Effect of pectin extracted from citrus pulp on digesta characteristics and nutrient digestibility in broilers chickens

Abstract

-The experiment was carried out to evaluate the effects of continuous ingestion of pectin on intestinal viscosity, intestinal transit time, excreta moisture content, nutrient digestibility and energy metabolism of broilers at starter and growth phases. We used 240 one-day-old Cobb male broiler chicks, distributed in a completely randomized experimental design. Treatments consisted of four concentrations of pectin (0, 10, 30 and 50 g kg -1 ) with six replicates of 10 birds each. The ingestion of pectin supplied in the feed by broilers at the starter phase increased intestinal viscosity and intestinal transit time, reduced excreta moisture, improved the use of apparent metabolizable energy, nitrogen-corrected apparent metabolizable energy, coefficient of apparent metabolizability, coefficient of nitrogen-corrected apparent metabolizability, apparent digestibility coefficient of crude protein and organic matter; worsened calcium utilization and coefficients of apparent digestibility of dry matter; and did not influence the coefficients of apparent digestibility of crude fat, ash and phosphorus. Pectin ingestion during the growth phase increased intestinal viscosity and apparent digestibility coefficients of ash and organic matter, but decreased the dry matter, crude fat, crude protein and calcium. Intestinal transit time, energy metabolism and apparent digestibility coefficient of crude protein showed quadratic behavior according to pectin levels in the feed. Therefore, pectin ingestion by broilers at the starter phase increases intestinal viscosity and intestinal transit time, reduces excreta moisture and improves energy utilization, whereas at the growth phase nutrient digestibility is decreased.

The effects of dietary dried fruit pomaces on growth performance and gastrointestinal biochemistry of turkey poults

“…According to other authors, the composition and physicochemical properties of dietary fibre induce changes already in the upper gastrointestinal tract. Citrus pectins increased intestinal viscosity, intestinal transit time and reduced excreta moisture content (Silva et al., ). In a study by Brenes et al.…”

“…As fruit pomaces are characterised by a high content of fibre–polyphenol complexes, they can be incorporated into animal diets to deliver two types of effects: to protect the gastrointestinal system and tissues against the harmful effects of oxidation (Vitaglione et al., ; Brenes et al., ; Saura‐Calixto, ) and to improve the function of the intestinal ecosystem (Silva et al., ). Standard cereal–soya bean diets have a relatively low content of crude fibre (approximately 3.5%) (Jankowski et al., ), and they can be enriched with fibre to stimulate the development and function of the gastrointestinal tract (Mateos et al., ).…”

Bilberry pomace in rabbit nutrition: effects on growth performance, apparent digestibility, caecal traits, bacterial community and antioxidant status

“…Vegetable by-products and pomace can be incorporated into animal diets, without adverse results on growth performances and digestibility (Dabbou et al, 2014), and can help to reduce the feed costs. Moreover, due to the presence of bioactive components they can prevent the harmful effects of oxidation (Saura-Calixto, 2011) and improve the function of the intestinal ecosystem (Silva et al, 2013). Nevertheless, Gidenne et al (2010) demonstrated that the use of fibrous sources rich in insoluble fibre fractions, even if of low nutritional value, affects the retention rate of the digesta, microbial activity, fibre fermentability and caecal turnover.…”

The efficacy of multy-enzymes supplementation on low energy corn-soybean meal basal diet containing rice bran on growth performance of broilers

“…It well established that dietary fibre causes high digesta viscosity leading to decrease nutrient digestibility. The decrease in nutrient digestibility will result in low nutrient absorption including energy absorption and availability to animals (Mateos et al, 2012;Silva et al, 2013;Krás et al, 2013;Liu et al, 2011). The correction for N equilibrium decreased the AME value of rice bran from 2032 Kcal/kg DM to 1908 kcal/kg DM.…”

“…The high fibre content in broiler diets has been reported to lower nutrient digestibility, growth performance, increasing digesta viscosity and wet litter (Krás et al, 2013;Liu et al, 2011, Silva et al, 2013, Sadegi et al, 2015. On the other hand, Mateos et al (2012) explained that feeding broiler chickens with moderate level of fibre might improve development of digestive organ, production of digestive enzyme, and growth performance.…”