Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3.0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/init.php on line 48 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3.0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/init.php on line 48 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 26 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/topnews.php on line 32 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/engine.php on line 122 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/show.full.php on line 101 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/show.full.php on line 229 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/show.full.php on line 229 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/show.full.php on line 233 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/show.full.php on line 233 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/rssinform.php on line 97 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Moscow' for 'MSK/3,0/no DST' instead in /var/www/zverovods/data/www/zverovods.ru/engine/modules/rssinform.php on line 97 Кальций и фосфор

Кальций и фосфор


сельское хозяйство http://agro-archive.ru/
Важно, чтобы кальций и фосфор поступали в организм в определенном соотношении: кальция должно быть столько же или несколько больше, чем фосфора. Нормальным считается соотношение от 1:1 до 1,7:1. Так, в рационы молодняка рекомендуется включать 0,50,6 % кальция и 0,4—0,5 % фосфора (по отношению к сухому веществу корма); в рационы лактирующих самок соответственно 0,8 и 0,6 %.

При значительном изменении рекомендуемых соотношений минеральный обмен нарушается даже в том случае, если количество одного из элементов соответствует норме, а другой дается в избытке. При этом элемент, которого меньше, может извлекаться организмом из костной ткани, в результате чего развиваются те же заболевания, что и при недостатке кальция и фосфора.

Избыток их иногда отрицательно сказывается на качестве опушения и росте молодняка, но это может быть связано и с избытком золы в рационе, в результате чего ухудшается переваримость кормов, а следовательно, и усвоение питательных веществ рациона. Так, при скармливании норкам отходов от переработки креветок и крабов, содержащих около 14 % кальция от сухого вещества, при замене этим кормом 10—20 % протеина рациона наблюдается меньший прирост живой массы и большее потребление корма. Рационы, в которых содержится 67 % золы (20 % которой составляет кальций) от сухого вещества корма, вполне обеспечивают потребность зверей в кальции и фосфоре.

На 100 ккал обменной энергии молодняку норок следует давать 0,100,20 г кальция и 0,100,12 г фосфора, лактирующим самкам соответственно 0,24 и 0,17 г, молодняку лисиц и песцов 0,150,20 г кальция, столько же или в 1,5 раза меньше фосфора.

Потребность зверей в кальции и фосфоре может быть полностью удовлетворена, если на каждые 100 ккал обменной энергии рациона в нем содержится 57 г свежедробленных костей или 1,5 г костной муки.


  • Витамин D (кальциферол)
  • Потребность в углеводах
  • Бактериальная обсемененность корма
  • Потребность взрослых нутрий в белке
  • Определение питательной ценности рационов