Differences in innate fear behaviour in native Japanese chickens

Terashima, Momoe; Velasco, Vanessa Viterbo; Gotō, Naoki; Tsudzuki, Masaoki; Ishikawa, Akira

doi:10.1080/00071668.2023.2207735

Cited by 5 publications

(2 citation statements)

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“…In contrast, there have been a few previous studies using day-old chicks or young chicks of the IG, OSM, and TKU breeds. In our previous study [16], the tonic immobility test and the open field test were conducted with day-old chickens from six native Japanese chicken breeds (IG, OSM, TKU, Nagoya (NAG), Tosa-Jidori, and Ukokkei) and two White Leghorn (WL) lines. The results revealed intriguing variations in behavioral temperaments among the breeds.…”

Section: Discussionmentioning

confidence: 99%

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New Behavioral Handling Test Reveals Temperament Differences in Native Japanese Chickens

Ishikawa,

Takanuma,

Hashimoto

et al. 2023

Animals

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It is well known in the poultry industry that fear and stress experienced during the handling of day-old chicks in commercial hatcheries can have long-lasting effects on their behavior later in life. These hatchery-related stresses are more intense and complex than those encountered in traditional behavioral tests. Consequently, a single behavioral test may not be sufficient to measure hatchery stresses and chicken temperament. In this study, we developed a new behavioral handling test for day-old chickens, which incorporated concepts from established behavioral tests used with both young and adult birds. The new test assessed 10 behavioral traits, including vocalization frequency and responses to human interaction. It was conducted on 96 two-day-old chicks from seven breeds of native Japanese and Western chickens. The results of the principal component analysis classified chicken temperaments into three distinct categories: bustle, aggression, and timidity. Using these categories, the seven breeds were classified into five groups, each with distinct temperaments. This study highlights the reliability and value of the new handling test in characterizing the temperaments of various chicken breeds and provides insights into the complex behaviors of chickens.

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Section: Discussionmentioning

confidence: 99%

“…Furthermore, relying on only one behavioral test to evaluate the temperament of chickens has its limitations. Previous studies, such as [15][16][17], have addressed these challenges by employing multiple behavioral tests simultaneously. However, this approach requires labor-intensive experimental designs.…”

Section: Introductionmentioning

confidence: 99%