Department of Animal Sciences

Oregon State University

 

ANS 321, Avian Embryo, CRN 36591(Lect); CRN 36592(Lab)

Spring Term 2008

This course is offered every-other-year, scheduled for Spring 2010

 

Class Meetings:

M-W-F (Lecture)

0800-0850, Wiegand Hall 132

 

W (Laboratory)

1300-1550, Dryden Hall 100A

Instructors:

Thomas F. Savage and James Hermes

Withycombe Hall 114 Withycombe Hall 206

Phone: 737-5066 737-2254

Email: Thomas.Savage@oregonstate.edu James.Hermes@oregonstate.edu

 

 

Office Hours: By appointment or "whenever the office light is on"Course Prerequisites: ANS 121 or consent of the instructor(s)

Text (Optional) : Patten's Foundations of Embryology by. B.M. Carlson

Landauer's monograph: Hatchability of Chicken Eggs as Influenced by Environment and Heredity, Univ. of Conn

Supplemental References

Study aids: Handouts, videotapes, charts will be used as supplementary materialsCourse Description: The process of transforming the albumen and yolk of an avian egg within a regulated environment can result in a living biological entity that has the ability to grow and subsequently reproduce if that is the design. With an awareness of the biological factors and environmental influences that influence avian development and growth, enhanced efficiency of poultry production can be achieved. The following course will attempt to address the requirements of artificial incubation necessary for avian embryo development through lectures, discussions, independent readings, and laboratory studies (structured and independent). The course will comprise three 50-minute lectures and one 2 hour and 50 minute laboratory per week. Field trips will be scheduled to view differing processes at local hatcheries as permitted. The times and dates for these trips will be at the convenience of the host hatcheries.

 


Course Objectives:

1. To develop an awareness of the avian efforts that are utilized in the process of artificial incubation.

2. To provide an overview of the processes and the ability to recognize salient stages in avian embryonic development.

3. To familiarize the student with the principles, practices and types of problem associated with the management and artificial incubation / hatching eggs of avian species.

4. To provide an opportunity to become familiar with the process of hatching egg breakouts and embryo diagnosis.

In addition to the primary objective of learning the principles of avian incubation, this course has three additional objectives:

a. Practice and improve your writing skills as applicable to hatchery management situations.

b. Enhance your ability to think and reason for yourself, solutions to problems encountered in artificial incubation.

c. Become aware of the relevant scientific publications related to the process of incubation.


Lecture Schedule

Date*
Lecture
Topic
Readings (*in Read Rm)
March 31
1
Introduction
Carlson Ch.1, Pages 1-40
April 2
2
Avian Experimenters and the Art of Artificial Incubation
*Deeming, Ch. 13, Pages 192-206
4; 7
3, 4
Egg Formation*, and Fertilization**
* Burley and Vadehra, pages 17-23

** Carlson, pages 121-141

9-11-14-

16-18

5-6-7-8-9
Early Embryogenesis in the oviduct*

The First 72 Hours**

* Carlson, pages 151-169

** Carlson, pages 204-217

*** Carlson, pages 257-267

21
10
Examination #1

23
11
Hatching Egg Characteristics

25
12
The Physical Environment of the Egg- Prior to Incubation

28,30
13-14
The Physical Environment of the Egg- During Incubation
see articles available in With 131
30 - May 2
14-15
The Chemical Environment During Incubation
see article distributed
5
16
Nutritional Factors Influencing Hatchability
see articles distributed
7
17
Reproductive Activity of the Breeders

9-12
18-19
Genetic Factors That Influence Hatchability or 'Good chicks gone bad'
see articles available in With 131
14
20
Malpositions

16
21
Examination #2

19
22
Disease, Maternal Infections, and Hatchability

21
23
Incubation Equipment
see handout provided
23
24
Hatchery Sanitation

26
25
Holiday

28
26
Hatchery Management

30
27
Hatchery Design, Is this necessary ?

June 2
28
Hatching Egg Production and Chick Placements

4-6
29,30
Experimental Approaches to Improving Hatchability

9

Submission of Final Examination, 4.00 PM

* Material to be read prior to the lecture


Field Trips: If arrangements can be secured, the scheduled times for these trips will not coincide with the scheduled class lecture periods due to thenature of the operations. A typed report will be required by the following week for each trip. Grading will be based on: accuracy of observations, and organization, grammar and spelling in the reports.


Examinations: There will be three exams, the first two exams will be comprehensive and address the topics since the last exam. The third will consist of an out-of-class examination. The dates of the examinations are listed in the course syllabus. Missed exams can only be made up, if you reschedule in advance or in case of illness or an emergency (documented).

Grade: The final course grade will be derived from the three examination scores, the journal reports, and the laboratory component of the course - each exam contributes 20%; the journal reports, 10%; and the lab activities 30%.

Letter Grade
Your Numerical Score
Letter Grade
Your Numerical Score
A
93-100
C+
77-79
A-
90-92
C
73-76
B+
87-89
C-
70-72
B
83-86
D
65-69
B-
80-82
F
< 65

Journal Reports

A journal activity (worth a total of 10 points toward the final grade) will also be a component of the course. Four research reports will be due on the dates noted in the Guidelines for Research Reports. Each report represents subject matter being covered in the course at that time. These reports are designed to increase your awareness of the literature associated with the avian embryo and its management. An optional fifth report worth 2 additional points can be submitted on/before June 9. The sources of the reports must be from four different sources - 2 peer reviewed journals and two industry publications. The fifth (optional report) is from a source of your choice.

The first (cover) page of each report is to contain the article's abstract (if present and can be a photocopy), the paper's properly cited reference, and the topic which it addresses. This is to be followed by a maximum of 2 double-spaced typed pages explaining the purpose, findings and relevance (e.g.. application) of the research project. The reports are expected to be organized, clearly written, and free from errors in grammar and spelling.

Each report will be graded, receiving a point score of 5, 3, or 1 according to the following criteria:

5: Correct and complete cover page format;explanation demonstrates understanding of both the paper and the incubation principle involved; more than one grammatical error or any misspelling of words will result in a 1 point penalty.

3: Correct and complete cover page format;the explanation of the paper's finding is unclear and indicates either a lack of understanding of the paper or the incubation principle; more than one grammatical error or any misspelling of words will also result in a 1 point penalty.

1: Correct and complete cover page format;the explanation provided indicates the writer understands neither the paper nor the incubation principle; an otherwise higher-scoring paper may be reduced to this level by numerous grammatical and/or spelling errors.

The 4 (or 5) reports will be graded and returned. At the end of the term, all the reports are to be indexed and bound into a journal . The journal scores will be recorded on a Journal Submission Form provided. If you complete a report but lose it before binding the journal, you will receive no credit for it! An example of the form is posted below. Journal Topics:

Report No.

Date Due
Topic
1
April 4
"Avian Experimenters" or Embryo Development
2
23
The Physical Environment of the Hatching Egg - Prior to or During Incubation
3
May 5
Nutrition and Its Influence on Hatchability
4
19
Disease Pathogens and the Hatchery
5 (Optional)
June 4
Experimental Approaches to Enhance Incubation Efficiency

June 9
"Bound" Journal Reports Submitted

Report Format For The Cover Page

ANS 321 Avian Embryo

(Your name)

Research Journal Report (No.)(Date) 

Topic: ( )

Title: ( )

Authors: ( )

 

 

 (Abstract as printed in the research journal. The abstract may be photocopied or typed exactly as it appears in the journal. Include any key words if listed in the abstract.) Reference: Cite the source as required when submitting a manuscript to Poultry Science (List the authors as follows: Last name of first author first, followed by their initials, then co-authors in the order listed on the article, with initials [FI., MI] followed by their last name; year; title of the paper [only the first word and proper nouns are capitalized]; the journal name is to be correctly abbreviated; journal volume, colon, first page, hyphen, last page. In the above list use periods at each place where a semicolon is used in these directions, and a period at end of citation.)Example: Reinhart, B.S., and G.I. Hurnik, 1984. Traits affecting the hatching performance of commercial chicken broiler eggs. Poultry Sci. 63: 240-245.The format for the subsequent pages of the report is:REPORT (typed, double spaced, maximum of two pages):In your own words, report what the author(s) did, the purpose of their research, the findings / results reported in the paper, and the relevance, e.g.. possible application, of the research findings. Present the information in the above order. Your report should clearly address the chosen topic and could be understood by your fellow students.The report is to be free of grammatical and spelling errors.

Journal Submission Form (Available as a .doc file for printing can be downloaded here)


Laboratory Schedule (Tentative as of March 27)

The understanding of avian embryonic development and its application to the incubation and hatching process requires an awareness of various skills and their appropriate applications. The labs will be organized so that skills and practical applications will compliment the lecture portion of the course to provide you with a sense of industrial reality. Some of the lab assignments will require more than the scheduled lab period requiring daily activities. It is planned so that a variety of avain eggs (chicken, Coturnix quail, turkey, duck, goose,pheasant, ,and chukar ) will be incubated if and as eggs become available.

 
Date
Activities*
April 2
Orientation to the ANS 321 Lab; The Malle Fowl; Incubation of Selected Eggs ; Industry Assessment Reports
9
Examination of Embryos, Days 1-7
16
Examination of Embryos, Days 8-15
23
Examination of Embryos, Days 15-21
30
Hatchery Problems
May 7
Determiniing Factors Affecting Inciubation - Unknowns
14
Determiniing Factors Affecting Inciubation- Unknowns
21
Presentation of Industry Assessment Reports, Pt 1
28
Presentation of Industry Assessment Reports, Pt 2

Laboratory Practical Evaluation

* This schedule is tentative and can change due to unforeseen circumstances/occurrences (e.g., availability of hatching eggs, lecturer's, etc.)Laboratory Grade: This grade will constitute 30 % of the overall final course grade. The lab grade (based upon 100 points) will be derived from four activities (= points available)

1.Industry Assessment Report (30)

2.Special Incubation Experiments (30)

3. Field trip Reports (a total of 10 points,tentatively 5 pts/planned trip)

4. A Lab Practical Final Examination (30)


Relevant Web Sites

Avian Embryo (Miss. State Univ.)

Aviagen.

ChickMaster Incubator Co.

Jamesway Incubator Company

NatureForm

Oasis

Pas Reform

Petersime Incubators

Recognition of Parthenogenesis

Virkon S Hatchery Sanitation


Videotapes

A collection of videotapes with direct relevance to avian incubation are available for your viewing. It is possible that exam questions will be based upon the materials presented.

Week of
Title

Hatching Egg Breakout, UCD (12:30)

Chick Master Incubators (9:45)

Hybrid Turkey

Hatchery Planning and Operations (16:00)

Nicholas Turkey Breeders- Hatchery Sanitation (counter: 1090-2070)

Proper Handling and Administration of Marek's Vaccine, Intervet

Proper Injection Techniques, Intervet

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