检索结果-南通市图书馆

Does feeding more phases reduce ammonia concentrations from broiler litter?

Animal Nutrition 2022年第4期11卷 152-159页

作者： Madri Brink Geert P.J.Janssens Evelyne Delezie Flanders Research Institute for Agriculture Fisheries and Food(ILVO)Animal Sciences UnitScheldeweg 689090 MelleBelgium Department of Veterinary and Biosciences Ghent UniversityHeidestraat 199820 MerelbekeBelgium

We compared a 3-and 5-phase feeding program in terms of ammonia concentrations measured at litter level,litter composition and quality,nitrogen(N)utilization,performance,welfare,and meat deposition in broilers.A total of 744 Ross 308 male broilers was divided into 2 treatments,each with 6 *** 3-phase diets were formulated to CP and digestible lysine contents of 205 and 11.5 g/kg(0 to 9 d),195 and 10.8 g/kg(9 to 24 d),and 183.3 and 10.15 g/kg(24 to 39 d),*** 5-phase diets had additional phases from 17 to 24 d and 32 to 39 d with CP and digestible lysine contents of 188 and 10.4 g/kg and 177 and 9.8 g/kg,*** 5 phases reduced the NH3concentrations at litter level by37.95%and 20.81%at 23(Pphase treatment than the 3-phase treatment at 24 and 39 d of age(Pphase treatment at 39 d of age(Pphase treatments had a lower incidence of foot lesions at 24 d of age(Pphase treatment between 17 and 24 d of age and the overall period(Pphase treatment regarding the utilization of N(digestibility,excretion,and retention)was less clear,however the NH3volatilized from the litter was significantly *** 5 phases may therefore potentially reduce the NH3emitted from broiler houses which has several environmental and health *** the 5-phase treatment resulted in a significant decrease in feed efficiency,growth performance and meat deposition were maintained.

关键词： Broiler Ammonia phase feeding Crude protein Performance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of dynamic segmentation of nutrient supply on growth performance and intestinal development of broilers

引用

Animal Nutrition 2016年第4期2卷 276-281页

作者： Xiangyang Huang Huiyi Cai Guohua Liu Haijie Yan Wenhuan Chang Shu Zhang The Key Laboratory of Feed Biotechnology of the Ministry of Agriculture Feed Research Institute Chinese Academy of Agricultural Sciences

This experiment was to investigate the effects of dynamic segmentation of interval nutrient supply phase feeding on the growth performance, carcass characteristics, immune organs indexes and intestinal morphology of broilers. A total of 320 one-day-old broilers were randomly assigned into 4 feeding treatments, which included 4 interval nutrient supply phases as follows. Treatment A: a nutrient supply standard was used for every 14 d. Treatment B: a nutrient supply standard was used for every 7 d. Treatment C: a nutrient supply standard was used for every 3.5 d except that one nutrient supply standard was used for d 1 to 7. Treatment D: a nutrient supply standard was used for every 3.5 d including d 1 to 7. Each treatment was represented by 8 replicates with 10 broilers per replicate. The trial lasted for 42 days. Throughout the 42 d trial period, treatment A showed significantly higher average daily gain than treatments B and C(P 0.05). The crypt depth of duodenum was significantly greater in treatments A and B than in treatment C on day 42(P 0.05). In conclusion, this study revealed that the growth and carcass performance of broilers is the best for 14 days se

关键词： Broilers phase feeding Performance Immune organ index Intestine

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：