BY-PRODUCT OF PASSION FRUIT SEED (Passiflora edulis) IN THE DIET OF BROILERS

Abstract

Two experiments were performed to determine the chemical composition of byproduct of passion fruit seed (BPFS) and to evaluate the performance, blood variables, carcass yield, meat quality and oxidation of broilers fed diets containing increasing levels of BPFS. In experiment 1, a total of 60 21-d-old Cobb male broilers were distributed in a completely randomized design, with two treatments (reference feed and test diet) and five replicates of six birds each. Energy content in BPFS was 3,945 kcal kg −1 of apparent metabolizable energy corrected for nitrogen balance (AMEn) and 10.68 % CP. In experiment 2, a total of 864 1-dayold male Cobb broilers were distributed in a completely randomized design, with six treatments (control, 2.5%, 5.0%, 7.5%, 10%, and 12.5% BPFS) and six replicates of 24 birds each. Feed conversion linearly worsened (P<0.05). At 21 days of age, blood triglyceride levels linearly decreased (P<0.05). At 42 days, there was a linear decrease in villus height in the jejunum as the inclusion of BPFS. Meat quality was not affected by the different levels of BPFS. For lipid oxidation, used samples of thigh in a 6x3 factorial design (6 levels of addition of BPFS and 3 storage periods) with 4 replications. In the treatments with 5% BPFS, the phenolic compounds present in the byproduct led to a delayed and reduced oxidation. In conclusion, from 1 to 21 and 1 to 42 days, BPFS can be used up to 5% in broiler diets without harming the parameters evaluated.

Nutritional composition, metabolizability coefficients and use of passion fruit pulp waste in the diet of meat quail

“…High amounts of fiber reduce the total diet digestibility, leading birds to increase their feed intake in order to meet their nutritional needs (Zanetti et al, 2017). Conversely, Hetland, Svihus, & Choct (2005) described that, at appropriate levels in diets, fiber tends to prolong the retention time of digesta in the upper part of the gastrointestinal tract, stimulating the development of the gizzard and production of endogenous enzymes, thereby improving the digestibility of starch, lipids and other compounds, which was confirmed in the current study.…”

“…According to Zanetti et al (2017), the high soluble-fiber contents of the waste (60.77% ADF) may increase the viscosity of digesta in the small intestine, reducing digestibility and nutrient absorption and slowing peristalsis. Moreover, birds may increase their feed intake in an attempt to meet any occasional nutrient deficiency, which was not the case in the present study.…”

“…Fachinello et al (2016) investigated the nutritional composition of passion fruit seed meal for meat quail and found 5,569 kcal/kg gross energy, 11.34% crude protein and 18.84% ether extract. Zanetti et al (2017) evaluated the effects of including passion fruit seed waste at different levels in broiler-hen diets and observed that, in the period of one to 42 days of age, levels up to 12.5% did not compromise carcass yield.…”

Passion fruit waste in diets for quail in the laying phase

“…Togashi et al (2008), on the other hand, did not observe losses in the performance of broilers at 42 days, after including 8% passion fruit seed meal in their feeding. By contrast, Zanetti et al (2017) noted a linear decrease in the feed conversion of broilers aged 1 to 42 days with the inclusion of 0 to 12.5% passion fruit seed waste.…”

Valorization of byproducts from tropical fruits: Extraction methodologies, applications, environmental, and economic assessment: A review (Part 1: General overview of the byproducts, traditional biorefinery practices, and possible applications)

“…One kilogram of passion fruit seed oil supplements, with an apparent metabolizable energy of ≈3.945 kcal/g, was given to broiler chickens. Byproducts of passion fruit seed could be used at levels of up to 5% inclusion in broiler diets without impairing on performance, carcass yield, blood parameters, intestinal morphometry, and meat quality (Zanetti et al., ). However, when passion fruit seed was used in the diet of laying hens, there was no difference in egg production and feed conversion, but the specific gravity of eggs increased with the concentration of seeds, while total cholesterol and blood triglycerides decreased linearly, and also a decrease in the yolk lipid oxidation was evidenced (Zanetti et al., ).…”