The study of facial expressions in mammals provided great advances in the identification of their emotions and then in the comprehension of their sentience. So far, this area of research has excluded birds. With a naturalist approach, we analysed facial blushing and feather displays in domestic fowl. Hens were filmed in situations contrasting in emotional valence and arousal level: situations known to indicate calm states (positive valence / low arousal), have rewarding effects (positive valence / high arousal) or induce fear-related behaviour (negative valence / high arousal). Head feather position as well as skin redness of comb, wattles, ear lobes and cheeks varied across these situations. Skin of all four areas was less red in situations with low arousal compared to situations with higher arousal. Furthermore, skin redness of the cheeks and ear lobes also varied depending on the valence of the situation: redness was higher in situations with negative valence compared to situations with positive valence. Feather position also varied with the situations. Feather fluffing was mostly observed in positively valenced situations, except when hens were eating. We conclude that hens have facial displays that reveal their emotions and that blushing is not exclusive to humans. This opens a promising way to explore the emotional lives of birds, which is a critical step when trying to improve poultry welfare.
机构:
Univ Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Yamaguchi, Sayaka
论文数: 引用数:
h-index:
机构:
Sano, Ayako
Hiruma, Midori
论文数: 0引用数: 0
h-index: 0
机构:
Juntendo Univ, Fac Med, Dept Dermatol, Tokyo, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Hiruma, Midori
Murata, Michiko
论文数: 0引用数: 0
h-index: 0
机构:
Azabu Univ, Fac Vet Med, Sagamihara, Kanagawa, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Murata, Michiko
Kaneshima, Takashi
论文数: 0引用数: 0
h-index: 0
机构:
Ryukyu Anim Clin Ctr, Ryukyu, Okinawa, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Kaneshima, Takashi
Murata, Yoshiteru
论文数: 0引用数: 0
h-index: 0
机构:
Murata Anim Hosp, Chiba, Japan
Chiba Vet Med Assoc, Comm Infect Dis, Chiba, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Murata, Yoshiteru
Takahashi, Hideo
论文数: 0引用数: 0
h-index: 0
机构:
Chiba Vet Med Assoc, Comm Infect Dis, Chiba, Japan
A Land Oyumino Anim Hosp, Chiba, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Takahashi, Hideo
Takahashi, Sana
论文数: 0引用数: 0
h-index: 0
机构:
Azabu Univ, Fac Vet Med, Sagamihara, Kanagawa, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Takahashi, Sana
Takahashi, Yoko
论文数: 0引用数: 0
h-index: 0
机构:
Chiba Univ, Med Mycol Res Ctr, Chiba, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Takahashi, Yoko
Chibana, Hiroji
论文数: 0引用数: 0
h-index: 0
机构:
Chiba Univ, Med Mycol Res Ctr, Chiba, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Chibana, Hiroji
Touyama, Hidemi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Touyama, Hidemi
Nguyen Thi Thanh Ha
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Nguyen Thi Thanh Ha
Nakazato, Yasutomo
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Nakazato, Yasutomo
Uehara, You
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Uehara, You
Hirakawa, Morihiko
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Hirakawa, Morihiko
Imura, Yoshimi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Imura, Yoshimi
Terashima, Yoshie
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Trop Bioresources Res Ctr, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Terashima, Yoshie
Kawamoto, Yasuhiro
论文数: 0引用数: 0
h-index: 0
机构:
Univ Ryukyus, Fac Agr, Nakagusu Ku, Nishihara, Okinawa 9030213, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Kawamoto, Yasuhiro
Takahashi, Keji
论文数: 0引用数: 0
h-index: 0
机构:
Chiba Prefectural Govt, Chiba, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Takahashi, Keji
Sugiyama, Kazutoshi
论文数: 0引用数: 0
h-index: 0
机构:
Sugiyama Vet Clin, Shizuoka, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Sugiyama, Kazutoshi
Hiruma, Masataro
论文数: 0引用数: 0
h-index: 0
机构:
Juntendo Univ, Fac Med, Dept Dermatol, Tokyo, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Hiruma, Masataro
Murakami, Masaru
论文数: 0引用数: 0
h-index: 0
机构:
Azabu Univ, Fac Vet Med, Sagamihara, Kanagawa, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan
Murakami, Masaru
Hosokawa, Atsushi
论文数: 0引用数: 0
h-index: 0
机构:
AM Dermatol Clin, Ryukyus, Okinawa, JapanUniv Ryukyus, Fac Med, Dept Dermatol, Nishihara, Okinawa 9030213, Japan