Relationships between broiler final weights and histomorphometric parameters of certain segments of the intestine

Branislav Baltić ,Ivana Branković Lazić ,Boris Mrdović ,Radmila Mitrović ,Radmila Marković ,Vesna Djordjević ,Jelena M Janjić

doi:10.1088/1755-1315/854/1/012006

Abstract

The aim of this study was to determine relationships between final mass of broilers and the histomorphological properties of individual segments of the gastrointestinal tract. This is confirmed by the obtained results, which indicate a strong and significant correlation between compared parameters. A strong significant (p<0.05) correlation (r=0.866) was found between the broiler final weight and the duodenal villus length, and between the broiler final weight and the caecal villus length (r=0.918). Correlation between the broiler final weight and the duodenal villus width (r=0.841), as well the caecal villi width (r=0.918) was strongly significant (p<0.05). Between the crypt depths in caecum correlation was medium and significant (r=0.701, p<0.05). It was determined that between the broiler final weights and the ratio of villus length and crypt depth there is a significant medium correlation (r = 0.736, p<0.05). A strong (r = 0.924) significant (p <0.05) correlation was found between the broiler final weight and the ratio of villus length and caecal crypt depth. Between final mass of broilers and other histomorphological properties of individual segments of intestine there was no significant correlation.

Highlights

In order to improve genetic potential of highly selected broiler hybrids (Cobb, Ross), appropriate conditions of health care, accommodation, and especially nutrition are required
The aim of this study was to examine the correlation between the final mass of broilers and the histomorphological properties of individual segments of the gastrointestinal tract
Final body weight, average daily gain and feed conversion are most often used as indicators of production results in poultry nutrition [5,6]. These parameters can be correlated with the histomophrometric properties of the gastrointestinal tract (GIT)

Summary

Introduction

In order to improve genetic potential of highly selected broiler hybrids (Cobb, Ross), appropriate conditions of health care, accommodation, and especially nutrition are required. Maintaining a balanced ratio of harmful and useful microorganisms (eubiosis) in the poultry GIT has special importance for its health, and the health of the animals, and the production results and economy of meat production. Antibiotics (growth promoters) were used for the protection and health of animals’ GIT. Their use has caused two negative phenomena, one of which is the finding of antibiotic residues in meat (eggs), and the other, certainly was a much more serious phenomenon, bacterial resistance, which is why their use is forbidden. In order to preserve animal health in modern intensive poultry production, alternatives to antibiotics are required.

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