Divergent selection on feather pecking behaviour in laying hens (Gallus gallus domesticus) [0.03%]
对蛋鸡（家养红冠雄鸡）啄羽行为的分歧选择
J B. Kjaer,P Sørensen,G Su
J B. Kjaer
A selection experiment was initiated in 1996 in which selection for (HP line) and against (LP line) feather pecking was performed. The foundation stock was a White Leghorn layer strain established in 1970 and maintained since then as a rand...
Can one unrestricted meal buffer the effects of previous pre-meal intervals on the feeding behaviour of sheep? [0.03%]
一次不限制的进食能否抵消之前预餐间隔对羊进食行为的影响？
H W. Erhard,G C. Davidson,D A. Elston
H W. Erhard
Varying the time since the last meal is one means of manipulating feeding motivation. In order to use this method effectively it is necessary to know whether and the extent to which effects of one pre-meal interval are carried over to affec...
The effect of parity and environmental restriction on behavioural and physiological responses of pre-parturient pigs [0.03%]
母猪产仔次数和圈舍环境对围产期行为及生理指标的影响
S Jarvis,B J. Van der Vegt,A B. Lawrence et al.
S Jarvis et al.
There is increasing evidence that restriction of pre-parturient behaviour in pigs is stress-inducing, characterised by an elevation in hypothalamic-pituitary-adrenal (HPA) activity in gilts. To determine whether pigs adapt to behavioural re...
Cattle vocalizations are associated with handling and equipment problems at beef slaughter plants [0.03%]
牛肉屠宰厂的牲畜叫声与处理和设备问题有关
T Grandin
T Grandin
Vocalization of cattle in commercial slaughter plants is associated with observable aversive events such as prodding with electric prods, slipping in the stunning box, missed stuns, sharp edges on equipment or excessive pressure form a rest...
A note on the effects of calf stimuli on the response of Zebu cows to Synchro-mate-B [0.03%]
关于小牛刺激对西苏格 cattle 同期发情-synchro-mate-b 反应效果的影响注记
Y Quesada,S Estrada,M Cubero et al.
Y Quesada et al.
The effect of Synchro-mate-B (SMB) was measured on the estrous response and the establishment of cyclicity using different calf stimuli. Multiparous Zebu cows, were divided in three groups. In the first, 32 animals were treated with SMB lea...
Some effects of repeated handling and the use of a mask on stress responses in zebu cattle during restraint [0.03%]
反复保定及佩戴口罩对瘤牛在应激反应中的某些影响
O Andrade,A Orihuela,J Solano et al.
O Andrade et al.
The objective of this investigation was to evaluate the effect of repeated handling and the use of a mask on the order of entry, temperament, cortisol concentration and heart and respiratory rates of Brahman cattle during restraint in a squ...
Gender effects on aggression, dominance rank, and affiliative behaviors in a flock of captive adult cockatiels (Nymphicus hollandicus) [0.03%]
性别对笼养成年鹦鹉攻击性、支配等级和亲社会行为的影响
L M. Seibert,S L. Crowell-Davis
L M. Seibert
Agonistic and affiliative behaviors and spatial positioning were studied in a small psittacine species, Nymphicus hollandicus. Subjects studied were flock-housed breeders including five hens and seven cocks. Fifteen-minute focal animal samp...
T Cornetto,I Estevez I
T Cornetto
In the wild, cover is used by animals to seek shelter from the elements, protection from predators and aggressive conspecifics and as a way to reduce inter-animal communication. Rearing environments for captive raised fowl often contain ope...
R Pettit-Riley,I Estevez I
R Pettit-Riley
Exercise through perching has been suggested as a way to reduce the impact of leg problems in broiler chickens. It is possible that higher stocking densities may motivate birds to perch more, and perhaps reduce some of the detrimental effec...
P D. McGreevy,L A. Hawson,T C. Habermann et al.
P D. McGreevy et al.
Recorded in several species including humans, geophagia or soil eating has been observed in both wild and domesticated horses and has generally been regarded as an indication of nutritional deficiency or "boredom". Studies of soils consumed...