Essays about: "broody"

Found 4 essays containing the word broody.

  1. 1. To be a chick mother : variation in maternal care and its effect on chick behavioural development

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Linnéa Christenson; [2021]
    Keywords : maternal behaviour; natural broodiness; induced broodiness; social ranking; hen chick interaction; chick behavioural development; poultry; layers; feather peck;

    Abstract : In Swedish poultry production today over 7 million chicks are incubated, housed and reared without maternal care. Studies indicate that chicks behavioural development and welfare may benefit from hen maternal care and potentially maternal care could be artificially provided in the commercial situation. READ MORE

  3. 2. The effect of brooders on the synchronization of behaviour in broilers

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Elin Yngve; [2019]
    Keywords : broilers; sleep; resting; synchronization; brooders;

    Abstract : For the first weeks of their life chickens in nature sleep and rest on the ground under the brooding hen. However, broilers in conventional production are kept in very barren environment with high stocking densities which does not encourage sleep and rest. READ MORE

  4. 3. Cold-induced vasodilation in the brood patch of Zebra finches (Taeniopygia guttata)

    University essay from Institutionen för fysik, kemi och biologi

    Author : Sofia Klubb; [2010]
    Keywords : Brood patch; broody; cold-induced vasodilation; mechanism; non-broody; Zebra finch;

    Abstract : The development of the avian embryo is dependent of heat provisioning from the parents. To increase the heat transfer to a cooled egg the Zebra finch females develop a brood patch. Mild cooling generally constricts the blood vessels but the Arterio-venous anastomoses (AVA) in the brood patch in birds dilate. READ MORE

  5. 4. The expression of thermoTRP channels in the brood patch of jungle fowl (Gallus gallus) during egg incubation

    University essay from Institutionen för fysik, kemi och biologi

    Author : Shadi Jafari; [2009]
    Keywords : Brood patch; broody; jungle fowl; skin; thermoTRP;

    Abstract :   The regulation of egg temperature requires the transfer of heat from the brood patch. Thus, the brood patch needs the presence of thermo receptors as well as an appropriate vasomotor response. During the incubation an exact detection of the egg’s temperature is essential. READ MORE