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In the first chapter, the objective was to determine the metabolizable and net energy requirements for maintenance and production of entire males and immunocastrated males from 70 to 130 kg of body weight, using the factorial method. Sixty entire male pigs were randomly assigned to a performance trial with four treatments (ad libitum, 75%, 50%, and 25%
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Pork production with immunocastration: welfare and environment
2018Societal pressure to end surgical castration of piglets without anaesthesia and pain relief is increasing. Twoalternatives to surgical castration currently exist: raising entire males (EM) or immunocastrated males (IC), bothwith advantages and disadvantages. Considering animal integrity, EM may be the preferred choice.
Stefanski, V. +3 more
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Protein requirements in finishing immunocastrated male pigs
2019Immunocastration is a method for raising male pigs without surgical castration and with reduced boar taint. It consists in two vaccinations against GnRH. After the second vaccination (V2) performed a few weeks before slaughter, pigs increase their feed intake whereas protein deposition remains constant.
Labussière, Etienne +2 more
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Effect of immunocastration and caponization on fatty acid composition of male chicken meat
Poultry Science, 2019M A G Quaresma +2 more
exaly