Influence of cellulose fibre length on faecal quality, mineral excretion and nutrient digestibility in cat

Prola, Liviana; Dobenecker, Britta; Mussa, Pier Paolo; Kienzle, Ellen

doi:10.1111/j.1439-0396.2008.00916.x

Cited by 31 publications

(27 citation statements)

References 8 publications

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“…Prola et al. (), in agreement with earlier studies by Kienzle (), found that in adult cats fed diets for 1 week with different cellulose types added at a level of 4%, faecal excretion of sodium was exponentially correlated with faecal water ( R 2 = 0.81), faecal bulk ( R 2 = 0.77) and (to a lesser extent) faecal dry matter excretion ( R 2 = 0.55).…”

Section: Sodium Balance and Dietary Requirementssupporting

confidence: 80%

“…Dietary factors include those related to faecal bulk and water content. Largely fermentable fibre sources increase the water content of faeces, and the type and inclusion level of non‐fermentable fibre increase faecal bulk, leading to increased faecal sodium excretion (Kienzle, ; Prola et al., ). On the other hand, few studies have investigated factors that affect sodium absorption in cats.…”

Section: Sodium Balance and Dietary Requirementsmentioning

confidence: 99%

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Sodium in feline nutrition

Nguyen

Reynolds²,

Zentek

et al. 2016

Animal Physiology Nutrition

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SummaryHigh sodium levels in cat food have been controversial for a long time. Nonetheless, high sodium levels are used to enhance water intake and urine volume, with the main objective of reducing the risk of urolithiasis. This article is a review of current evidence of the putative risks and benefits of high dietary sodium levels. Its secondary aim is to report a possible safe upper limit (SUL) for sodium intake. The first part of the manuscript is dedicated to sodium physiology, with a focus on the mechanisms of sodium homeostasis. In this respect, there is only few information regarding possible interactions with other minerals. Next, the authors address how sodium intake affects sodium balance; knowledge of these effects is critical to establish recommendations for sodium feed content. The authors then review the consequences of changes in sodium intake on feline health, including urolithiasis, blood pressure changes, cardiovascular alterations and kidney disease. According to recent, long-term studies, there is no evidence of any deleterious effect of dietary sodium levels as high as 740 mg/MJ metabolizable energy, which can therefore be considered the SUL based on current knowledge.

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Section: Sodium Balance and Dietary Requirementssupporting

confidence: 80%

Section: Sodium Balance and Dietary Requirementsmentioning

confidence: 99%

Sodium in feline nutrition

Nguyen

Reynolds²,

Zentek

et al. 2016

Animal Physiology Nutrition

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show abstract

“…The effects of dietary fiber on stool quality may be related to the length of cellulose fiber rather than the absolute amount of fiber [18]. Similarly, in cats the addition of dietary fiber in the form of long-fiber cellulose enhances stool quality [19]. Thus, not only the amount of fiber delivered to the large bowel, but also the type of fiber is important for stool quality.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have suggested that an overabundance of protein in the diet may be a negative factor for stool quality, whereas dietary fiber is a positive factor [16]–[19]. These findings assume that excess protein or dietary fiber is passed into the large intestine providing substrate for microbial fermentation and growth.…”

Section: Introductionmentioning

confidence: 97%

Using Gross Energy Improves Metabolizable Energy Predictive Equations for Pet Foods Whereas Undigested Protein and Fiber Content Predict Stool Quality

Hall

Melendez²,

Jewell³

2013

PLoS ONE

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Because animal studies are labor intensive, predictive equations are used extensively for calculating metabolizable energy (ME) concentrations of dog and cat pet foods. The objective of this retrospective review of digestibility studies, which were conducted over a 7-year period and based upon Association of American Feed Control Officials (AAFCO) feeding protocols, was to compare the accuracy and precision of equations developed from these animal feeding studies to commonly used predictive equations. Feeding studies in dogs and cats (331 and 227 studies, respectively) showed that equations using modified Atwater factors accurately predict ME concentrations in dog and cat pet foods (r2 = 0.97 and 0.98, respectively). The National Research Council (NRC) equations also accurately predicted ME concentrations in pet foods (r2 = 0.97 for dog and cat foods). For dogs, these equations resulted in an average estimate of ME within 0.16% and 2.24% of the actual ME measured (equations using modified Atwater factors and NRC equations, respectively); for cats these equations resulted in an average estimate of ME within 1.57% and 1.80% of the actual ME measured. However, better predictions of dietary ME in dog and cat pet foods were achieved using equations based on analysis of gross energy (GE) and new factors for moisture, protein, fat and fiber. When this was done there was less than 0.01% difference between the measured ME and the average predicted ME (r2 = 0.99 and 1.00 in dogs and cats, respectively) whereas the absolute value of the difference between measured and predicted was reduced by approximately 50% in dogs and 60% in cats. Stool quality, which was measured by stool score, was influenced positively when dietary protein digestibility was high and fiber digestibility was low. In conclusion, using GE improves predictive equations for ME content of dog and cat pet foods. Nondigestible protein and fiber content of diets predicts stool quality.

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“…Both studies used a similar inclusion level of the dietary fibre sources. Likewise, the inclusion of cellulose at a high level (17 % DM) did not alter food intake in cats (78,79) and the addition of psyllium husks and seeds did not decrease diet acceptance in cats with constipation (8) .…”

Section: In Vivo Studiesmentioning

confidence: 97%

Dietary fibre and the importance of the gut microbiota in feline nutrition: a review

2014

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Domestic cats are obligate carnivores and in this light hindgut fermentation has been considered unimportant in this species. However, a diverse microbiota has been found in the small and large intestines of domestic cats. Additionally, in vitro and in vivo studies support the hypothesis that microbial fermentation is significant in felines with potential benefits to the host. Results on microbiota composition and microbial counts in different regions of the feline gastrointestinal tract are compiled, including a description of modulating host and technical factors. Additionally, the effects of dietary fibre supplementation on the microbiota composition are described. In a second section, in vitro studies, using inocula from fresh feline faeces and focusing on the fermentation characteristics of diverse plant substrates, are described. In vivo studies have investigated the effects of dietary fibre on a broad range of physiological outcomes. Results of this research, together with studies on effects of plant fibre on colonic morphology and function, protein and carbohydrate metabolism, and the effects of plant fibre on disease conditions that require a decrease in dietary protein intake, are shown in a third section of the present review. Conclusively, for fructans and beet pulp, for example, diverse beneficial effects have been demonstrated in the domestic cat. Both dietary fibre sources are regularly used in the pet food industry. More research is warranted to reveal the potential benefits of other fibre sources that can be used on a large scale in feline diets for healthy and diseased cats.

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Influence of cellulose fibre length on faecal quality, mineral excretion and nutrient digestibility in cat

Cited by 31 publications

References 8 publications

Sodium in feline nutrition

Sodium in feline nutrition

Using Gross Energy Improves Metabolizable Energy Predictive Equations for Pet Foods Whereas Undigested Protein and Fiber Content Predict Stool Quality

Dietary fibre and the importance of the gut microbiota in feline nutrition: a review

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