Publications by authors named "Leslie L McKnight"

This study investigated the effects of a proprietary commercial feed additive (FA) comprised of a blend of fatty acids, organic acids, and phytochemicals; a hydroxychloride copper (MA); as well as a water acidification product (WA), alone and in combination, on growth performance in nonvaccinated broiler chickens raised in an antibiotic-free production system. The test treatments were FA; WA; FA and WA combined (FA + WA); and FA, WA, and MA combined (FA + WA + MA). The efficacy of these treatments was compared with a negative control (CON) and a medicated feeding program (bacitracin, antibiotic growth promoter [AGP]).

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Feed additives that promote gastrointestinal health may complement coccidiosis vaccination programs in antibiotic-free broiler production systems. This study examined the effects of a commercial feed additive blend (FA) on intestinal histomorphology and inflammatory biomarkers in vaccinated Ross 708 cockerels (N = 2,160). The study was a randomized complete block design (12 blocks) with 3 dietary treatments: CON (negative control), AGP (positive control: 55 ppm of bacitracin methylene disalicylate), and FA (1.

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Gluconic acid is a carboxylic acid naturally occurring in plants and honey. In nonruminant animals, gluconic acid has been shown to increase gastrointestinal butyrate concentrations and improve growth performance, but a ruminant application remains undescribed. This experiment examined the effects of postruminal calcium gluconate (CaG) on milk production, fecal volatile fatty acid concentrations, and plasma metabolite concentrations in lactating dairy cows.

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Early nutrition has critical influences on cardiovascular disease risk in adulthood. The study objectives were to evaluate the impact of low birth weight on fasting and postprandial lipid metabolism and endothelium function in Yucatan miniature pigs. Intrauterine growth-restricted (IUGR) piglets (n = 6; 3 days old, 0.

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Mannoheptulose (MH), a sugar found in avocados that inhibits glycolysis in vitro, has been preliminarily investigated as a novel food ingredient for dogs. This study aimed to determine the effects of dietary MH, delivered as an extract of un-ripened avocado, on energy expenditure (EE) in healthy adult Labrador Retriever dogs (total of 12 dogs, 26.99 ± 0.

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There is a growing interest in the use of nutraceuticals for weight management in companion animals. The purpose of this study was to determine the effects of mannoheptulose (MH), a sugar in avocados that inhibits glycolysis, on energy metabolism in adult Beagle dogs. The study was a double-blind, randomized controlled trial where dogs were allocated to a control (CON, n = 10, 10.

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A new two-pool model to describe glucose kinetics in the steady state is presented. The pools are plasma glucose, Q 1, and tissue glucose, Q 2 (both µmol). The flows (all µmol/min) into the plasma pool (Pool 1) are absorbed glucose entry from dietary sources, labelled glucose infusion, and hepatic glucose production.

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The present study aimed to determine the effects of mannoheptulose (MH) (8 mg/kg) on energy expenditure (EE), respiratory quotient (RQ) and glycaemic response in healthy adult Beagle dogs (n 8; 9·62 (sem 0·31) kg; body condition score 4·5). The study was designed as replicated 4 × 4 Latin squares with a 2 × 2 factorial treatment structure. The dietary treatments were low carbohydrate (CHO) relative to fat diet (LC; 31 % CHO, 28 % fat) with placebo (0 mg/kg) or MH supplement and high CHO relative to fat diet (HC; 54 % CHO, 11 % fat) with placebo (0 mg/kg) or MH supplement.

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Radiotelemetry was used to evaluate diet-related elevation of blood pressure in adult Yucatan miniature swine. Systolic arterial blood pressure (SAP), diastolic atrial blood pressure (DAP), heart rate, and locomotor activity were assessed in 9- or 11-mo-old Yucatan miniature pigs fed a standard diet or a North American-type diet high in salt, fat, and sugar (HSFS). Compared with pigs fed standard diet, pigs fed HSFS diet showed markedly elevated SAP (132 ± 3 compared with 156 ± 6 mm Hg), whereas DAP was unchanged (92 ± 2 compared with 99 ± 5 mm Hg).

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Epidemiological studies have linked small birth weight and lack of breastfeeding to type 2 diabetes mellitus. This study aimed to determine if (i) small birth weight promotes and (ii) suckling prevents the development of adiposity and diabetes biomarkers in a Yucatan miniature pig model. At 3 days of age, the intrauterine growth-restricted (IUGR) piglet (n = 6) was paired with a normal weight (NW), same-sex littermate (n = 6) and fed milk replacer for 4 weeks.

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Background: Impaired fetal growth and rapid postnatal growth are associated with programming of hypertension and metabolic syndrome in adulthood.

Objectives: This study evaluated this phenomenon in a novel spontaneous intrauterine growth-restricted (IUGR) model in Yucatan miniature pigs.

Methods: IUGR piglets (n = 6, 3 days old, 0.

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Blood transfusion after joint arthroplasty occurs in up to two thirds of patients. We conducted a systematic review of the literature to determine the methodological quality of published randomized controlled trials (RCTs). We searched MEDLINE, EMBASE, and Cochrane to identify RCTs in arthroplasty with blood conservation as the primary outcome from 2001 to 2007.

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