Author: Division of Education, Skills and Innovation

Worksheets SUBJECT:        Agricultural Science LEVEL:             Forms 4 & 5 TOPIC:             The Hen’s Reproductive System CSEC Agricultural Science Syllabus Section C: Animal Production Animal genetics, breeding and reproduction Specific objective(s): 4.8 Relate the structure of the parts of an egg to its function Reproductive organs of the hen (ovary and oviduct) Table 1: Functions of various sections of the hen’s oviduct Section of oviduct Approximate time egg spends in this section Functions of section of oviduct 1.  Funnel (infundibulum) 15 minutes Receives yolk from ovary. 2.  Magnum 3 hours Albumen and chalaza are secreted and layered around the yolk 3.  Isthmus 1 hour  Inner and outer shell membranes are added, along with some water and mineral salts 4.  Shell gland (uterus) 21 hours Some water is added, along with the shell material (mainly calcium carbonate). Pigments may also be added to make the shell brown 5.  Vagina/     cloaca less than 1 minute The egg passes through this section before laying. Abnormalities in Egg Formation Double Yolk Egg Soft Shelled Egg Yolkless Egg Review Questions 1.      Summarize the process of egg formation using one of the following: A Mathematical formula A written statement on egg formation An illustration of egg formation 2.      Which stage would you consider the most important in the egg formation process? 3.      How often would you get eggs from your layers and why? 4.      Use the internet to research the following abnormalities in egg formation  and summarize the information in the table below: 5.      Use the internet to research the following abnormalities in egg formation  and summarize the information in the table found on the last page of PDF below: Download/Print fillable PDF to get started: Agricultural Science Form Four & Five – Reproductive organs of the hen – prepared by Kelly Belgrove Marabella North Sec Sources: Ragoonanan, S. (2017). Agriculture for CSEC – New Edition Revision Course. La Romaine: Caribbean Educational Publishers (2003) Ltd. Ramharacksingh, R. (2011). Agricultural Science for CSEC Examinations . Oxford: Macmillian Publishers Limited. Additional Resources PENNACOOL MOE SCHOOL LMS DRIVEWISE

Worksheets SUBJECT:                    Agricultural Science LEVEL:                        Forms 4 & 5 TOPIC:                        Care and Maintenance of Simple Tools & Equipment   CSEC Agricultural Science Syllabus SECTION B: Crop Production Land Preparation and Farm Machinery Specific objective(s): 4.4  Describe the care and maintenance of simple tools and equipment SBA Skill: Section B – Crop Production No. 7. Clean and maintain simple tools WHAT IS A TOOL? A tool is any device that makes work easier. Tools are generally hand held and manually operated. A range of tools are needed for different operations that are carried out in the farm. Some of these include: Construction e.g. hammer, measuring tape Land preparation e.g. garden fork, hoe, spade Planting and Nursery activities e.g. dibber, trowel, press board Watering e.g. bucket, watering can Pruning e.g. secateurs, pruning knife Harvesting e.g. knives, garden fork Grading and packing e.g. vacuum sealer WHAT ARE EQUIPMENT? Equipment are instruments that help make work on the farm easier. Equipment cannot work by themselves and therefore require an energy source to operate. Some examples of sources of energy that allow equipment to operate are: Electricity e.g. vacuum sealer, freezer Hydraulics e.g. Knapsack sprayer Springs e.g. Scale MAINTENANCE AND STORAGE OF TOOLS AND EQUIPMENT. Tools and equipment must be well taken care of in order to ensure that they perform the tasks they were designed to do.  The following are some general guidelines for taking care of tools and equipment: Observe the tool for condition e.g. broken, needs repairs, needs sharpening, needs cleaning Wooden handles should be well set, strong and durable. Moving parts should be well oiled and greased regularly Decide on appropriate actiong e.g. a. Clean tool b. where necessary e.g. fix handles, tighten parts, change parts, etc c. Sharpen if necessary before and after use. d. Metal parts should be well oiled and greased to prevent rusting. 3. Tools should be washed and dried after each use and stored in a special room after each use. CARE OF A SIMPLE TOOL e.g. Secateurs Step 1 Clean all metal parts thoroughly using a scourer or fine wire wool to remove any rust and build-up of plant and sap residue left on the blades. Step 2 Using a file, sharpen the cutting blade on an angle from the outside edge and then the inside edge to leave the blade sharp. Step 3 Oil the moving parts, keeping them lubricated and smooth so that the parts repel water from the metal parts, thus avoiding rust. Oil the spring and revolving shaft. STUDENT SELF ASSESSMENT Tools and Equipment Worksheet Download/Print fillable PDF to start Agricultural Science Form Four – Care & Maintenance of Tools & Equipment Sources: https://www.gardenersworld.com/how-to/grow-plants/how-to-maintain-secateurs/ Additional Resources PENNACOOL MOE SCHOOL LMS DRIVEWISE