神圣将军
发表于 2025-3-23 10:39:14
https://doi.org/10.1007/978-3-0348-5409-2Gehen; Hühner; Legehenne; Legehennen; Verhalten; Zucht; Zuchtmethode
Outwit
发表于 2025-3-23 15:19:22
978-3-7643-1240-4Springer Basel AG 1981
Alienated
发表于 2025-3-23 19:16:03
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为现场
发表于 2025-3-24 01:07:19
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指派
发表于 2025-3-24 04:57:17
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guardianship
发表于 2025-3-24 08:28:36
https://doi.org/10.1007/978-981-97-0896-3s. In some cases feral fowls have been studied. On the basis of these and other investigations this paper goes through the part of the normal behaviour which may throw some light on problems related to intensive egg production with special reference to the well-being of the hen in traditional battery cages.
伪书
发表于 2025-3-24 14:45:03
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形上升才刺激
发表于 2025-3-24 17:44:36
Girish Sahni,Abhay H. Pande,Anil K. Angrishi and Craig 1975, Banks and Allee 1957, Polley et al. 1974). The behaviours that have been studied include comfort behaviour, agonistic behaviour and mating behaviour. The flock sizes have mainly been small; up to about 30 hens.
glisten
发表于 2025-3-24 21:54:00
Aspects of the Normal Behaviour of the Fowl, fowl, the Red Junglefowl (Gallus gallus spadiceus) both in nature and in captivity, and the domestic fowl has been studied under free-range conditions. In some cases feral fowls have been studied. On the basis of these and other investigations this paper goes through the part of the normal behaviou
航海太平洋
发表于 2025-3-25 00:23:42
,Das Verhalten von Legehennen in Unterschiedlichen Haltungssystemen Unter Berücksichtigung der Aufzungen den gesetzgeberischen Massnahmen für ein zeitgemässes Tierschutzgesetz in der Bundesrepublik Deutschland und der Schweiz voraus. Die Forderung nach Erarbeitung verhaltenswissenschaftlicher Untersuchungsmethoden und objektivierbarer Kriterien für die Beurteilung des Verhaltens von Hühnern in unt