary grain: forage ratio significantly increased the slope of the relationship between glucose turnover and metabolisable energy intake. This effect was probably associated with the inclusion of maize rather than any other grain source in the diet. The analysis pointed out the possible differences in response between growing and adult non-productive animals, and suggested that the performance level of the animals (and their glucose requirements) could contribute to regulating whole body glucose turnover. This aspect would warrant further investigation.whole-body glucose turnover / meta-analysis / ovines / bovines

Propionate supplementation did not increase whole body glucose turnover in growing lambs fed rye grass

“…It was closer to values predicted for growing bovines than to values predicted for adult ovines [40] given the plane of feeding applied. It was also closer to the values predicted for adult ovines fed concentrate based diets than forage based diets [40].…”

“…It was closer to values predicted for growing bovines than to values predicted for adult ovines [40] given the plane of feeding applied. It was also closer to the values predicted for adult ovines fed concentrate based diets than forage based diets [40]. Only one other study reported glucose turnover data with grass diets being fed to adult non producing ewes [41], the results were close to the values predicted for concentrate based diets [40].…”

Effect of supplemental calcium propionate on insulin action to blood glucose metabolism in adult sheep

“…The inconsistency of effects of supplemental propionate on blood glucose metabolism may be involved in the dose, duration or method of propionate supplementation, the stage of animals, or feeding managements. Although basal blood GTR was within the ranges of blood GTR as determined by the isotope dilution methods using stable and radio isotopes, blood GTR for the Prop diet seemed to be near the upper margin [12,18,28,29]. Because blood GTR is influenced by the type of diet, energy intake and physiological status [28][29][30], these factors may be related.…”

“…Although basal blood GTR was within the ranges of blood GTR as determined by the isotope dilution methods using stable and radio isotopes, blood GTR for the Prop diet seemed to be near the upper margin [12,18,28,29]. Because blood GTR is influenced by the type of diet, energy intake and physiological status [28][29][30], these factors may be related. OrtiguesMarty et al [29] reviewed the relationship between glucose turnover rate and ME intake in growing ovines, growing bovines and adult ovines, and suggested that growth stage on glucose turnover rate is probably as important as the effect of animal species.…”

“…Because blood GTR is influenced by the type of diet, energy intake and physiological status [28][29][30], these factors may be related. OrtiguesMarty et al [29] reviewed the relationship between glucose turnover rate and ME intake in growing ovines, growing bovines and adult ovines, and suggested that growth stage on glucose turnover rate is probably as important as the effect of animal species.…”