J. Schakel's research while affiliated with Wageningen University & Research and other places
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Publications (5)
Welfare of animals can be defined as the kind of feelings the environmental conditions bring about in the animals. These feelings depend on the needs of the animals and their degree of satisfaction. Needs of animals, and so their welfare, are partly genetically determined. Therefore, welfare can be changed by breeding. The aim of this study was to...
Citations
... The different survival rate of progeny from the two sire lines of Duroc and Pietrain showed that breeds might be different and that choice of breed can be a useful tool to increase animal welfare. Since the breeds were obtained from different breeding programs, it furthermore demonstrates that breeding can be a useful tool to increase animal welfare ( Kanis et al., 2004). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/277093482024960-1443075642014_Q64/Karel-Greef.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/278428436713480-1443393920517_Q64/Henk-Belt-2.jpg)
... Therefore, pigs must maintain a constant internal body temperature, produce heat, and the remaining excess heat must be released into the environment. This process of generating and dissipating heat is called thermoregulation (Kanis et al 2004). Nienaber and Brown Brandl (2009) noted that indoor climate control in animal housing will not always be within the pig's thermal comfort zone. ...
... The ability of a sow to produce and rear a high number of viable piglets that meet weight targets for a desired age at slaughter is the ultimate goal in pig production. Irrespective of the target slaughter weight, which differs across countries and production systems, both management and breeding programs have to be tailored and continuously optimized to achieve this goal [3,4]. Reproductive traits have been genetically improved over recent decades [5][6][7]. ...
