Light is important for broiler rearing which can affect economically significant performance traits. The purpose of this study was to investigate the effects of daylight (DL), warm white (WWL) and blue light (BL) on broiler fattening performance, carcass characteristics, meat quality, litter characteristics and welfare. In the study, 216 male chicks were used. Chicks were weighed and housed randomly in 3 light-controlled rooms (n=72), each containing 9 separate pens (8 chicks per pen). During the experiment body weight, weight gain, feed consumption, and feed-to-gain ratio were calculated weekly. Carcass yield and percentages of internal organs were determined. Tonic immobility duration, footpad, and breast burns of broilers, pH, and moisture of litter, cooking loss, and water-holding capacity of the breast meat were analyzed. At the end of six weeks of the experiment, the body weight (P<0.001), body weight gain (P<0.001), and total feed consumption (P<0.01) were lower, and feed-to-gain ratio (P<0.01) was higher for broilers reared under the BL. At the end of the fattening period, the tonic immobility duration, footpad & breast burns of broilers, and moisture & pH levels of the litter did not change according to the lighting groups (P>0.05). The differences among the groups in terms of, carcass yield, percentages of heart, liver, gizzard & abdominal fat, and examined meat properties were found as statistically insignificant (P>0.05). As a result, BL has a negative impact on the growth performance of broilers. However, carcass and carcass characteristics, litter parameters, meat quality and welfare characteristics were similar among examined light color groups.
Experimental procedures were approved by the Ankara University Ethics Committee (2017-16-130).
This study was summarized from the PhD thesis of the first author.
Primary Language | English |
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Subjects | Animal Science, Genetics and Biostatistics |
Journal Section | Research Article |
Authors | |
Publication Date | |
Submission Date | November 22, 2023 |
Acceptance Date | May 30, 2024 |
Published in Issue | Year 2025Volume: 72 Issue: 1 |