Yes, the organizer will provide samples of hays and concentrates (grains) and you get to choose the sample you wish to speak about. My advice is to pick something that you are familiar with (out of all the HB testings I have done, the only time someone DNMS in this section was when the candidate said “I don’t know what this is!” and picked it up and tried to talk about what she thought it might be- don’t do that!).
We are not looking for you to be able to identify what brand of feed may be represented, but rather, is the sample most likely a Senior feed (its an extruded pellet that looks easy to chew) or a regular pelleted grain vs a textured feed (aka sweet feed), or is the sample corn, oats, barley? If corn, is it cracked corn or whole? If oats, are they whole, rolled, or crimped? Same for barley. If the sample is alfalfa, is it an alfalfa pellet or cube? If beet pulp, is it pelleted BP or beet pulp sheds? If rice bran, is it powder or pellets? Basically, do you know your way around a feed room and have a rough understanding of what that feed provides. The HB cards list the specific prompts that you will have to answer for your samples.
Are you taking the test in your own region? Samples can vary slightly geographically- hays especially. Be sure you can identify common hays in the area the testing will be held. For instance if you were testing in South Carolina, our common hays are coastal bermuda and fescue but it would probably be uncommon to encounter those in say, New York.
In the HB-A manual read the Nutrition chapter. Be sure you have a solid understanding of the classes of nutrients first which is where the chapter begins and will help you when it starts going into hay/grass types and then when it evaluates cereal grains (corn, oats, barley) and other foodstuffs. I just glanced at it and it does a good job spelling out what each foodstuff is high or low in (for instance cereal grains being high in starch, a moderate source of protein, and generally low in fat, etc) so the info is actually there when you start reading through it. There is also a chart on page 463 that has a rather detailed breakdown and analysis of various types of concentrates.
As a general rule, anytime you see alfalfa or soy in a horse feed/ration, that is providing the protein. Any oil or oilseed meal is nearly pure fat. Cereal grains provide carbohydrates (especially in the form of starches).
Read that chapter and see if it answers your questions.
The organizer or the PIP of your test should have sent you the list of 10-12 poisonous plants by now and it is now standardized across the US.
Here is a powerpoint that might actually be used at your test:
https://files.ponyclub.org/resources/137/TOXIC_PLANT_ILLUSTRATED_GUIDE
And here is the answer key:
https://files.ponyclub.org/resources/137/TOXIC_PLANT_ILLUSTRATED_GUIDE_ANSWER_KEY
Fun fact- as an examiner, I always have to study the poisonous plants before I test. I don’t necessarily walk around will all that info rattling around in my brain.
I wish I had a good way of telling you how to prep for that section but unfortunately it is sheer memorization. Maybe make up little stories about them: A horse named Fern ate bracken fern and then lost her appetite, etc etc.
Be sure to look at the rubrics for each section so you know what we are looking for- we have them for most sections, but here is the one for Nutrition:
https://files.ponyclub.org/resources/143/NUTRITION
Here is the link to the Candidate Feedback Program for you to submit anything prior to your test:
https://docs.google.com/forms/d/e/1FAIpQLSf1LxljKmY6N09r4pIt4gQCkludOWtaqTt0ct6gQlKY3WJqfQ/viewform