Genetic Excellence®
Intestine肠道
Disruption of good bacteria can occur with:
以下原因会破坏正常的肠道菌落群
1. Abrupt feed changes
生硬的换料
2. Interruptions in feed and water supply
Coccidia treatment 球虫病的治疗
Vaccination 免疫
Immunity at ~16 weeks
16周左右进行免疫
Not passed from parent to offspring
不会垂直传播
Coccidiostats 抗球虫药
Monesin (Coban) 能霉素 Narasin (Maxiban) 甲基盐霉素 Amprolium 安普罗铵
饲料和饮水中断
3. Contaminated feed and water
饲料和饮水污染
4. Some antibiotic treatments
一些抗生素处理
5. Coccidiosis / Enteritis / Focal Duodenal Necrosis
球虫病/肠炎/十二指肠局灶性坏死
6. Mycotoxins
Few if any water delivery options
不能添加到饮水使用
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Issues to consider 需要考虑的问题
Heat treatment 热处理 Can’t digest above 100% 消化率不会超过100% Match enzyme to your needs 根据需要选择适用的酶
wheat based diets 向小麦基础日粮中添加木聚糖酶后对产蛋鸡生产性能的影响
a
b
饲 料 转 化 率 （ 饲 料 蛋 ）
/
© Hy-Line International
Mirzaie et al., 2012
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Enzymes 酶
Pros 优点
Improves less than optimal diets
霉菌毒素
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Intestinal function over time
肠道功能随时间的变化
Arteries 动脉
Decreased absorption over time
随时间增加消化吸收减 弱
Increasing nutrient density?
增加营养浓度？
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Phytate and Phytase 肌醇六磷酸和植酸酶
PHYTASE P
Starch
PPHYTASE P
P PHYTASE Ca2+
Protein
P
P
P = Phosphorus
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Effects of xylanase supplementation on performance of hens fed
Enzymes
酶
Prebiotics
益生元
Probiotics
益生菌
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Feed additives 饲料添加剂
Enzymes 酶
Phytase
植酸酶
β-glucanase, xylanase, cellulase
β葡聚糖酶，木聚糖酶，纤维素酶
Proteases
蛋白酶
M保a持inta肠ini道ng健Int康estinal Health
Robert Van Wyhe 罗伯特 范 威赫
© Hy-Line International
Genetic Excellence®
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• Intestine is the main organ in the body
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Feed additives 饲料添加剂
All feed additives have similar goals
所有饲料添加剂都有相似的目标
Increase nutritive value of feedstuffs
增加饲料营养价值
Increase commensal bacterial population
Digesta viscosity
消化物粘性
Course particle preference
颗粒大小偏好
© Hy-Line International
High Non-Starch Polysaccharide diets
高非淀粉多糖饲料
Sticky droppings
粘性粪便
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Be specific 具有特效的
© Hy-Line International
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Prebiotics 益生元
Indigestible 难以消化 Can effect microbiota 可以影响微生物群
Food for beneficial bacteria 益生菌群的食物
Binds to bacteria 与菌落群捆绑
© Hy-Line International
Genetic Excellence®
© Hy-Line International
Genetic Excellence®
Yeast supplementation and shell weight 补充酵母和蛋壳重量
增加共生的细菌群落
Decrease pathogenic bacterial population
减少致病的细菌群落
Decrease affect of pathogenic bacteria
降低致病细菌的影响
© Hy-Line International
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Feed additives 饲料添加剂
Increasing absorption ?
增加消化吸收？
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Feed quality and quantity
饲料质量和数量
Limiting amino acids
限制性氨基酸
Digestibility of nutrients
营养物质的可消化性
Particle size 颗粒大小
Modified from © Saxonet 1996 - 2005
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Coccidiosis 球虫病
Modified from © Saxonet 1996 - 2005
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© Hy-Line International
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改善质量不理想的饲料
Reduces environmental impact
降低环境的影响
Decreased cost
减少成本
50 kcal/kg Apparent Metabolizable Energy 50千卡/千克表观代谢能 1% protein 1% 蛋白质 0.1% available Phosphorus 0.1%可利用磷
© Hy-Line International
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Clostridial diseases 梭菌疾病
In the USA, bacitracin (BMD) at 25g per ton of feed is the most common and successful treatment
Coccidiosis 球虫病
Modified from © Saxonet 1996 - 2005
Genetic Excellence®
Coccidiosis 球虫病
Modified from © Saxonet 1996 - 2005
Genetic Excellence®
Coccidiosis 球虫病
Bacteria 细菌
© Hy-Line International
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Signs of good health 身体健康的标志
Good health 身体健康
Poor health 健康状况不良
Increased production 生产性能提升
Lack of production 生产性能不好
Good feather cover 羽毛覆盖良好
General signs of disease 表现出疾病的特征
Active and alert 机警并且有活力
Ruffled feathers 杂乱褶皱的羽毛
Liquid feces 拉稀
© Hy-Line International
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Water quality 饮水质量
Water temperature 水温
Cool water can improve feed intake and production in hot climates
气候炎热时提供冷水可以增加采食量和生产性能
pH pH值 Minerals 矿物元素
Trace 踪迹
© Hy-Line International
Genetic Excellence®
Clostridial diseases 梭菌疾病