中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 日粮中高剂量植酸酶对肉鸡生长性能、骨骼矿化和钙磷沉积的影响 饲料工业 2017,38 (16) 22-29
Position: Home > Articles > Effects of high doses of phytase on growth performance, bone mineralization, and calcium and phosphorus retention in broiler chickens diet Feed Industry 2017,38 (16) 22-29

日粮中高剂量植酸酶对肉鸡生长性能、骨骼矿化和钙磷沉积的影响

作  者：
陈冠华;张金龙;张宁;瞿红侠;韩进诚;王志祥;陈建成;陈村年
单  位：
商丘师范学院生命科学学院;河南农业大学牧医工程学院
关键词：
非植酸磷;高剂量植酸酶;生长性能;骨骼矿化;肉鸡
摘  要：
试验旨在研究含25-羟基维生素D3(25-OH-D3)低磷日粮中添加高剂量植酸酶对1~42日龄肉鸡生长性能、骨骼矿化和钙磷沉积率的影响。将250只1日龄肉鸡公雏随机分成5个处理,每个处理5个重复,每重复10只。1个对照组:非植酸磷(NPP)含量为0.45%/0.35%;4个试验组按照2×2因子设计试验:2个NPP含量(1~21日龄,NPP含量分别为0.35%和0.25%;22~42日龄,NPP含量分别为0.25%和0.15%),植酸酶2个添加水平为1 000 IU/kg和10 000 IU/kg。结果显示:(1)与日粮中NPP含量0.35%/0.25%相比,NPP含量为0.25%/0.15%时,42日龄肉鸡体增重、血浆无机磷浓度、股骨和胫骨灰分重量、钙含量以及跖骨直径和磷含量显著降低(P<0.05),31~34日龄肉鸡钙沉积率和11~14日龄肉鸡磷沉积率显著提高(P<0.05)。(2)与日粮中植酸酶添加1 000 IU/kg相比,植酸酶添加10 000 IU/kg时,42日龄肉鸡体增重、采食量、血浆无机磷浓度、股骨重量和灰分重量、胫骨和跖骨长度显著提高(P<0.05),11~14日龄肉鸡钙磷沉积率显著提高(P<0.05)。(3)与日粮中NPP含量0.45%/0.35%相比,日粮中0.35%/0.25%NPP+1 000 IU/kg植酸酶或0.25%/0.15%NPP+10 000 IU/kg植酸酶时,肉鸡生长性能和骨骼矿化(除跖骨磷含量外)未受到显著影响(P>0.05)。综上所述,1~42日龄肉鸡日粮中NPP含量为0.35%/0.25%时,植酸酶适宜添加量为1 000 IU/kg;NPP含量为0.25%/0.15%时,植酸酶适宜添加量为10 000 IU/kg。
译  名：
Effects of high doses of phytase on growth performance, bone mineralization, and calcium and phosphorus retention in broiler chickens diet
作  者：
Chen Guanhua;Zhang Jinlong;Zhang Ning;Qu Hongxia;Han Jincheng;Wang Zhixiang;Chen Jiancheng;Chen Cunnian;
关键词：
non-phytate phosphorus;;high doses of phytase;;growth performance;;bone;;broilers
摘  要：
This experiment aimed to evaluate the effects of high doses of phytase on growth perfor-mance, bone mineralization, and Ca and P retention in 1~42-day-old broiler chickens fed diets with25-hydroxycholecalciferol(25-OH-D3). A 2 × 2 factorial experiment was designed to test two levels ofnon-phytate phosphorus(NPP, 0.35%/0.25% and 0.25%/0.15% in broilers from 1 to 21 and 22 to 42 days of age, respectively) combined with two levels of phytase(1 000 and 10 000 IU/kg). A control di-et contained adequate NPP(0.45%/0.35% at 1to 21 and 22 to 42 days of age). On the day ofhatch, 250 female Ross 308 broilers were ran-domly assigned to five treatments with five stain-less steel cages of ten birds each. Resultsshowed that a decrease in dietary NPP levelfrom 0.35%/0.25% to 0.25%/0.15% decreasedthe body weight gain(BWG), plasma inorganic phosphorus(Pi) concentration, ash weight, and Ca and P percentage contents in the tibia and femur,as well as the diameter and P percentage in the metatarsus of 42-day-old broilers. Decreasing dietaryNPP levels increased Ca retention in broilers from 31 to 34 days of age and P retention in birds from11 to 14 days of age. Broilers fed 10 000 IU/kg phytase had greater BWG, feed intake, plasma Pi con-centration, weight and ash weight of femur, and length of tibia and metatarsus than those fed 1 000IU/kg phytase at 42 days of age. The Ca and P retention in birds fed 10 000 IU/kg phytase were high-er than those of birds fed 1 000 U/kg phytase at 11 to 14 days of age. No significant differences ingrowth performance and bone mineralization(except of metatarsus P) were observed among birds fed0.35%/0.25% NPP+1 000 IU/kg phytase, 0.25%/0.15% NPP+10 000 IU/kg phytase, and the controldiet. These data indicate that addition of 1 000 IU/kg phytase is sufficient for growth performance at0.35%/0.25% NPP; by contrast, 10 000 IU/kg phytase is needed at 0.25%/0.15% NPP in broilerchickens from 1 to 42 days of age.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46