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AFNS 561 (Winter 2012)
Ruminant Digestion, Metabolism, and Nutrition
Description: Integration of theory and practical concepts in ruminant nutrition, digestion and metabolism through topics such as energy flow in ruminants, protein systems and net feed efficiency. Laboratories will involve formulation of rations for various physiological states of beef and dairy cattle, economical rations, feed mixes, protein systems (degradable and undegradable protein systems) and net feed efficiency formulations. Prerequisite: ANSC 260 or
*3 NUTR. Co-requisite: ANSC 311.
Instructors: G. Reza Khorasani, Ph.D., PAg. (Course coordinator) F-30 South Campus
Phone: 492-9003; e-mail: [email protected] Erasmus Okine, Ph.D., Professor
Room 4-10 AG/FOR Centre
Phone: 492-2131; e-mail: [email protected] Teaching Assistants: Ghader Manafiazar
e-mail: [email protected]
Lectures: 11:00 – 11:50 AM on Mon, Wed, and Fri (GSB 211)
Laboratories: 14:00 – 16:50 pm on Wed (GSB 866 unless otherwise announced)
Course Objectives: 1. To increase knowledge and understanding of Ruminant Nutrition, Digestive Physiology and Metabolism
2. To develop expertise in ruminant nutrition through ration formulation for specific physiological conditions for both beef and dairy cattle
3. To practice communication and investigative skills using real case studies
4. To ensure that students learn to team up Required Textbook: None
Supplemental Reading: Duke's Physiology of Domestic Animals, 12th. Edited by M.
Swenson and W. Reece, Cornell University Press, 2004.
The Ruminant Animal Digestive Physiology and Nutrition.
Edited by D.C. Church, Waveland Press, Inc. 1993.
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Nutrient Requirements of Dairy Cattle. 7 rev. ed. National Research Council, 2001.
Nutrient Requirements of Beef Cattle. 7 rev. ed. National Research Council, 2000.
Animal Nutrition’ P. McDonald, R.A Edwards and J.F.D.
Greenhalgh, 1996.
Past exam: Final exam given in 2009 can be seen at Exam Registry:
http://www.su.ualberta.ca/services_and_businesses/services/info link/exams
Course Policy: Attendance is required for all lectures and laboratories.
Course materials including lecture notes will be posted on eClass.
Makeup exams will be given only for excused absences and at the discretion of the instructor, and need to be arranged prior to the scheduled exam time.
Lab reports are due at the beginning of the labs. Late assignments will lose 20% of mark per day.
Letter grades will be assigned to the final distribution of total marks.
Allocation of Marks: Dairy (Dr. Khorasani) Oral presentation 8%
Lab 12%
Mid-term exam 1 25%
Beef (Dr. Okine) Lab 20%
Mid-term exam 2 25%
Full Review Paper 10%
Reviews:
Consist of an oral and written review.
Short Review:
A suggested list of topics is included with the lecture outline. Each student will present one review, which will consist of an oral (10 minutes) presentation, along with a written paper (maximum length of 2,000 words; exclusive of references).
Full Review:
A topic will be selected by each student and the professor teaching the course. The format of the review is similar to the Canadian Journal of Animal Science review
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papers. The written paper is due on April 4th, 2012 (Max 10 pages) and will be presented as an oral presentation (30 minutes) on April 14th, 2012 to the professor teaching the course.
Suggested paper: “Maximizing Microbial Protein Synthesis in The Rumen.”
Lecture and Laboratory Schedule
Lecture Topics Lab Topics
Jan 9 Introduction
CPM-Dairy Lab 1: Introduction Jan 11 Digestive physiology of ruminants
Jan 13 Rumen microbiology Jan 16 Feeding forage to ruminant
Lab 2: Feedstuff:
(Ag/For Centre 519/521) Jan 18 Feeding grain to ruminant
Jan 20 Utilization of byproducts Jan 23 Utilization of byproducts
Lab 3: Ration formulation Jan 25 Rumen pH regulation
Jan 27 Rumen pH regulation Jan 30 Energy metabolism
Lab 4: Ration formulation Feb 1 Energy / Protein metabolism
Feb 3 Protein metabolism
Feb 6 Oral Presentation Lab 5:
Oral Presentation
Ration formulation – Due Feb 8 Oral Presentation
Feb 10 Oral Presentation
Feb 13 Methane production and Urea recycling
Lab 6: Ration formulation – Close-Up-Dry
Feb 15 Fat metabolism and DCAB Feb 17 Review for mid-term exam Feb 20
READING WEEK Feb 22
Feb 24
Feb 27 Practical concerns for diet formulations
Mid-term exam 1 (30%) Feb 29 No class
Mar 2 Energy systems, DE for Beef Cattle
Mar 5 Energy systems, DE for Beef Cattle Lab 6 Cowbytes –
Introduction and Energy + Environment
Mar 7 Energy systems, TDN for Beef Cattle Mar 9 Energy systems, ME for Beef Cattle
Mar 12 Energy systems, ME for Beef Cattle Lab 7: Cow-calf rations Mar 14 Energy systems, ME for Beef Cattle
Mar 16 Energy systems, NE for Beef Cattle
Mar 19 Energy systems, NE for Beef Cattle Lab 8: Cow-calf rations Mar 21 Protein systems for Beef cattle
Mar 23 Protein systems – Urea use for Beef cattle
Mar 26 Minerals and vitamins Lab 9 – Replacements and Backgrounders rations Mar 28 Rumen metabolism – Dismutation
Mar 30 Rumen metabolism – Dismutation
Apr 2 Rumen metabolism – Dismutation Lab 10 - Receiving diets and step up rations Apr 4 Acidosis, Rumen Malfunction
Apr 6 Bloat, Rumen Malfunction
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Apr 9 Ionophores/Implants/Nitrates Lab 11- Finishing diets Apr 11 Ionophores/Implants/Nitrates
Apr 18 ? Mid-term exam 2 (30%)
Code of Behavior: All students are expected to familiarize themselves “Code of Student Behavior” at www.ualberta.ca/~unisecr/policy/sec30.html.
30.3.2 Inappropriate Academic Behavior
30.3.2(1) Plagiarism: No Student shall submit the words, ideas, images or data of another person as the Student’s own in any academic writing, essay, thesis, project, assignment, presentation or poster in a course or program of study.
30.3.2(2) Cheating
30.3.2(2) a No Student shall in the course of an examination or other similar activity, obtain or attempt to obtain information from another Student or other unauthorized source, give or attempt to give information to another Student, or use, attempt to use or possess for the purposes of use any unauthorized material.
30.3.2(2) b No Student shall represent or attempt to represent him or herself as another or have or attempt to have himself or herself represented by another in the taking of an examination, preparation of a paper or other similar activity.
30.3.2(2) c No Student shall represent another’s substantial editorial or compositional assistance on an assignment as the Student’s own work.
30.3.2(2) d No Student shall submit in any course or program of study, without the written approval of the course Instructor, all or a substantial portion of any academic writing, essay, thesis, research report, project, assignment, presentation or poster for which credit has previously been obtained by the Student or which has been or is being submitted by the Student in another course or program of study in the University or elsewhere.
30.3.2(2) e No Student shall submit in any course or program of study any academic writing, essay, thesis, report, project,
assignment, presentation or poster containing a statement of fact known by the Student to be false or a reference to a source the Student knows to contain fabricated claims (unless
acknowledged by the Student), or a fabricated reference to a source.
