宾州细度分离筛

1、 2002 Cargill IncorporatedAll Rights ReservedPenn State Particle Separator宾洲奶牛日粮颗粒分离筛宾洲奶牛日粮颗粒分离筛Mike Jerred 迈克迈克-杰瑞德杰瑞德Brand Manager, Dairy 奶牛品牌经理奶牛品牌经理PowerPoint comments are taken from article “Evaluation particle size of forages and TMRs using the New Penn State Forage Particle Separator”.Jud Hei

2、nrichs and Paul Kononoff, Penn State 2002 Cargill Incorporated.All Rights Reserved.Penn State Particle Separator宾洲奶牛日粮颗粒分离筛宾洲奶牛日粮颗粒分离筛 2002 Cargill Incorporated.All Rights Reserved.Penn State Particle Separator宾洲奶牛日粮颗粒分离筛宾洲奶牛日粮颗粒分离筛nEvaluating how well a ration will meet the needs of high-producing

3、cows requires understanding of both its chemical and physical characteristics评价一个日粮是否充分满足高产奶牛的需要不仅要了评价一个日粮是否充分满足高产奶牛的需要不仅要了解日粮的化学特性而且要了解日粮的物理特性解日粮的化学特性而且要了解日粮的物理特性nFeeding more fiber and larger forage particles causes cows to chew more.饲喂较多的纤维和较长牧草增加奶牛咀嚼时间饲喂较多的纤维和较长牧草增加奶牛咀嚼时间nGrain processing谷物饲料加工谷

4、物饲料加工 2002 Cargill Incorporated.All Rights Reserved.Penn State Particle Separator宾洲奶牛日粮颗粒分离筛宾洲奶牛日粮颗粒分离筛nFeeding more fiber and larger forage particles causes cows to chew more.饲喂较多的纤维和较长牧草增加奶牛咀嚼时间饲喂较多的纤维和较长牧草增加奶牛咀嚼时间nGenerally increases salvia flow, improves rumen pH (makes less acid), better acetat

5、e-to-propionate ratio, and higher milk fat percent.增加唾液分泌量、改善瘤胃增加唾液分泌量、改善瘤胃pH（降低酸度）、较佳降低酸度）、较佳的乙酸的乙酸-丙酸比例、提高乳脂率丙酸比例、提高乳脂率 2002 Cargill Incorporated.All Rights Reserved.Penn State Particle Separator宾洲奶牛日粮颗粒分离筛宾洲奶牛日粮颗粒分离筛nGrain processing谷物饲料加工谷物饲料加工nAs particle size decreases, increased area for micr

6、obial bugs to attack which results in faster & more complete fermentation.降低谷物饲料的颗粒有效地提高瘤胃微生物作用于降低谷物饲料的颗粒有效地提高瘤胃微生物作用于饲料的面积，其结果提高饲料的消化速度和消化率饲料的面积，其结果提高饲料的消化速度和消化率 2002 Cargill Incorporated.All Rights Reserved.Penn State Particle Separator宾洲奶牛日粮颗粒分离筛宾洲奶牛日粮颗粒分离筛nHaving the proper particle size dis

7、tribution of feeds is an important part of ration formulation / evaluation.使奶牛日粮具有恰当饲料颗粒大小（尺寸）分布是日使奶牛日粮具有恰当饲料颗粒大小（尺寸）分布是日粮配方和日粮评价的重要的工作之一粮配方和日粮评价的重要的工作之一nThe improved Penn State Particle Separator provides a tool to quantitatively determine the particle size of forages & TMRs on-farm.改良的宾洲奶牛日粮颗粒

8、分离筛是一个量化分析奶牛场牧草改良的宾洲奶牛日粮颗粒分离筛是一个量化分析奶牛场牧草和全混合日粮颗粒大小（尺寸）的有效工具和全混合日粮颗粒大小（尺寸）的有效工具nIts simple to use.使用简便使用简便nRepeatable results consistency!分析结果恒定分析结果恒定 2002 Cargill Incorporated.All Rights Reserved.Using the Separator分离筛的使用分离筛的使用nStack the separator boxes on top of each other按筛的孔径上大下小顺序迭起按筛的孔径上大下小顺序迭

9、起nPlace approximately 1 l (500 g) of sample on the top screen.取大约取大约1 升（升（500克）饲料样本并置于最上层筛上克）饲料样本并置于最上层筛上nOn a flat surface, shake the sieves in one direction 5 times then rotate the box turn and repeat.将筛箱放置在表面平坦、光滑的地面上，向同一方向摇动将筛箱放置在表面平坦、光滑的地面上，向同一方向摇动筛箱筛箱5次，然后转动筛箱次，然后转动筛箱1/4圈，按上述再摇动筛箱圈，按上述再摇动筛箱nSh

10、ake for a total of 8 sets (40 total shakes)旋转筛箱旋转筛箱8次（共摇动次（共摇动40次）次） 2002 Cargill Incorporated.All Rights Reserved.Using the Separator分离筛的使用分离筛的使用nWeigh the material on each screen and the bottom pan.称量滞留在每层筛子上的饲料重量称量滞留在每层筛子上的饲料重量nCalculate the percent material on each screen.计算滞留在每层筛子上饲料的重量百分比计算滞留在

11、每层筛子上饲料的重量百分比 2002 Cargill Incorporated.All Rights Reserved.Using the Separator分离筛的使用分离筛的使用Group Name：牛群名称：牛群名称：Diet Screening日粮筛选日粮筛选TMR Profile全混合日粮组份全混合日粮组份Expected Profile期望日粮组份期望日粮组份Top screen顶筛顶筛76g13.9%6-10%Middle screen中筛中筛215g39.5%30-50%Bottom Tray底盘底盘254g46.6%40-60%Total总合总合545g100%100% 20

12、02 Cargill Incorporated.All Rights Reserved.Recommended forage and TMR particle sizes for Penn State Separator.牧草和全混合日粮颗粒分布推荐值牧草和全混合日粮颗粒分布推荐值Corn silage玉米青贮玉米青贮Haylage半干青贮牧草半干青贮牧草TMR全混合日粮全混合日粮Upper sieve*( 0.75”)顶筛顶筛*(0.75英寸英寸)24%If not sole forage如果不完全是牧草如果不完全是牧草10-15%If chopped & rolled如果被剁碎和辊

13、压如果被剁碎和辊压10-15%In sealed silo使用密封青贮塔使用密封青贮塔(窖窖)15-25%Bunker silo, wetter mixture使用水平青贮池或使用水平青贮池或, 高水分牧草高水分牧草6-10%Or more或更多或更多Middle sieve*(0.75 0.31”)中筛中筛(0.75-0.31英寸英寸)40-50%30-40%30-50%Bottom pan*( 0.31”)底盘底盘( 80 pounds)高产（高产（ 80磅或磅或36.4公斤公斤)28 32%21 27%Medium (60 80 pounds)中产中产 (6080磅或磅或27.3-36.

14、4公斤公斤)33 37%25 32%Low ( 60 pounds)低产低产 ( 60磅或磅或27.3公斤公斤)38 42%29 36% 2002 Cargill Incorporated.All Rights Reserved.Summary总结总结nPhysical characteristics of feed can affect animal productivity日粮物理特性可影响奶牛的生产性能日粮物理特性可影响奶牛的生产性能nPenn State Particle Separator can be used to measure physical characteristics especially of TMR fed herds宾洲饲料颗粒分离筛可用来测量饲料原料，特别是全混合日粮的宾洲饲料颗粒分离筛可用来测量饲料原料，特别是全混合日粮的的物理特性的物理特性nD