1. A method for improving at least one animal health indicator selected from the group consisting of weight gain, food consumption, food efficiency, and medical intervention frequency lower mortality, the method comprising the step of administering an effective amount of said at least one activated functional protein selected from the group consisting of lysozyme, lactoferrin, growth factors, transfer factor, cytokine and immunoglobulin, where the level of activation of said activated functional protein above the level determined in the biological source of said at least one functional belka.2. The method of claim. 1, characterized in that said at least one functional protein derived from the group of sources consisting of milk, whey, colostrum, whey protein, fetal tissue, mammalian tissue, animal tissue, plasma, blood, whole blood and red blood cells wherein said source includes said at least one functional protein, activated prior to the first level, and said method further comprises the step of raising the level of activation of at least one functional protein prior to the second urovnya.3. The method of claim. 1, characterized in that the activation level of the at least one functional protein is increased above the level of activation of said at least one functional protein, defined in said biological source in a manner selected from the group consisting of adjusting the pH, temperature control , alcohol extraction, enzyme addition, ion exchange, addition of1. Способ улучшения по меньшей мере одного показателя здоровья животных, выбранного из группы, состоящей из прироста массы, потребления корма, эффективности питания, частот медицинского вмешательства и более низкой смертности, где способ включает этап введения эффективного количества указанного по меньшей мере одного активированного функционального белка, выбранного из группы, состоящей из лизоцимов, лактоферрина, факторов роста, факторов передачи, цитокинов и иммуноглобулинов, где уровень активации указанно