Effects of different levels of expanded perlite on the performance and egg quality traits of laying hens

Abstract

-The influence of different levels of expanded perlite on the performance and egg quality traits was studied in laying hens. Forty Lohmann Brown females at 30 weeks of age were randomly assigned to four groups consisting of five replicates with two hens in each. Four diet groups were supplemented with 0% (control group), 1%, 2%, and 3% perlite, respectively. Feed and water were provided ad libitum. There were no significant differences in final body weight, feed intake, egg yield, and egg weight. Feed conversion ratio and egg weight decreased with addition of 2% perlite. Dietary perlite supplementation has no significant effects on shape, yolk, and albumen index. Haugh unit was affected significantly by addition of 2% perlite. Fecal pH, dry matter, and NH 3 -N did not significantly differ among treatments. Dietary perlite has no negative effect on performance and egg quality traits except 2% perlite group. Dietary expanded perlite can be added at 1% level in laying hen rations without changing the animal performance.Key Words: egg, performance, perlite, poultry Revista Brasileira de Zootecnia

Effect of activated clinoptilolite in aflatoxin B1 contaminated laying hen diets on aflatoxin B1 residues and quality of eggs

“…Among criteria assessed in terms of egg quality, the results found for HU, albumin height, egg breakage resistance, shell thickness, and yolk colour exhibit similarities to the results presented by Öztürk et al (1998), Kralik et al (2006), and Mizrak et al (2014). However, Oğuz et al (2017) found that albumen index was decreased by the addition of perlite. Vogt (1991) reported that the addition of CLP improved yolk color.…”

“…Despite the findings of Miles et al (1986), reporting that there was a decrease in egg weight by addition of zeolite in 1.5% level in diet for egg weight, it was observed in this study that the egg weight can be also significantly increased, especially by the activation of CLP. On the other hand, Oğuz et al (2017) added perlite, expanded 10-30 times more than its normal volume by heating at temperature of 700-1,000 °C, into laying hen diets in 1.2% and 3% levels and they reported that addition of perlite reduced egg weight. It was considered that zeolite source could have effect if used within this variety.…”

Dyeing and Some Fastness Properties of Novel Perlite-Containing Polyester Woven Fabrics

“…7 The expanded form of perlite (EP particles) has low density and high porosity, and offers excellent thermal and acoustic insulating properties, chemical inertness, physical resilience, fire resistance, and water retention properties. [8][9][10][11][12][13][14][15] Perlite is used in the construction industry for insulation tiles, and in concrete as aggregate. Also, it is used as a filter product in the cleaning of dams and ponds, in an aquatic environment to obtain a clear liquid, in the growing of seed, in regulating the soil in agriculture, and in many other industrial applications.…”

“…Perlite has recently been used as an aflatoxin detoxicant and adsorbent in the removal of wastewater. 6,[12][13][14]16 Perlite is chemically inert in many environments, and hence an excellent filter aid and filler in various processes and materials. Along the Aegean coast of Turkey lies about 70% of the world's known perlite reserves.…”

“…7 The expanded form of perlite (EP particles) has low density and high porosity, and offers excellent thermal and acoustic insulating properties, chemical inertness, physical resilience, fire resistance, and water retention properties. 8–15…”