Chicken litter generally consists of a mixture of bedding, manure, feathers and spilled food. Flock of birds litter (flock) is a litter consisting of hardwood shavings, feed, feathers and manure; and broiler litter (broiler) is a cake of chicken litter. A kinetic investigation of the pyrolysis of chicken litter (flock and broiler) was carried out using thermogravimetric analysis (TGA) at heating rates of 5 degrees C/min, 10 degrees C/min and 20 degrees C/min. Most of the materials decomposed between 270 degrees C and 590 degrees C at each heating rate. The region of decomposition of flock and broiler was slightly lower than that of the wood chips. Wood chips (bedding material) decomposed in two stages, while flock and broiler decomposed in three stages. Apparent activation energies increased from 99 to 484 kJ/mol for the three samples when the pyrolytic conversion increased from 5% to 95%.
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http://dx.doi.org/10.1016/j.wasman.2006.01.012 | DOI Listing |
Vet Sci
December 2024
Department of Animal Science and Technology, Sanghuh College of Life Sciences, Konkuk University, Gwangjin-gu, Seoul 05029, Republic of Korea.
This study explored the impact of perches on the productivity and welfare of broilers raised on two animal welfare-certified farms (designated as Farm A and B) in South Korea. Broiler houses in each farm were provided with or without wooden square-shaped perches (2 × 2 cm) at a rate of 2 m per 1000 birds. The study aimed to assess whether perches could influence productivity measures, such as weight and uniformity, and animal welfare indicators, including corticosterone levels and physical health markers.
View Article and Find Full Text PDFPoult Sci
December 2024
Animal Nutritional Health Division, Jones-Hamilton Co., Walbridge, OH.
Broilers commonly experience stressors such as coccidiosis, a parasitic infection that results in intestinal damage, malabsorption, and performance losses. The poultry industry is exploring alternatives to anticoccidials for controlling coccidiosis, especially through the enhancement of gut health. Sodium bisulfate (NaHSO; SBS), an acid salt, has been used for many years as a litter acidifier to reduce aerial ammonia in poultry housing.
View Article and Find Full Text PDFCurr Microbiol
December 2024
Department of Veterinary and Animal Husbandry Extension Education, GADVASU, Ludhiana, Punjab, 141001, India.
A comparative cross-sectional study was conducted on farmed eggs (n: 480) and environmental samples (n: 72; feed, water, and poultry droppings) from twenty-four deep litter and caged poultry layer farms across Punjab, India. The study noted a significantly higher occurrence of Staphylococcus aureus (31.67%; 95% CI 26.
View Article and Find Full Text PDFAnimals (Basel)
November 2024
Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium.
Platforms have been shown to be a suitable environmental enrichment for broiler chickens, accommodating their motivation to roost and rest at an elevated position. In order to increase the animal welfare benefits, we designed prototype elevated platforms with additional functionalities: a local cooling system, a sheltered area underneath the platform and collection trays underneath the platform that prevent manure from falling on the litter. This study assessed the effects of these multifunctional platforms during thermoneutral and heat stress conditions on two key determinants of their commercial uptake potential, namely production performance, carcass and meat quality.
View Article and Find Full Text PDFPoult Sci
November 2024
Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences-SGGW, Poland. Electronic address:
The study evaluated the impact of relaxation music on the production performance, welfare, and blood parameters of broiler chickens. Literature indicates that specific music genres, as environmental enrichment, can improve animal welfare and production outcomes. The research involved 1,200 Ross 308 chickens divided into control (C) and experimental (M) groups.
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