Morphometric Analysis of the Intestine of Domestic Quails (Coturnix coturnix japonica) Treated with Different Levels of Dietary Calcium

Abstract

The aim of this study was to perform a morphometric analysis of the various parts of the intestine of the domestic quail. Twenty-four female quails (Coturnix coturnix japonica) aged 37 weeks were used and accommodated in laying cages for 12 weeks. Each group was fed a standardized diet containing different quantities of calcium: 2.0%, 2.5%, 3.0% and 3.5%. The birds were weighed, killed, and samples of 1 cm were collected from the duodenum, jejunum and ileum and submitted to the histological routine. The sections obtained were stained in haematoxylin & cosin (H&E). For morphometric analysis, 30 villi and 30 crypts of each segment of the small intestine were measured in order to determine the height and area of the villi, as well as the depth of the crypts. The results showed that although the integrity of the gastrointestinal tract was maintained in all the birds treated with the different calcium levels, a calcium level of 3.0% showed the most promise. as the levels of 2.0% and 2.5% did not cause any alteration in the intestinal tract. Furthermore, a calcium level of 3.5% led to a significant reduction in the height of the villosities, and in consequence reduced the digestive and absorptive capabilities.

Flaxseed, olive and fish oil influence plasmatic lipids, lymphocyte migration and morphometry of the intestinal of Wistar rats

“…Previous studies demonstrate that the polyunsaturated fatty acids of the omega-3 series presents a beneficial effect on the preservation of the intestinal mucosa and improvement of the lipid profile 2 . Recent investigations have shown the morphophysiological importance of the intestinal loops associated with the nutrient absorption processes 10 . Another issue that still remains incongruent is speculation on the ALA activity.…”

Influência da qualidade microbiológica da água de dessedentação na morfologia intestinal de frangos de corte

“…Já Pelicano et al (2005) observaram que aditivos nutricionais aumentaram a densidade dos vilos ileais, sem interferir no duodeno e no jejuno. Os arranjos das vilosidades intestinais são controlados pela absorção dos nutrientes (Aptekmann et al 2001). As aves que ingeriram água não filtrada apresentaram maior densidade de vilos no duodeno que as que consumiram água filtrada (Quadro 3), o que demonstra que a quantidade de micro-organismos presentes na água pode interferir diretamente na estrutura do epitélio do trato intestinal.…”

“…A resposta às agressões ao epitélio ocorre por meio de modificações morfológicas no comprimento, nú-mero das vilosidades intestinais e profundidade de criptas intestinais (Aptekmann et al 2001). As avaliações, quantitativa e qualitativa, da integridade intestinal permitem analisar a capacidade digestiva e absortiva do intestino e os danos à mucosa intestinal (Gomide Junior et al 2004).…”

Effect of Partial Replacement of Soybean Protein By Sunflower Meal Without or With Essential Oil Mixture Supplementation on Growth Performance, Immune Response and Intestinal Histopathology of Broiler Chicken

“…5 random follicles in each bird were measured to measure the bursal follicular area and perimeter. The morphometric measurements were taken in a binocular microscope equipped with a clear Nicon camera and coupled with an image-analyzing system from optika (Aptekmann et al, 2001). …”