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²Î¿¼ÎÄÏ×£¨References£©£º

[1] NYS Y£® Recent developments in layer nutrition for optimising shell quality[C]£ºProceedings of 13th European Symposium on Poultry Nutrition£® Blankenberge £¬Belgium£º[s£®n£®] £¬2001£º42-52£®

[2] GUO X £¬HUANG K £¬Tang J£®Clinicopathology of gout in growing layers induced by high calcium and high protein diets [J]£®British Poultry Science £¬2005 £¬46(5)£º641-646£®

[3] ÍõÓñ­U £¬ÕÅÑÇÀö£®²î±ðËÇÁ¸¸ÆË®Æ½¶Ôº£À¼ºÖµ°¼¦²úµ°ºóÆÚÉú²úÐÔÄܵÄÓ°Ïì[J]£®Öйú¼ÒÇÝ £¬2015 £¬37(17)£º60-61£®

[4] MICHAEL B C£®Involvement of calcium and phosphorus in bone and shell quality of early maturing commercial layers [J]£®World Poultry £¬2001(6) £º16-19£®

[5] ³Â½Ü £¬ÕÂÊÀÔª£®µ°¿ÇµÄ¸Æ»¯Àú³Ì¼°µ°¿ÇÏٵĸƴúлµ÷¿Ø[J]£®ÐóÄÁÓëÊÞÒ½ £¬2010 £¬42(11)£º93-96£®

[6] ¿×·ÐÀ£®²î±ðÔö¸ÆÄ£Ê½¶Ôµ°¼¦Éú²úÐÔÄÜ¡¢ëÖ¹ÇÖÊÁ¿ºÍµ°Æ·ÖʵÄÓ°Ïì[D] £®Ë¶Ê¿Ñ§Î»ÂÛÎÄ£®±£¶¨ £¬ºÓ±±Å©Òµ´óѧ £¬2015£®

[7] º«½ø³Ï £¬Ò¦¾ü»¢ £¬Ö£ÓÀÏ飮25-ôÇ»ùάÉúËØD3ÔÚ¶¯ÎïÓªÑøÖеÄÓ¦ÓÃ[J].ËÇÁϹ¤Òµ £¬2013 £¬(10)£º56-59£®

[8] ÏÄÓñ £¬Òó¹âÁᣮάÉúËØK2·ÀÖιÇÖÊËÉÉ¢Ö¢µÄÑо¿Ï£Íû £¬ÉúÎïÊÖÒÕÌìÏ £¬2016 £¬3£º184-185£®

[9] ÁúÀöÄÈ £¬Ð»´ºÑÞ £¬ÖìÄ껪 £¬µÈ.ôÇ»ùµ°°±ËáòüºÏÃÌ£¯Ð¿¶Ô²úµ°¼¦µ°¿ÇÆ·Öʼ°Î¢Á¿ÔªËسÁ»ýµÄÓ°Ïì.¶¯ÎïÓªÑøÑ§±¨2015 £¬27(9):2692-2698.

[10] Stefanello C £¬Santos T C £¬Murakami A E £¬et al. Productive performance £¬eggshell quality £¬ and eggshell ultrastructure of laying hens fed diets supplemented with organic trace minerals.[J]. Poult £¬2014 £¬93(1):104-113.

[11] ÀîСÀû£®¹þÊϵ¥Î»ÊÇÄ¥Á·¼¦µ°Æ·ÖʵÄÖ÷ÒªÖ¸±ê[J]£®Ä¥Á·¼ìÒßѧ¿¯ £¬2013 £¬23(2)£º48-49 £¬72£®

LI X L£®The Haugh unit is an important indicator of the egg quality inspection£®Journal of Inspection and Quarantine £¬2013 £¬23(2)£º48-49 £¬72£®£¨in Chinese£©

[12] GUO JR £¬DONG XF £¬LIU S £¬et al£®Effects of long-term Bacillus subtilis CGMCC 1£®921 supplementation on performance £¬egg quality £¬and fecal and cecal microbiota of laying hens[J]£®Poultry Science £¬2016 £¬96 (5)£º1280-1289£®

[13] ³Â½Ü £¬ÉòÒ»Èã £¬ÕÅɺ £¬µÈ£®Ëữ¼Á¶Ôµ°¼¦²úµ°ÐÔÄÜ¡¢µ°Æ·Öʺ;­¼ÃÐ§ÒæµÄÓ°Ïì[J]£®Öйú¼ÒÇÝ £¬2015 £¬37(8)£º58-60£®

CHENG J £¬SHENG Y R £¬ZHANG S £¬et al£®Effects of acidifying agents on laying performance £¬egg quality and economic benefit of laying hens[J]£®China Poultry £¬2015 £¬37(8)£º58-60£®£¨in Chinese£©

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