The effects of various dietary vegetable oil sources on villi morphology and liver aldehydes in young layers

Abstract

Twenty-six-week-old laying hens (90 Lohmann Classic Brown) received dietary treatments containing canola and linseed oil at 2% inclusion levels and a control diet for 21 days. The 2% dietary linseed oil, which had higher total polyunsaturated fatty acids (ΣPUFA) and linolenic fatty acid contents, resulted in higher liver malondialdehyde and wider villi than the control group. The 2% canola and linseed oil treatments recorded smaller reproductive organs relative to live weight than the control group. It was concluded that young layers might have an anatomical response to high levels of dietary PUFA, which might improve nutrient absorption and cause a biochemical response, resulting in potentially negative cytotoxic aldehydic lipid peroxidation products. ______________________________________________________________________________________

Impact of Dietary Supplementation of Flaxseed Meal on Intestinal Morphology, Specific Enzymatic Activity, and Cecal Microbiome in Broiler Chickens

“…Morphologically, crypt depth and intestinal villus length are indicative of the intestinal absorptive capacity. High intestinal villus length triggers an increase in the mucosal surface area, which, in our study, may be due to the PUFA composition of flaxseed meal, as previously reported [54].…”

Hemp seed ( Cannabis sativa L.) cake as sustainable dietary additive in slow-growing broilers: effects on performance, meat quality, oxidative stability and gut health

“…Also, Golzar Adabi et al. ( 2016 ) hypothesized that a high level of dietary PUFA positively influenced the morphological features of the villus. In our study, there is evidence that dietary supplementation with HSC improved the intestinal morphometric parameters sustaining the broiler production performance.…”

Efectos de fuentes de grasa sobre características del hígado y la morfometría intestinal en un modelo animal a temprana edad

“…Regarding intestinal morphometry, the crypt length/depth ratio shows that the consumption of quinoa oil (T3) followed by fish oil (T4), promotes higher values that are directly related to an improvement in digestion and absorption of nutrients due to their PUFA content 23 , 24 , compared to the consumption of partially hydrogenated vegetable shortening (T2) and the basal diet (T1). Previous research suggests that, fatty acid composition modulates first, the rate of intestinal digestion and then serum lipid levels 25 , and even the consumption of vegetable oils at a level ≥6% affects intestinal absorption and promotes the formation of a thin submucosal layer, which would reduce the expansion of the intestine when a large volume of food is ingested 26 .…”

“…En la morfometría intestinal, la relación longitud/profundidad de cripta evidencia que el consumo de aceite de quinua (T3) seguido del aceite de pescado (T4), promueven valores superiores que se relacionan directamente con una mejora en la digestión y absorción de nutrientes debido a su contenido de AGPI 23 , 24 , en comparación al consumo de manteca vegetal parcialmente hidrogenada (T2) y la dieta basal (T1). Algunas investigaciones sugieren que, la composición de ácidos grasos modula primero, la tasa de digestión intestinal y luego los niveles de los lípidos séricos 25 , e incluso el consumo de aceites vegetales a un nivel ≥6% afecta la absorción intestinal y promueve la formación de una capa submucosa delgada, lo que reduciría la expansión del intestino cuando se ingiere un gran volumen de comida 26 .…”