Forage lab

docx

School

University Of Connecticut *

*We aren’t endorsed by this school

Course

1111

Subject

Mechanical Engineering

Date

Apr 3, 2024

Type

docx

Pages

3

Uploaded by tierrabrown207

Report
ANSC 1111/SAAS 113 Name: Forage lab – Due Sunday, March 10 th Station one: Hay Sampling/Analysis Describe this bale of hay. o Are there grass or legume plants or both? o Are there more stems or leaves? o First cutting or second cutting? How do you know? o At which stage do you believe this bale was harvested? o Describe the color of the hay bale. What does the color of hay tell you about the quality? o How does the hay smell? What can the smell of hay tell you about the quality? o Are there any weeds present? o According to the data presented in Table 1, when should forages be harvested? Why? Table 1: Forage Quality related to Dry Matter Intake and Digestibility CP NDF NE L iNDF* Grass- leafy 18 55 57 23 Grass- boot 17 58 54 24 Grass- heading 9 64 48 36 Source: American Forage and Grassland Council Hay Marketing Task Force
*iNDF = indigestible neutral detergent fiber Hay sampling o Using the hay probe, take a sample of hay. How many hay bales should you sample to obtain a representative sample of 500 bales of recently purchased hay? o According to the Dairy One Forage Laboratory forage sample form, how much would it cost to have a Basic (09) Wet chemistry analysis of this hay? Station two: Silage Sampling/Analysis Bunker face. Why is it important to keep the face of silage in a bunker silo perpendicular to the ground? Using Table 3, assess the color and odor of the corn silage sample. What are the goals? Why? Measure the DM and pH of the samples and complete the table below: Corn Silage Grass haylage Dry matter (DM) pH Compare the DM and pH data to the tables below. Are they good quality? Why or why not? Corn Silage Grass Silage DM% 28-33% 28-33% pH 3.8-4.2 4.0-4.8
Station three: Penn State Particle size separator Measure a 3-pint container of corn silage or haylage or Partially Mixed Ration (PMR) into the top sieve of Penn State Particle Size Separator and shake the stacked boxes 40 times per sample (5 x each direction and turn). Weigh each sieve’s contents, calculate percent per tray and record your answers in the following table: Corn Silage Grass haylage PMR Top weight (course) Middle weight (medium) Bottom weight (fine) Total Coarse particle % (Top) Medium particle % (Middle) Fine particle % (Bottom) Why is the particle size separator a valuable tool used commonly by dairy nutritionists? Do the above percentages fall within the recommended values given by Penn State’s research team? If not, why not? https://extension.psu.edu/troubleshooting-silage-problems
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help