作者: Alison N. Beloshapka
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摘要: Raw diets are now commercially available for the canine, but few studies have been conducted testing their nutritional value. The objective of this experiment was to determine effects feeding poultryand beef-based raw diets, with or without inulin yeast cell wall extract (YCW), on total tract apparent macronutrient digestibility, blood populations, serum metabolite concentrations, and fecal fermentative end-product concentrations in healthy adult dogs. Six healthy, female beagles (5.5 ± 0.5 yr; 8.5 kg) were randomly allotted following using a Latin square design: 1) Beef control; 2) + 1.4% (dry matter basis; DMB); 3) YCW (DMB); 4) Chicken 5) 6) (DMB). Each period lasted 21 d (d 0-14 adaptation; 1520 fresh urine collection; fasted sample). Dogs fed maintain BW throughout study. Food intake refusals measured daily. All dogs maintained desirable stool quality characteristics produced low volume. highly digestible (total crude protein digestibility: 88.1-92.3%; fat 96.797.8%). There minor changes shortchain fatty acid (SCFA) increased (P<0.05) inclusion diets. Fecal spermine inclusion. In general, populations metabolites within normal ranges nitrogen balance. To evaluate standardized amino digestibility six meat-based cecectomized rooster assay conducted. 38 Twenty-four Single Comb White Leghorn roosters used crop-intubated given an average 24 g each test diet. excreta collected sample. results indicated that high all diets; however, differences existed between sources. beef control diet had lowest essential (TEAA), non-essential (TNEAA), (TAA) digestibilities (90.2, 88.7, 85.9%, respectively) chicken highest TEAA, TNEAA, TAA (95.6, 95.2, 92.2%, respectively). Our agree previous feline studies, demonstrating nutrient Inulin similar large intestinal fermentation as extruded containing YCW. More research is needed confirm our data study such when long term. Introduction use unconventional including meat pets continues increase popularity. other both potential benefits risks. As seen previously cats, often because they do not contain preservatives, digestible, may improve skin/coat (Michel, 2006; Kerr et al., 2010b; Vester 2010a; 2010b). Conversely, shown pathogen exposure, imbalances some cases, be inconvenient pet owner store feed (Freeman Michel, 2001; LeJeune Hancock, Weese 2005; 2008). reduce health risks owners companion animals, Center Veterinary Medicine (CVM) has recommended specific guidelines followed by manufacturer consumer (CVM,