Notes to author

Revista Mexicana de Ciencias Pecuarias is published in its entirety in two languages (Spanish and English) and publishes three categories of papers: Scientific Articles, Research Notes and Bibliographic Reviews.

Authors interested in publishing in this journal must comply with the guidelines indicated below, which, in general terms, are in accordance with those developed by the International Committee of Medical Journal Editors (ICMJE) Bol Oficina Sanit Panam 1989;107:422-437.

1. Only unpublished works will be accepted. They will not be admitted if they are based on routine tests, or experimental data without statistical study when this is indispensable. Nor will works that have been previously published condensed or in extenso in Proceedings or Symposium of Meetings or Congresses (with the exception of Abstracts) be accepted.

2. All papers will be subject to review by a Scientific Editorial Committee, made up of Peers of the Discipline in question, who will not know the name and Institution of the proposing authors. The Editor will notify the author of the date of receipt of their work.

3. The manuscript must be submitted through the portal of the Journal at the electronic address: http://cienciaspecuarias.inifap.gob.mx, consulting "Instructions for submitting articles on the web page of Revista Mexicana de Ciencias Pecuarias". For its preparation, the Microsoft Word processor will be used, with Times New Roman font at 12 points, double-spaced. The author who submits the manuscript on the platform, must only serve as corresponding author, Editorial Committee will have only communication with him. Likewise, the forms of submission, letter of originality and non-duplicity, which are available on the official website of the journal, must be completed.

4. Because it is a peer-reviewed journal, and to facilitate the work of the reviewers, all the lines of each page must be numbered continuously throughout the document; each page must also be numbered, including tables, illustrations, and graphs.

5. The articles will have a maximum length of 20 double-spaced pages, not including Title pages, and tables or figures (which must not exceed eight and must be included in the text). The Research Notes will have a maximum length of 15 pages and 6 tables or figures. Bibliographic Reviews a maximum length of 30 pages and 5 tables.

6. The manuscripts of the three categories of papers that are published in Rev. Mex. Cienc. Pecu. must contain the components indicated below, each of them starting on a separate page.
Title page
Abstract in Spanish
Abstract in English
Text
Acknowledgments and conflict of interest
Literature cited

7. Title Page. It must only contain the title of the work, which should be concise but informative, as well as the title translated into Spanish. The manuscript should not include information such as names of authors, departments, institutions, correspondence addresses, etc., since these data will have to be registered during the process of capturing the application on the OJS platform (look at the Instructions for submitting articles at the address: http://ciencias pecuarias.inifap.gob.mx.

8. Abstract in Spanish. On the second page, an abstract that does not exceed 250 words must be included. It will indicate the purposes of the study or research; the basic procedures and methodology used; the most important results found, and if possible, their statistical significance and main conclusions. After the abstract, and on a separate line, add, properly labeled, 3 to 8 key words or short phrases that help indexers classify the work, which will be published along with the abstract.

9. Abstract in English. Write down the title of the work in English and then write the "abstract" with the same instructions that were indicated for the abstract in Spanish. At the end, and on a separate line, the corresponding keywords must be written.

10. Text. The three categories of papers that are published in Rev. Mex. Cienc. Pecu. consist of the following:

a) Scientific Articles. They must be reports of original works derived from partial or final results of studies. The text of the Scientific Article is divided into sections that have these headings:
Introduction
Material y methods
Results
Discussion
Conclusions and implications
Literature cited

In long articles, it may be necessary to add subheadings within these divisions in order to clarify the content, both in Material and methods and in the Results and Discussion sections, which can also be presented as a single section.

b) Research Notes. They consist of modifications to techniques, reports of clinical cases of special interest, preliminary work or limited research, description of new grass varieties, as well as research results that, in the opinion of the editors, should be published. The text will contain the same information as the experimental method referred to in subparagraph (a) but will be worded continuously from the beginning to the end of the work; this does not mean that subheadings are only deleted, but that it is written in a continuous and consistent manner.

c) Bibliographic Reviews. They consist of the treatment and presentation of a topical and important theme or issue; they purpose is to summarize, analyze and discuss, as well as to make available to the reader information already published on a specific theme. The text is divided into: Introduction, and the sections that correspond to the development of the topic in question.

11. Acknowledgements and conflict of interest. Where appropriate, collaborations that need to be recognized must be specified, such as a) technical assistance received; b) appreciation for financial and material support, specifying the nature of the support; c) financial relationships likely to give rise to a conflict of interest. People who collaborated can be cited by name, adding their function or type of collaboration; for example: "scientific advisor", "critical review of the proposal for the study", "data collection", etc. Where appropriate, authors should mention if there is any conflict of interest.

12. Literature cited. Number references consecutively in the order in which they are first mentioned in the text. References in the text, tables, and illustrations must be identified by arabic numerals in parentheses, without indicating the year of reference. Avoid, as far as possible, having to mention in the text the name of the authors of the references. Try not to use abstracts as references; "unpublished observations" and "personal communications" must not be used as references, although they may be inserted in the text (in parentheses).

Basic rules for Literature cited

Name of the authors, with capital letters only the initials, starting with the paternal surname, then initials of the maternal one and name (s). In case of compound surnames, a hyphen must be put between them, example: Elías-Calles E. Between the initials of an author, no punctuation mark, or separation should be placed; after each author, only a comma must be placed; after the last author, a period must be placed.

The title of the paper must be written in full (in its original language) then the abbreviated title of the journal where it was published, without any punctuation mark; immediately after, the year of publication, then the volume number, followed by the number (in parentheses) of the journal and finally the number of pages (this in the case of an ordinary journal article).

The list of references may include accepted articles, even if they are not yet published; indicate the journal and add "in press" (in square brackets).

In the case of books by a single author (or more than one, but all responsible for the total content of the book), after the name or names, the title of the book, the edition number, the country, the publishing house, and the year must be indicated.

When it comes to the chapter of a book by several authors, the name of the author of the chapter must be indicated, then the title of the chapter, then the name of the editors and the title of the book, followed by the country, the publishing house, year, and the pages covered by the chapter.

In the case of a thesis, the following must be indicated: name of the author, the title of the work, then the degree (bachelor’s, master’s, doctorate) in brackets, then the name of the city, state and, where appropriate, country, followed by the name of the University (not the school), and finally the year.

Use the style of the following examples:

Journals
Ordinary article, with volume and number. (Include the name of all authors when they are six or less; if there are seven or more, write down only the name of the first six and add "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.
Only the number without indicating the 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.

      The author is not indicated.
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 the process of publication.
VII) Scifres CJ, Kothmann MM. Differential grazing use of herbicide treated area by cattle. J Range Manage [in press] 2000.

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

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

      Meeting proceedings.
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]. 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
VI eltsville Symposium: Biotechnology’s role in genetic improvement of farm animals. USDA. 996:13.

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. http://jas.fass.org/cgi/reprint/79/4/803.pdf. Accessed 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. http://www.tecnicapecuaria.org/trabajos/20021217 5725.pdf. Consultado 30 Ago, 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. http://www.sciencedirect. com/science/journal/03016226. Accessed Sep 12, 2003.

13. Tables, Graphs, and Illustrations. It is preferable that they be few, concise, with the necessary data to be self-sufficient, that they be understood alone without having to read the text. For footnotes, conventional symbols should be used.

14 Final version. It is the document in which the authors have already integrated the corrections and modifications indicated by the Review Committee. Instructions that will contain the essential points for its correct preparation will be sent to the authors. Photographs and images must be in jpg format (or compatible) with at least 300 dpi resolution. Photographs, images, graphs, charts, or tables must be included in the same text file. Tables should not contain any vertical lines, and horizontal lines should contain only those delimiting column headings, and the line at the end of the table.

15. Once the final version is received, it will be sent for translation into English or Spanish, as appropriate. If the authors consider it convenient, they may send their final manuscript in both languages.

16. Thesis. They will be published as an Article or Research Note, as long as they conform to the standards of this journal.

17. Works not accepted for publication will be returned to the author, with an annex explaining the reasons why it is rejected or the modifications that must be made to be reevaluated.

18. Frequently used abbreviations:

cal calorie (s)
cm centimeter (s)
°C degree centigrade (s)
LD50 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 megacalorie (s)
MJ megajoule (s)
m meter (s)
masl meters above sea level
µg microgram (s)
µL microliter (s)
µm micrometer (s)(micra(s))
mg milligram (s)
mL milliliter (s)
mm millimeter (s)
min minute (s)
ng nanogram (s)
P (statistical) probability
p page
CP crude protein
PCR polymerase chain reaction
pp pages
ppm parts per million
% per cent (with number)
rpm revolutions per minute
sec second (s)
t tonne (s)
TDN total digestible nutrients
AU animal unit
IU international units
vs versus
xg gravities
Any other abbreviation should be placed in parentheses immediately after the full word(s).

19. Scientific names and other Latin phrases must be written in italics