فراتحلیل اثر استفاده از تفاله ی چغندرقند در جیره بر برخی از خصوصیّات عملکردی و تخمیری در گاوهای شیرده

Study Background: One way to reduce the use of cereals in ruminant diets is to replace them with high-energy non-starch nutritional products such as sugar beet pulp. Objective: This meta-analysis was conducted to investigate the effect of sugar beet pulp on performance and some fermentation characteristics in lactating cows. Methods: Based on a search of 21 studies included in this meta-analysis, 38 comparisons were made for average daily dry matter intake, 21 comparisons for digestibility of dry matter intake, 17 comparisons for digestibility of organic matter intake, 16 comparisons for chewing time, 18 comparisons for eating time, 18 comparisons for rumination time, and for fermentation characteristics. 29 comparisons were used for mean rumen pH, 24 comparisons for total volatile fatty acids, 26 comparisons for acetate, 26 comparisons for propionate, 26 comparisons for butyrate, 25 comparisons for acetate to propionate ratio, and finally 20 comparisons for ammonia production in the rumen. Both fixed and random effects models were used to combine effect sizes. Funnel plots and statistical tests were used to investigate the extent of publication bias. Results: This meta-analysis showed that adding sugar beet pulp to the diet had a positive effect on the average daily dry matter intake (-0.226±0.170), digestibility of dry matter intake (-0.268±0.197), digestibility of organic matter (-0.449±0.315), average rumen pH (-0.206±0.209), total volatile fatty acids (-0.364±0.170), acetate content (-0.526±0.202), propionate content (-0.281±0.338), butyrate content (-0.241±0.215), acetate to propionate ratio (-0.048±0.241), but its effect on chewing time (0.296±0.206), food intake time (0.091±0.172), rumination time (0.338±0.196), and ammonia production in the rumen (2.213±0.49) was decreasing. Final conclusion: The effect of adding sugar beet pulp on the digestibility of consumed organic matter, rumination time, total volatile fatty acids, acetate, butyrate, and ammonia produced in the rumen was significant.



Study Background: One way to reduce the use of cereals in ruminant diets is to replace them with high-energy non-starch nutritional products such as sugar beet pulp. Objective: This meta-analysis was conducted to investigate the effect of sugar beet pulp on performance and some fermentation characteristics in lactating cows. Methods: Based on a search of 21 studies included in this meta-analysis, 38 comparisons were made for average daily dry matter intake, 21 comparisons for digestibility of dry matter intake, 17 comparisons for digestibility of organic matter intake, 16 comparisons for chewing time, 18 comparisons for eating time, 18 comparisons for rumination time, and for fermentation characteristics. 29 comparisons were used for mean rumen pH, 24 comparisons for total volatile fatty acids, 26 comparisons for acetate, 26 comparisons for propionate, 26 comparisons for butyrate, 25 comparisons for acetate to propionate ratio, and finally 20 comparisons for ammonia production in the rumen. Both fixed and random effects models were used to combine effect sizes. Funnel plots and statistical tests were used to investigate the extent of publication bias. Results: This meta-analysis showed that adding sugar beet pulp to the diet had a positive effect on the average daily dry matter intake (-0.226±0.170), digestibility of dry matter intake (-0.268±0.197), digestibility of organic matter (-0.449±0.315), average rumen pH (-0.206±0.209), total volatile fatty acids (-0.364±0.170), acetate content (-0.526±0.202), propionate content (-0.281±0.338), butyrate content (-0.241±0.215), acetate to propionate ratio (-0.048±0.241), but its effect on chewing time (0.296±0.206), food intake time (0.091±0.172), rumination time (0.338±0.196), and ammonia production in the rumen (2.213±0.49) was decreasing. Final conclusion: The effect of adding sugar beet pulp on the digestibility of consumed organic matter, rumination time, total volatile fatty acids, acetate, butyrate, and ammonia produced in the rumen was significant.


Study Background: One way to reduce the use of cereals in ruminant diets is to replace them with high-energy non-starch nutritional products such as sugar beet pulp. Objective: This meta-analysis was conducted to investigate the effect of sugar beet pulp on performance and some fermentation characteristics in lactating cows. Methods: Based on a search of 21 studies included in this meta-analysis, 38 comparisons were made for average daily dry matter intake, 21 comparisons for digestibility of dry matter intake, 17 comparisons for digestibility of organic matter intake, 16 comparisons for chewing time, 18 comparisons for eating time, 18 comparisons for rumination time, and for fermentation characteristics. 29 comparisons were used for mean rumen pH, 24 comparisons for total volatile fatty acids, 26 comparisons for acetate, 26 comparisons for propionate, 26 comparisons for butyrate, 25 comparisons for acetate to propionate ratio, and finally 20 comparisons for ammonia production in the rumen. Both fixed and random effects models were used to combine effect sizes. Funnel plots and statistical tests were used to investigate the extent of publication bias. Results: This meta-analysis showed that adding sugar beet pulp to the diet had a positive effect on the average daily dry matter intake (-0.226±0.170), digestibility of dry matter intake (-0.268±0.197), digestibility of organic matter (-0.449±0.315), average rumen pH (-0.206±0.209), total volatile fatty acids (-0.364±0.170), acetate content (-0.526±0.202), propionate content (-0.281±0.338), butyrate content (-0.241±0.215), acetate to propionate ratio (-0.048±0.241), but its effect on chewing time (0.296±0.206), food intake time (0.091±0.172), rumination time (0.338±0.196), and ammonia production in the rumen (2.213±0.49) was decreasing. Final conclusion: The effect of adding sugar beet pulp on the digestibility of consumed organic matter, rumination time, total volatile fatty acids, acetate, butyrate, and ammonia produced in the rumen was significant.

Study Background: One way to reduce the use of cereals in ruminant diets is to replace them with high-energy non-starch nutritional products such as sugar beet pulp. Objective: This meta-analysis was conducted to investigate the effect of sugar beet pulp on performance and some fermentation characteristics in lactating cows. Methods: Based on a search of 21 studies included in this meta-analysis, 38 comparisons were made for average daily dry matter intake, 21 comparisons for digestibility of dry matter intake, 17 comparisons for digestibility of organic matter intake, 16 comparisons for chewing time, 18 comparisons for eating time, 18 comparisons for rumination time, and for fermentation characteristics. 29 comparisons were used for mean rumen pH, 24 comparisons for total volatile fatty acids, 26 comparisons for acetate, 26 comparisons for propionate, 26 comparisons for butyrate, 25 comparisons for acetate to propionate ratio, and finally 20 comparisons for ammonia production in the rumen. Both fixed and random effects models were used to combine effect sizes. Funnel plots and statistical tests were used to investigate the extent of publication bias. Results: This meta-analysis showed that adding sugar beet pulp to the diet had a positive effect on the average daily dry matter intake (-0.226±0.170), digestibility of dry matter intake (-0.268±0.197), digestibility of organic matter (-0.449±0.315), average rumen pH (-0.206±0.209), total volatile fatty acids (-0.364±0.170), acetate content (-0.526±0.202), propionate content (-0.281±0.338), butyrate content (-0.241±0.215), acetate to propionate ratio (-0.048±0.241), but its effect on chewing time (0.296±0.206), food intake time (0.091±0.172), rumination time (0.338±0.196), and ammonia production in the rumen (2.213±0.49) was decreasing. Final conclusion: The effect of adding sugar beet pulp on the digestibility of consumed organic matter, rumination time, total volatile fatty acids, acetate, butyrate, and ammonia produced in the rumen was significant.