ISSN 1682-3419
  versión impresa

ISSN 1609-9117
versión online 





The journal publishes original scientific articles related to the field of the veterinary sciences, especially in the areas of production and animal health, public health and veterinary education, as well as in basic areas of anatomy, histology, pharmacology, physiology, nutrition, forage and genetics. The works can deal with pets, of production, of wildlife, and of laboratory.

The publications fall within the following categories:

a) Scientific article. Research project that has not been published in another research journal and that is written in such a way that the pairs of the author can reproduce the experiments and obtain similar results, as well as confirm the accuracy of the analyses used to reach the conclusions arising in the document, on the basis of the indications in the text. The basic format includes summary in Spanish and English, introduction, material, and methods, results, discussion (and conclusions), and cited literature, not to exceed 25 pages.

b) Review article. Prepared by experts who summarize, analyze and, in particular, discuss published research articles on a field. They do not adjust to a specific format. The authors should consult the editor before beginning the review work. They should not exceed 40 pages.

c) Short communications. Reports on preliminary results or of research tests, clinical observations, methods, techniques or procedures which are new, modified or validated. Insofar as possible, they should adjust to the format of the scientific article and they should not exceed 10 pages.



- Write the document in Spanish, using Microsoft Word (or compatible), in A4format, with 25 mm margins, double-spaced (except for the tables), using Times New Roman regular 11. Number the pages consecutively in the right-hand lower corner of each page. Number the lines initiating each page with issue 1.
- Principal titles (headings of every section: Summary, Abstract, Introduction, Material, and Methods, Results, Discussion, and Literature) should be centered, in capital letters, and in boldface.
- Titles of first order are placed in bold, in the left margin, separate line, and without period. The text that follows begins in a separate paragraph.
- Titles of second order are placed in cursive, in the left margin. They can go in a separate line without period, or at the beginning of the first line of the paragraph, followed by a period.
- For titles of 1st and 2nd order, the first letter of each word goes in capital letter, except for conjunctions and prepositions. These titles are optional and are used depending on the type of existing information and the need for making independent paragraphs within sections.
- Paragraphs are justified on both sides, start with a tab of 1.27 cm, and are separated among themselves with a blank line.
- Use brief and precise phrases in the drafting of the document, with active verbs and avoiding the use of the first person.
- Tables and figures are ordered with Arabic numbers and with self-explanatory titles.
- The scientific names of plants and animal are placed in italics.

Initial Page
- The first page of the document should contain:
a) Title of the article in Spanish and English, b) short Title, c) Name and surnames of every author and, at the bottom of page, the institutional affiliation, d) Name of the institution or entity (including the department, section, or laboratory, when appropriate) that holds the responsibility of the work, e) Author responsible for the correspondence for the work (mailing address, telephone, fax, E-mail, and Web page), f) principal financial source of the study, and g) indicate if the scientific article is derived from a work of thesis (to include the name of the author of the thesis).
- The title of the article identifies the content of the study. It should be descriptive, brief and clear and contain neither acronyms nor abbreviations.
- The short title is an abbreviated title of no more than 80 characters including spaces that it will appear in the upper part of the odd pages of the published work.
- The author, in order to be considered as such, should have sufficiently participated for assuming the public responsibility of the content of the work. Furthermore, he should have substantially contributed in a) the conception and design of the study, or in the analysis and the interpretation of the data; b) the drafting of the article or the critical review of a substantial part of its intellectual content; and c) the final approval of the version that will be published.
- The editors can request the authors to justify the assignment of its authorship.

Summary and Abstract
- Initiate the second page with the Summary, followed by the Abstract, which should contain the same information, but in English.
- Summarize the objectives, procedures, principal results, and the conclusions of the research on a single clear and concise paragraph, of no more than 300 words.
- It cannot contain tables, figures, bibliographic references, nor abbreviations or acronyms, unless they are of common use or they are defined in the same Summary.
- Place at the end of the Summary (and of the Abstract), leaving a blank line, 4 to 6 key words (key words) for indexing purposes, separated by commas and without period in small letter, with the exception of proper names.

- Describe nature of the problem under study, present works carried out by other authors in the field under study (without performing an extensive review of the subject), and indicate if the present study is an attempt to improve the problem or increase the existing knowledge of the subject. –
- Do not use more than four references in order to support a concept or idea.

Materials and Methods
- Describe the animals under study, including the species, race, sex, age, feeding, and breeding system, the geographical location, and period of the study, as well as the mechanisms used for the development of the work, including the form of data collection, experimental design (if available) and the type of statistical analysis used.
- Indicate the methods, providing the references when necessary and the important equipment, as well as the drugs and chemical products used, including the generic name, dosage and forms of administration (the name of the manufacturer, if necessary, is placed as footer).
- Use references for the used techniques or describe them in detail if they are new or have been modified.
- In studies with interventions in animals, indicate the entity or organ of ethics that has approved the procedures used and took care of the animal well-being. Moreover, in experimental studies with human beings, indicate if the ethical standards of the Helsinki Declaration of 1975, modified in 1983 were followed.
- Describe the inclusion and exclusion criteria of the experimental subjects, as well as the statistical model, classification variables, experimental units used and the process followed in the randomization.
- Restrict the "significant" and "highly significant" use of the terms for differences at the level of p<0.05 and p<0.01.

- Present the information in the form of text, tables, and figures following a logical sequence.
- Describe the actual findings and the result of the statistical analyses, supported with tables and figures. Present the numerical data with indicators of error or of uncertainty (as the confidence intervals).
- Do not repeat the data of the tables or figures in the text, but emphasize or summarize the most important observations. Do not repeat indicated concepts in the methodology, neither present the same information in tables and figures. Express the units of measure in accordance with the International System of Units (SI).
- This section can be combined with the Discussion (Results and Discussion).

- Explain the meaning of the results with the support of bibliographic references, as well as their implications in future research. Compare the observations carried out with those of other pertinent studies. Put emphasis on new and important aspects of the study and in the conclusions derived from them. Discuss the theoretical or practical implications of the study.
- Avoid assertions or conclusions insufficiently endorsed by data or with results without statistical support. Do not repeat data and information presented in the previous sections. Do not make assertions on costs or economic benefits, unless included in the work data and economic analyses.

- Present in a very brief form (1-2 lines) the principal findings and statements product of the study. Use bullets, if there are several conclusions.
- Avoid conclusions and personal opinions that are not backed by the presented data. Suggestion to continue investigating on the subject is not a conclusion.

- Should appear as footer in the first page.
- Assistance of people and institutions that significantly contributed to the development of research should be acknowledged, as well as the entity that financed the study.

- Use the recommendations of the Scientific Style and Format: The CBE Manual for Authors, Editors, and Publishers, 6th edition (1994) with the name-year system (CBE, Council of Biology Editors).
- Number the references in the text and present them in alphabetical order. If two or more references of the same authors appear in the text, they are ordered per year of publication; if these are published in the same year they are ordered by alphabetical order of the titles of the articles, adding a suffix per year of publication (for example, 2005th, 2005b); and if it has two or more references of the same year of publication and with three or more authors, where the first author is the same, a suffix is added to the year of publication as in the previous case.
- Limit the number of references to the most pertinent or actual.
- The first word and the proper names in the titles of the publications should only go in capital letters.
- Avoid citing summaries and literature of publications that are not scientific.
a) Articles of scientific journals
Voge JL, Wheaton JE. 2007. Effects of immunization against two inhibin antigens on daily sperm production and hormone concentrations in ram lambs. J Anim Sci 85: 3249-3255.
Shen HM, Zhang QF. 1994. Risk assessment of nickel carcinogenicity and occupational lung cancer. Environ Health Perspect 102 (Suppl.1): 275-282.

b) Books
Arthur GH, Noakes DE, Pearson H. 1991. Reproducción y obstetricia veterinaria. 6ª ed. Madrid: McGraw-Hill. 150 p.

c) Chapters of book
Argenti P, Ly J, Espinoza F. 2007. Evaluación del efecto de secuestrantes en el control de micotoxinas en alimentos para cerdos en crecimiento. En: XX Reunión ALPA. Cusco: Asociación Latinoamericana de Producción Animal.

d) Summaries of congresses or meetings
Chacón J. 2005. Detección de animales portadores del virus de la diarrea viral bovina en un establo vacunado y en otro sin vacunar del valle de Lima. Tesis de Médico Veterinario. Lima: Univ. Nac. Mayor de San Marcos. 48 p.

e) Thesis
Chacón J. 2005. Detección de animales portadores del virus de la diarrea viral bovina en un establo vacunado y en otro sin vacunar del valle de Lima. Tesis de Médico Veterinario. Lima: Univ. Nac. Mayor de San Marcos. 48 p.

f) Scientific report or technician
[OMS] Organización Mundial de la Salud. 1994. Factores de riesgo de enfermedades cardiovasculares: nuevas esferas de investigación. Ginebra: OMS. Serie de Informes Técnicos. 841 p.

g) Electronic material in CD ROM
Best CH. 2003. Bases fisiológicas de la práctica médica [CD-ROM]. 13ª ed. Madrid: Editorial Médica Panamericana. 356 p.

h) Article in electronic journal
Aparicio-Acosta FM. 2000. Universidad y sociedad en los albores del 2000. Relieve 6 [Internet], [28 noviembre 2007]. Disponible en:

i) Website.
Portal Agrario. 2007. Lima: Ministerio de Agricultura. [Internet], [12 agosto 2007]. Disponible en:

- Tables should be cited in the text. They are presented on individual pages, vertical position and at the end of the section where they were cited.
- Title in the upper part begins with the word "Table", followed by the corresponding number. Small letter should be used except for proper names and acronyms. No period at the end of the title.
- Each column should be identified and the first letter of the heading goes in capital letters. The explanations are placed as footers
- Tables only use horizontal lines in the heading and in the footers. They do not use vertical lines.
- Identify the statistical measures of variation, such as the standard deviation or the standard error of the mean.

- Figures include graphics, photographs, images, maps, and diagrams. They should be cited in the text. They are presented on individual pages and at the end of the section where they were cited.
- The title and the legend are placed in the lower part of each figure. The title begins with the word "Figure", followed by the corresponding number. It goes in small letters, with the exception of the proper names and acronyms. Symbols, arrows, numbers, or letters in the figures have to be clear and legible, and identify their meaning in the legend.
- Lines, bars, and symbols should be in black color.
- Axis should have a descriptor and a unit, separated by a comma.
- Microphotographs should specify the scale and, if necessary, the stain method.
- If two or more figures (graphics, photographs, etc.) are jointly presented, they should be aligned and duly identified (1st, 1b, 1c, etc.).
- If the figure has been previously published (with the exception of documents of public domain), cite the original source at the end of the legend.
- Photographs, maps, and illustrations should be of high resolution and electronically attached in jpg or bmp format.
- Color Figures will be published if the deemed appropriate; however, the printing costs can be charged to the author.

Units of measure
- All the hematological and biochemical parameters values are presented in the metric system units, in accordance with the International System of Units (IS).
- Length, height, weight and volume measures are expressed in metric units (meter, kilogram, liter) or its decimal multiples.
- Temperatures are expressed in degrees Celsius and blood pressures in millimeters of mercury. In centrifugation, g-force is used (g) and not revolutions per minute (rpm).
- In numerical values, the period shows the separation among whole numbers and fractions (example: 3.45). The comma is used to separate numbers with more than three digits (example: 1,234.5). Zero (0) is placed to the left of the point in numbers less than one (0.3).
- Do not begin a phrase with a number. Use another expression or spell the number and the corresponding unit.
- When referring to percentages, the symbol is placed together with the number without a blank space among them (85%).
- Whenever a number lower than 10 is mentioned and is not followed by a unit of measure, this should be spelled (example: four animals, 14 diets, two times, etc.). If a series of similar elements that include numbers of more and less than 10, numerical characters should be used.

Abbreviations and symbols
- Use only standard abbreviations. Units of measure abbreviations are used when they go immediately after a number. Avoid abbreviations in the title and in the summary.
- When using an abbreviation in the text for the first time, it should go in parentheses preceded of the complete term, except if it refers to a common unit measure.
- The summary, as well as every table and figure, should be explained independently, so that the abbreviations should be defined in detail in every case.
- All the abbreviations of the units of measure are written in singular, although they refer to plural units (example, sem, not sems; kcal, not kcls; kg, not kgs).
- Latin terms as in vivo, in vitro, in situ, a priori, ad limitum should be written in italics.
- The use of "and/or" is not permitted. Use the most adequate or change the expression.
- Use the 24-hours system when referring to the time (Example: 14:10 instead of 2.10 p.m.).

Bibliographic references in the text
- References in the text should indicate the concept and the author in parentheses (Smith, 2005) or indicate that certain author points out [according to Jones (1975) more weight is obtained …]
- If two or more references are included within a single phrase, they should be arranged in chronological order. If the year of publication is the same, they should be arranged in alphabetical order. If the same author has several publications with different dates, they should be cited with the surname of the author followed by the years of the publications. (García et al., 1999; Pérez and Vega, 2001; Ogata, 2006) (Ball, 2004; Smith, 2004) (Gil and Chávez, 2002, 2004)
- If the reference has one or two authors, indicate the surname (s) and the year of publication. If it has three or more authors, only indicate the surname of the first author followed by et al. and the year of publication. If the authors have the same surname, the initials are included.
1 author: García (2004)
2 authors: Vega and Hillock (2001)
3 or more authors: Shepherd et al. (1999)
Similar Surname: Li, T. and Li, C. (1998)
- If the reference is from an institution, preferably use the abbreviated name in the text. However, if seldom cited, the name could be used in extensive.
The number of alpacas in the country is of 3'192,870 (MINAG, 2005). The number of alpacas in the country is of 3'192,870 (Ministerio de Agricultura, 2005).
- The information on unpublished studies is cited in the text as «observations not publisshed» or "unpublished data" and the name of the person is included. Reference is not included in Cited Literature. (J. Alva, unpublished data)
- Verbal information is cited as «personal communication». The name of the person and the city where it occurred is included, but the reference is not placed in Cited Literature. (J. Loyal, Bogotá, personal communication)

- When using the postal mail or personal delivery, present two hard copies of the manuscript in Bond A4 paper
- Color Figures should be printed in color and a diskette or duly labeled CD containing the work in a Word file and photographs, maps and illustrations in jpg or bmp format. Office of the RIVEP: Av. Circunvalación Cuadra 28 s/n San Borja, Aptdo. 03-5137.
- Articles can, alternatively, be sent by E-mail to:
- In both cases, the author responsible for the correspondence for the work will receive, via E-mail, a confirmation of receipt of the manuscript.
- RIVEP does not charge printing costs to the authors.

- The RIVEP Editor will confirm that the subject of the manuscript is related to the topic of the journal and that document format agrees with the requested specification.
- Works that meet these requirements will be derived to the Editorial Committee for technical review.
- Reviewers maintain the confidentiality of the content of the manuscript, carry out a professional review of the document, and prepare their report clearly and precisely, with remarks and suggestions.
- The Editor, once finished with the review process, sends the authors a report indicating: a) the acceptance of the work for publication, b) the acceptance subject to corrections suggested by the revisers, or c) the rejection of publication.
- Authors whose works are subject to corrections, should resolve them and return a letter accepting the suggestions, presenting the modifications or justifying the reasons why they would not to accept these modifications.
- The Editor, on the basis of the authors’s response, will approve or reject the manuscript and will communicate the final decision to the authors. Moreover, an electronic letter to the authors indicating the corresponding reasons will be sent.


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