INVESTIGACIÓN EN LA CUNICULTURA DE LAS AMÉRICAS RABBITRY RESEARCH IN THE AMERICAS

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1 INVESTIGACIÓN EN LA CUNICULTURA DE LAS AMÉRICAS RABBITRY RESEARCH IN THE AMERICAS TÍTULO DE LA OBRA: RABBITRY RESEARCH IN THE AMERICAS 1a. Edición, 2015 EDICIÓN PUBLICADA POR: Universidad Autónoma del Estado de México, UAEM Facultad de Medicina Veterinaria y Zootecnia, Campus El Cerrillo Rama Americana de la Asociación Mundial de Cunicultura, AB- WRSA American Branch of the World Rabbit Science Association COMPILADORA Y EDITORA: Yazmín Elizabeth Felipe Pérez MVZ., Dra. en C., Departamento de Reproducción Animal, Laboratorio de Biología de la Reproducción, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México PROPIEDAD DE: Universidad Autónoma del Estado de México, UAEM Instituto Literario 100. Colonia Centro. Toluca Estado de México. México. C.P Reservados todos los derechos. No se permite la reproducción total o parcial de este libro, sin el permiso previo y por escrito del titular del copyright. ISBN: Hecho en México

2 USE OF RECORDS TO DETERMINE THE CAUSE OF MORTALITY IN RABBITS AT DIFFERENT TIMES OF THE YEAR IN UNIT EXPERIMENTAL COLLEGE AUTONOMOUS CHAPINGO *1HERNANDEZ R. M., 2CAMPOS H. M., 1RIVERA M. J., 3HERRERA B. J., 1NICOLAS G. A. AND 3GONZALEZ S. J. 1. Universidad Autónoma Metropolitana Unidad Iztapalapa. Rafael Atlixco No. 186, Col. Vicentina, Delegación Iztapalapa, C.P , D.F. México. Departamento de Biología de la Reproducción. 2. Universidad Autónoma de Chapingo. Carretera México-Texcoco, Kilometro 38.5, Texcoco, C.P , Estado de México. 3. Universidad Autónoma Metropolitana Unidad Xochimilco. Calzada del Hueso 1100, Col. Villa Quietud, Delegación Coyoacán, C.P , D.F. México. Departamento de Producción Agrícola y Animal. *Corresponding author: marchela_011@hotmail.com The municipality of Texcoco has an average altitude of 2250 meters above sea level, its climate is considered temperate semi-dry, with an average annual temperature of 15.9 C and an average annual rainfall of 686 mm. Any system of meat production has as reason for the transformation of plants to animal protein of high nutritional value for human consumption. The production of rabbit meat is valuable, especially when it comes to providing high protein at low cost, since it is found that the rabbit can transform 20 % of dietary protein absorbed in the flesh. In the Autonomous University of Chapingo in Mexico, the records were studied and the percentage share of various causes of death (9 categories) of rabbits in different climatic seasons (spring, summer, autumn and winter) and three production stages (infant described, fattening and breeding) for a consecutive year (May May 2011). During this period the total rabbit population were 31,046. The highest mortality occurred during the summer. Pneumonia was the leading cause of death cause with %. Pneumonia deaths occurred in a higher percentage during the autumn time, where most mortality

3 was detected in suckling and fattening stages with % and % respectively. Digestive diseases were shown to be the leading cause of death in each of the production stages during the summer with %. 456

4 INVESTIGACIÓN EN LA CUNICULTURA DE LAS AMÉRICAS RABBITRY RESEARCH IN THE AMERICAS We conclude that environmental facilities-effect relationship is an important risk factor for the occurrence of diseases that results in death of the rabbits in all production stages. Therefore animal welfare and economic losses by reducing mortality are factors when root causes are considered as correct and the negative effects of risk factors through changes in the management of the ship are identified. Knowledge of the causes of mortality can be achieved through the inclusion of this variable in the records maintained in production. The more information concerning this variable is achieved to obtain the records, better improvement strategies in handling animals. Keywords: records, meat production, mortality, animal welfare.

5 CRYOPRESERVATION OF ORNAMENTAL RABBIT (LION HEAD) SPERM RIVERA MJG1 VALOS RA2, 1. i er i o e ro oli Iztapalapa. Department of Biology of Reproduction. Mexico, D.F. i er i o e ro oli Xochimilco. Department of Agricultural and Animal Production. Mexico, D. F. 3. Student of the Bachelor of Veterinary Medicine, UAM-X. 4. Student of Bachelor of Animal Production, UAM-I. *Corresponding author: rmjg@xanum.uam.mx The ornamental rabbit production has increased in the last 10 years, this production is given by the demand for companion pets for their different aspects and phenotypic characteristics, however, in this type of production have been no studies on its reproductive management, particularly in the quality of semen of stallions used much less in the cryopreservation of genetic material. Therefore the objective of this study was to determine the seminal indicators in fresh and thawed sperm lion head rabbit. 10 ejaculates were collected by artificial vagina three stallions lion's head, the sample obtained was evaluated gross motility, progressive motility and live sperm then cryopreserved using DMSO 6% to defrost gross motility and live spermatozoa was evaluated. The results obtained in fresh for gross motility were 4, progressive motility ± 6.18 and live spermatozoa ± When thawing was obtained a progressive mobility of ± 6.41 and live sperm ± We conclude that sperm lion head rabbit can be cryopreserved, obtaining acceptable results to defrost. Keywords: ornamental rabbits, lion head, sperm, cryopreservation.

6 MORPHOMETRIC CHARACTERIZATION OF SPERM IN THREE LINES OF ORNAMENTAL RABBITS LEZ SJA2 i er i o e ro oli Iztapalapa. Department of Biology of Reproduction. Mexico, D. F. i er i o e ro oli Xochimilco. Department of Agricultural and Animal Production. Mexico, D. F. 3. Student of the Bachelor of Veterinary Medicine, UAM-X. 4. Student of Bachelor of Animal Production, UAM-I. *Corresponding author: rmjg@xanum.uam.mx Production of ornamental rabbits found a boom in the last ten years due to the demand for these pets by their phenotypic characteristics that make them attractive, however, do not have any studies where the morphometric characteristics of their sperm are evaluated. Therefore the objective of this study was to evaluate the sperm morphometry by evaluating three lines of ornamental rabbits (Dutch Dwarf, Mini Rex and Lop Lion Head). Five ejaculates were obtained from each stud, using one artificial vagina, for morphometry evaluation, a digital microscope was used; OPTISUM MIC990FT DC- M900, software Scop-Photo and observed with a 100X objective. The results in terms of total length were: Dwarf Dutch ± μm, Mini rex ± 0.22 μm and Lop Lion Head ± 0.39 μm. We conclude that there is difference morphometric between sperm of the three lines studied ornamental rabbits. Keywords: morphometry, sperm, ornamental rabbits.

7 MORPHOMETRIC CHARACTERIZATION OF SPERM IN THREE LINES OF ORNAMENTAL RABBITS LEZ SJA2 i er i o e ro oli Iztapalapa. Department of Biology of Reproduction. Mexico, D. F. i er i o e ro oli Xochimilco. Department of Agricultural and Animal Production. Mexico, D. F. 3. Student of the Bachelor of Veterinary Medicine, UAM-X. 4. Student of Bachelor of Animal Production, UAM-I. *Corresponding author: rmjg@xanum.uam.mx Production of ornamental rabbits found a boom in the last ten years due to the demand for these pets by their phenotypic characteristics that make them attractive, however, do not have any studies where the morphometric characteristics of their sperm are evaluated. Therefore the objective of this study was to evaluate the sperm morphometry by evaluating three lines of ornamental rabbits (Dutch Dwarf, Mini Rex and Lop Lion Head). Five ejaculates were obtained from each stud, using one artificial vagina, for morphometry evaluation, a digital microscope was used; OPTISUM MIC990FT DC- M900, software Scop-Photo and observed with a 100X objective. The results in terms of total length were: Dwarf Dutch ± μm, Mini rex ± 0.22 μm and Lop Lion Head ± 0.39 μm. We conclude that there is difference morphometric between sperm of the three lines studied ornamental rabbits. Keywords: morphometry, sperm, ornamental rabbits.

8 REPRODUCTIVE MANAGEMENT OF RABBIT BACKYARD PRODUCTION IN THE AREA OF VOLCANOES IN THE STATE OF MEXICO RIVERA MJ*1, NICOLAS GA1, HERRERA BJ2, HERNANDEZ RM1, ALMARAZ AR1 AND GONZALEZ SJ1 i er i o e ro oli i l el li o o Col i e i ele i l C i o e r e o e iolo e l e ro i. 2. Universidad o e ro oli i o i il o C l el e o Col ill ie ele i Co o C i o e r e o e ro i r ola y Animal. *Corresponding author: rmjg@xanum.uam.mx The backyard rabbit production is an activity in which, for easy keeping and relative small space can provide protein for all the family members. To ensure that here is a production it must be taken into account the technical aspect such as food, health and specially the reproduction issues. Objective. The following management study shows that small-scale breeders performed on their farms in the productive and reproductive aspects. Methodology. The study was conducted in 10 municipalities in the volcanoes area of at the Southeast of the Mexican Valley. 55 interviews were carried out to small producers, using a structured survey. Results. A total of 2910 doe rabbits were located in the area. The r bbi breeds were New Zealand, Hybrid, California and Creole;; 28.5%, 27%, 22.6% and 21.8% were reported, respectively. Al most all runs an external stallion and most uses 4 times per month (41.8%). The annual number of births varies according to the intensity with which the doe but this data is handled accentuated between 4 and 6 (66.1%), as reported 7 and 8 births (41.5%). The doe reproductive life varies from 12 to 24 months; 38.8% cases reported that they use from 12 to 18 months in 25.6% cases, and 39.6% cases for 24 months. 90% cases reported to give one services per doe and 4% give two and 6% cases 3 services. None reported deformities in their kits. Discussion and conclusion. Reproductive management for productions backyard area of volcanoes in the state of Mexico courage positive data at weaning as the number of weaned rabbits for the majority of backyard rabbit producers is high. 526 N THE AMERICAS With these data rabbit production for auto-consumption is considered good enough, and may cover part of the nutritional needs of farm families. Besides the local restaurants consume most of the rabbit production, which made be consider as an important touristic corridor at the volcanoes area. Keywords: volcanoes area, reproduction, backyard production