ISSN 2007-1124
versión impresa

INSTRUCTIONS TO AUTHORS

• Scope and policy
• Form and preparation of manuscripts
• Sending of manuscripts

Revista Mexicana de Ciencias Pecuarias is a scientific journal published in a bilingual format (Spanish and English) which carries three types of articles: Research Articles, Technical Notes, and Reviews. Authors interested in publishing in this journal, should follow the below-mentioned directives which are based on those set down by the International Committee of Medical Journal Editors (ICMJE) Bol. Of. Sanit. Panam. 1989; 107:422-437.

1. Only original unpublished works will be accepted. Manuscripts based on routine tests, will not be accepted. All experimental data must be subjected to statistical analysis.

2. All contributions will be peer reviewed by a scientific editorial committee. The Editor-in-Chief will notify the author the date of manuscript receipt.

3. A single copy of the manuscript should be submitted, typed in a 12 points font at double space (including the abstract and tables), together with a WordPerfect or MSWord file on disk containing the article for publication. At the time of submission a signed agreement co-author letter should be mailed or faxed (+52 999/941.50.30); co-authors at different institutions can mail or fax this form independently. The corresponding author should be indicated together with his address (a post office box will not be accepted), telephone, fax, and E-mail. Also, papers can be submitted by E-mail (rodriguez.oscar@inifap.gob.mx).

4. To facilitate peer review all pages should be numbered consecutively, including tables, illustrations and graphics, and the lines of each page should be numbered as well.

5. Manuscripts of all three type of articles published in Revista Mexicana de Ciencias Pecuarias should contain the following sections, and each one should begin on a separate page.

Title page
Abstract
Text
Acknowledgments
References
Tables and Graphics

6. Title page. This section should include: a) Title, which should be concise but informative; b) Each author's name, accompanied by their institutional affiliation; c) Departments and institutions to whom the work should be attributed; d) Declarations of discharge of responsibilities, if necessary; e) Name and address of the author responsible for correspondence related to the manuscript; and f) Origin of funding.

7. Abstract. On the second page a summary of no more than 250 words should be included. This abstract should start with a clear statement of the objectives and must include basic procedures and methodology. The more significant results and their statistical value and the main conclusions should be elaborated briefly. At the end of the abstract, and on a separate line, a list of up to 10 key words or short phrases that best describe the nature of the research should be stated.

8. Text. The three categories of articles which are published in Revista Mexicana de Ciencias Pecuarias are the following:

a) Research Articles. They should originate in primary works and may show partial or final results of research. The text of the article must include the following parts:

Introduction
Materials and Methods
Results Discussion
Conclusions and implications

In lengthy articles, it may be necessary to add other sections to make the content clearer. Results and Discussion can be shown as a single section if considered appropriate.

b) Technical Notes. They should be brief and be evidence for technical changes, reports of clinical cases of special interest, complete description of a limited investigation, or research results which should be published as a note in the opinion of the editors. The text will contain the same information presented in the sections of the research article but without section titles.

c) Reviews. The purpose of these papers is to summarize, analyze and discuss an outstanding topic. The text of these articles should include the following sections: Introduction, as many sections as needed that relate to the description of the topic in question, and Discussion.

9. Acknowledgements. Whenever appropriate, collaborations that need recognition should be specified: a) Acknowledgement of technical support; b) Financial and material support, specifying its nature; and c) Financial relationships that could be the source of a conflict of interest. People which collaborated in the article may be named, adding their function or contribution; for example: "scientific advisor, critical review", data collection, etc.

10. References. All references should be quoted in their original language. They should be numbered consecutively in the order in which they are first mentioned in the text. Text, tables and figure references should be identified by means of Arabic numbers. Avoid, whenever possible, mentioning in the text the name of the authors. Abstain from using abstracts as references. Also, “unpublished observations” and personal communications should not be used as references, although they can be inserted in the text (inside brackets).

Key rules for references

a. The names of the authors should be quoted beginning with the last name spelt with initial capitals, followed by the initials of the first and middle name(s). In the presence of compound last names, add a dash between both, i.e. Elías-Calles E. Do not use any punctuation sign, nor separation between the initials of an author; separate each author with a comma, even after the last but one.

b. The title of the paper should be written in full, followed by the abbreviated title of the journal without any punctuation sign; then the year of the publication, after that the number of the volume, followed by the number (in brackets) of the journal and finally the number of pages (this in the event of ordinary article).

c. Accepted articles, even if still not published, can be included in the list of references, as long as the journal is specified and followed by in press (in brackets).

d. In the case of a single author's book (or more than one, but all responsible for the book's contents), the title of the book should be indicated after the names(s), the number of the edition, the country, the printing house and the year.

e. When a reference is made of a chapter of book written by several authors; the name of the author(s) of the chapter should be quoted, followed by the title of the chapter, the editors and the title of the book, the country, the printing house, the year, and the initial and final pages.

f. In the case of a thesis, references should be made of the author's name, the title of the research, the degree obtained, followed by the name of the City, State, and Country, the University (not the school), and finally the year.

Examples

The style of the following examples, which are partly based on the format the National Library of Medicine of the United States employs in its Index Medicus, should be taken as a model.

Journals

Standard journal article (List the first six authors followed by et al.)

I) Basurto GR, Garza FJD. Efecto de la inclusión de grasa o proteína de escape ruminal en el comportamiento de toretes Brahman en engorda. Téc Pecu Méx 1998;36(1):35-48.

Issue with no volume

II) Stephano HA, Gay GM, Ramírez TC. Encephalomielitis, reproductive failure and corneal opacity (blue eye) in pigs associated with a paramyxovirus infection. Vet Rec 1988;(122):6-10.

III) Chupin D, Schuh H. Survey of present status of the use of artificial insemination in developing countries. World Anim Rev 1993;(74-75):26-35.

No author given

IV) Cancer in South Africa [editorial]. S Afr Med J 1994;84:15.

Journal supplement

V) Hall JB, Staigmiller RB, Short RE, Bellows RA, Bartlett SE. Body composition at puberty in beef heifers as influenced by nutrition and breed [abstract]. J Anim Sci 1998;71(Suppl 1):205.

Organization, as author

VI) The Cardiac Society of Australia and New Zealand . Clinical exercise stress testing. Safety and performance guidelines. Med J Aust 1996;(164):282-284.

In press

VII) Scifres CJ, Kothmann MM. Differential grazing use of herbicide-treated area by cattle. J Range Manage [in press] 2000.

Books and other monographs

Author(s)

VIII) Steel RGD, Torrie JH. Principles and procedures of statistics: A biometrical approach. 2nd ed. New York, USA: McGraw-Hill Book Co.; 1980.

Chapter in a book

IX) Roberts SJ. Equine abortion. In: Faulkner LLC editor. Abortion diseases of cattle. 1rst ed. Springfield, Illinois, USA: Thomas Books; 1968:158-179.

Conference paper

X) Loeza LR, Angeles MAA, Cisneros GF. Alimentación de cerdos. En: Zúñiga GJL, Cruz BJA editores. Tercera reunión anual del centro de investigaciones forestales y agropecuarias del estado de Veracruz. Veracruz. 1990:51-56.

XI) Olea PR, Cuarón IJA, Ruiz LFJ, Villagómez AE. Concentración de insulina plasmática en cerdas alimentadas con melaza en la dieta durante la inducción de estro lactacional [resumen]. XXXIV Reunión nacional de investigación pecuaria. Querétaro, Qro. 1998:13.

XII) Cunningham EP. Genetic diversity in domestic animals: strategies for conservation and development. In: Miller RH et al. editors. Proc XX Beltsville Symposium: Biotechnology's role in genetic improvement of farm animals. USDA. 1996:13.

Thesis

XIII) Alvarez MJA. Inmunidad humoral en la anaplasmosis y babesiosis bovinas en becerros mantenidos en una zona endémica [tesis maestría]. México, DF: Universidad Nacional Autónoma de México; 1989.

XIV) Cairns RB. Infrared spectroscopic studies of solid oxigen [doctoral thesis]. Berkeley, California, USA: University of California; 1965.

Organization as author

XV) NRC. National Research Council. The nutrient requirements of beef cattle. 6th ed. Washington, DC, USA: National Academy Press; 1984.

XVI) SAGAR. Secretaría de Agricultura, Ganadería y Desarrollo Rural. Curso de actualización técnica para la aprobación de médicos veterinarios zootecnistas responsables de establecimientos destinados al sacrificio de animales. México. 1996.

XVII) AOAC. Official methods of analysis. 15th ed. Arlington, VA, USA: Association of Official Analytical Chemists. 1990.

XVIII) SAS. SAS/STAT User's Guide (Release 6.03). Cary NC, USA: SAS Inst. Inc. 1988.

XIX) SAS. SAS User's Guide: Statistics (version 5 ed.). Cary NC, USA: SAS Inst. Inc. 1985.

Electronic publications

XX) Jun Y, Ellis M. Effect of group size and feeder type on growth performance and feeding patterns in growing pigs. J Anim Sci 2001;79:803-813. Available: http://jas.fass.org/cgi/reprint/79/4/803.pdf. Accesed Jul 30, 2003.

XXI) Villalobos GC, González VE, Ortega SJA. Técnicas para estimar la degradación de proteína y materia orgánica en el rumen y su importancia en rumiantes en pastoreo. Téc Pecu Méx 2000;38(2):119-134. Disponible: http://www.tecnicapecuaria.org/trabajos/200212175725.pdf. Consultado 30 jul, 2003.

XXII) Sanh MV, Wiktorsson H, Ly LV. Effect of feeding level on milk production, body weight change, feed conversion and postpartum oestrus of crossbred lactating cows in tropical conditions. Livest Prod Sci 2002;27(2-3):331-338. Available: http://www.sciencedirect.com/science/journal/03016226. Accesed Sep 12, 2003.

11. Tables, Graphics and Illustrations. It is preferable that they should be few, brief and having the necessary data so they could be understood without reading the text. Explanatory material should be placed in footnotes, using conventional symbols. Pictures should be printed with the highest quality, in black and white, and in postal size.

12. Final version. This is the document in which the authors have incorporated all the corrections and modifications asked for by the editors. It should be sent as a single original print, and also as a MS Word file on a disk. Graphs and figures should be submitted separately in MS Word, MS Power Point, or Excel. Together with the final printed version and as a file on disk, copies which include the corrections made by the Committee Reviewer should be sent to the Editor-in-Chief.

13. Once accepted, the final version will be translated into Spanish or English, although authors should feel free to send the final version in both languages. No charges will be made for style or translation services.

14. Thesis will be published as a Research Article or as a Technical Note, according to these guidelines.

15. Manuscripts not accepted for publication will be returned to the author together with a note explaining the cause for refusal, or suggesting changes which should be made for re-assessment.

16. List of abbreviations:

–cal calorie (s)
–cm centimeter (s)
–ºC degree Celsius
–DL50 lethal dose 50%
–g gram (s)
–ha hectare (s)
–h hour (s)
–i.m. intramuscular (..ly)
–i.v. intravenous (..ly)
–J joule (s)
–kg kilogram (s)
–km kilometer (s)
–L liter (s)
–log decimal logarithm
–Mcal mega calorie (s)
–MJ mega joule (s)
–m meter (s)
–µl micro liter (s)
–µm micro meter (s)
–mg milligram (s)
–ml milliliter (s)
–mm millimeter (s)
–min minute (s)
–ng nanogram (s)
–P probability (statistic)
–p page
–CP crude protein
–PCR polymerase chain reaction
–pp pages
–ppm parts per million
–% percent (with number)
–rpm revolutions per minute
–sec second (s)
–t ton (s)
–TDN total digestible nutrients
–AU animal unit
–IU international units
–vs versus
–xg gravidity

The full term for which an abbreviation stands should precede its first use in the text.

17. Scientific names and other Latin terms should be written in italics.

Manuscripts should be sent in hardcopy and as a file in disk to the:

Main Editor, Dr. Oscar Rodriguez-Rivera,
Calle 36 # 215 x 67 y 69 Col. Montes de Amé
C.P. 97115 Mérida, Yucatán.
Tel. 999/941.50.30.

Mexico or by e-mail to rodriguez.oscar@inifap.gob.mx, or faxed to +52 (999) 926 3046, in accordance with specifications described in the Guide for authors section.

A covering author permission letter should be attached.