Reproduction and Physiology

All Items

• Reproductive behaviour of the creole goat managed extensively in the different altitudinal levels of the dry tropic of southern of Ecuador-South America

  Edgar Aguirre, Miguel González-Muñoz, Cesar Benavidez-Silva

  155-161
• Induction of estrus with male effect, using vasecomized rams associated or not with ewes in heat in Merino ewes during seasonal anestrus: practical experiences in Uruguay

  Eduardo Lorenzelli, Rodolfo Ungerfeld

  29-35
• Comparison of two methods to measure the area of ultrasonography images of corpus luteum in sheep

  Sol Lafourcade, Juan Pedro Bottino, Marcelo Ratto, Rodolfo Ungerfeld

  305-309
• Spontaneous recovery in dairy cows with subclinical endometritis

  Emanuel Adrián Frana Bisang, Ivana Barbona , Pablo Roberto Marini, Maria Isabel Vázquez

  299-303
• In vitro embryo production in beef cattle, under dry tropical conditions: effect of breed

  Francisco Javier Trejo Meza, Hilario Del Angel Reyes, Juan Rosales Hilario, Yuridia Bautista Martínez, Miguel Ruíz Albarrán, Arnoldo González-Reyna

  61-65
• Artificial insemination and fixed-time embryo transfer in beef cattle under dry tropical conditions

  Jorge Luis Flores Rodríguez, Francisco Javier Trejo Meza, Hilario Del Angel Reyes, Juan Rosales Hilario, Libia Ivonne Pérez Torres, Hugo Brígido Barrios García, Arnoldo González-Reyna

  51-56
• Effect of eCG on in vitro embryo production in beef cattle in the dry tropics

  Lizeth Montserrat Medina Pérez, Francisco Javier Gutiérrez Piña, Francisco Javier Trejo Meza, Alejandro Espinoza Canales, Alberto Muro Reyes, Arnoldo González-Reyna

  67-72
• Reproduction biotechnology in beef cattle and its application in Northeast Mexico: follicular aspiration and in vitro fertilization

  Francisco Javier Trejo Meza, Juliano Franco De Souza, Juan Rosales Hilario, Hilario Del Angel Reyes, Aime Rodríguez Perales, Froylan Andrés Lucero Magaña, Arnoldo González-Reyna

  383-388
• Fertility and prolificacy of sheep synchronized with Fluorogestone Acetate

  Maximino Méndez Mendoza , Néstor Méndez Palacios, Alejandro Córdova Izquierdo

  29-34
• Effect of climate on superovulatory response, quality and stage of embryonic development in tropical cattle.

  Javier Hernández Ignacio, Rodrigo González Gómez, Itzayana Mejia Flores

  57-60
• Evaluation of two commercial media used in semen cryopreservation on the motility and viability of reparo bulls.

  Itzayana Flores, Natalia Chiquete-Félix, Javier Hernández Ignacio, Diana Laura Rangel Ramírez

  39-43
• Effect of reduced glutathione (GSH) on the sperm quality of verraco under subhumid tropic conditions

  Nancy Patricia Abrego-Salgado, Jose Herrera-Camacho, Efren Estrada-Paqui, Juan Carlos Tinoco-Magaña, Miguel Ángel Bautista Hernandez

  73-79
• Synchronization of estrus in multiparous ewes with CIDR of first, second and third reuse

  Susana López-García, María Teresa Sánchez-Torres Esqueda, José Luis Cordero-Mora, José Luis Figueroa-Velasco, José Alfredo Martínez-Aispuro, Teódulo Salinas Ríos

  21-27
• Inclusion of polyunsaturated fatty acids in the diet for superovulated hair sheep

  Guadalupe Adilia Delgado Tiburcio, Cesar Cortez-Romero, Arturo Pro-Martínez, José Antonio Hernández-Marín, Jaime Gallegos-Sánchez

  15-20
• Proposal to rescue the Criollo Limonero breed in Venezuela

  Omar Araujo-Febres

  363-367
• Characteristics of follicular wave development in prepubertal Bos taurus indicus heifers of two different body sizes

  Jorge Padilla Lopez, Carlos Hernandez Lopez, René Calderon Chagoya, René Carlos Calderon Robles, Ruben Santos Echeverria, Ángel Rios Utrera

  45-50
• Characterization of sexual behavior in hair rams subjected to two controlled matings during the reproductive season

  Keyla Mauleón Tolentin, Fernando Sanchez Davila, Cecilia Zapata Campos, Carlos Luna Palomera, Jose F. Vásquez Armijo, Jurai Grizelj

  9-13
• Effect of extender on sperm quality of refrigerated ovine semen

  Alejandro Córdova Izquierdo, Abel Edmundo Villa Mancera, Armando Gómez Vázquez, Carlos Bedolla Cedeño, Jaime Olivares Pérez, Pedro Sánchez Aparicio, María de Lourdes Juárez Mosqueda, Raúl Sánchez Sánchez

  5-7
• Vaginally use of iButton loggers to measure body temperature in grazing red deer (Cervus elaphus)

  Lorenzo Alvarez Ramirez, Gabriela Arteaga-Salazar, Alejandra Sánchez-Cervantes

  187-194
• Effect of L-carnitine and melatonin on cryosurvival and fertility of spermatozoa of creole roosters (Gallus gallus domesticus)

  Diego Andrés Galarza Lucero, Luis M. Guachichullca, Juan P. Hernández

  107-110
• Royal jelly supplementation to freezing and vitrification media improves cryosurvival of bull spermatozoa

  Luis Galarza-Álvarez, Jacqueline Guanga, Juan Lucero, Xavier Samaniego, Diego Andrés Galarza Lucero

  87-89
• Uterine inflammation of the postpartum cow. Easier said than done...

  Roberto Palomares

  31-49
• Artificial insemination strategies in cattle: From the conventional to the use of sexed semen

  Armando Quintero

  21-30
• Fertility evaluation of pelibuey ewes under three levels of equine chorionic gonadotropin (eCG) aplication using two synchronization protocols

  Miguel A. Gastelum Delgado

  119-121
• Sexual development in taurine, indicus and crossbred F1 bulls in Brazil

  Gustavo E. Freneau, Jose Domingos Guimarães, Vicente Ribeiro Vale Filho

  171-186
• Comparison of two doses of FSHp in superovulation of Pelibuey ewes

  Juan C. Alvarado, Daniel E. Argudo, Andrés L. Moscoso, Hugo J. Hernández-Fonseca , Fernando P. Perea, José. M. Rodríguez

  99-101
• Pregnancy survival in Holstein cows associated with parity and biotype in Uruguay

  Juan P. Garzón , Waldemir Santiago Neto, Victoria Urioste, Marcelo Pla, Eduardo Vidal, Santiago Fariña, Gustavo D.A. Gastal

  83-86
• Seminal evaluation of rabbits subjected to a continuous lighting program

  Daniel Ernesto Argudo Garzon, Alexandra Eras, Juan C. Alvarado, Andrés L. Moscoso, Dina. M. Veloz

  103-105
• First service conception rate in cows resulting from alternating crossbreeding between Brahman Red and Holstein Red according to breed predominance, generation (dams and daughters), and calving season

  Fernando Pedro Perea Ganchou, Eleazar Soto-Belloso, Daniel A. Perdomo, Mariana S. Perea, Roberto A. Palomares, Juan C. Gutiérrez, Hugo Hernández-Fonseca

  79-82
• Evaluation of a simplified protocol of superovulation in Holstein cows in production with sexed and conventional semen

  Daniel Ernesto Argudo Garzon, Luis M. Sánchez , Joselyn E. Chauca, Juan C. Alvarado, Andrés L. Moscoso, Carlos A. Soria

  75-77
• Effect of the energy level of the diet in the last third of gestation on the productive and reproductive performance of beef cows and their offspring. Nutrición preparto y desempeño de la vaca y su descendencia

  Carlos Batista, José Ignacio Velazco, Graciela Quintans

  331-329
• Animal Reproduction

  Managing Editor
• Improved recovery of frozen-thawed bovine spermatozoa selected via standardized swim-up technique

  Juan R. Correa, Panayota N. Zarmakoupis-Zavos , Panayiotis M. Zavos

  101-112
• Embryonic signals and placental hormones: molecular bases and potential use for the diagnosis and followup of gestation in farm animals

  Andrea Alvarez-Oxiley

  155-178
• Modelling the reproductive performance of tropical beef cattle using long-term grazing experimental data on Urochloa humidicola pastures in the Llanos of Colombia

  Raul R. Vera, Carlos Alberto Ramírez-Restrepo

  225-237
• Reproduction and milk yield of Holstein cows in the US Virgin Islands as influenced by time of year and coat color

  Robert W. Godfrey , Peter J. Hansen

  31-44
• Productivity of the sow: Factors Affecting Litter Size

  Hugo Juan Petrocelli, Roberto Bauza, Jorge Sánchez

  147-159
• Synchronization with two doses of PGF2α in dry Hereford cows and Hereford and Holstein heifers

  Juan B. Rodriguez Blanquet, H. Chiarino

  9-14
• Scrotal circumference and body measurements of Hereford and Braford bulls from Northeastern Argentina

  Natalia Mercedes Vallejos, Araceli Rocio Marisel Gonzalez, Gustavo Angel Crudeli, José Luis Konrad, Celia Raquel Quirino

  215-223
• Evaluation of body and testicular measurements in Dorper sheep at different ages

  Thaís Fitaroni Lacerda, Carolina Freitas Rosa e Paula , Natalia Mercedes Vallejos, Celia Raquel Quirino

  205-213
• Probability of pregnancy before ninety days postpartum in water buffaloes

  Hector Nava-Trujillo, Robert Valeris-Chacin, Adriana Morgado-Osorio, Javier Hernández, Janeth Caamaño, Armando Quintero Moreno

  29-34
• The duration of treatment with intravaginal sponges impregnated with medroxyprogesterone in the reproductive season influences the response to oestrus synchronization in Corriedale and Merino ewes

  Raquel Pérez Clariget, Carlos López Mazz, María Belén López Pérez, Álvaro López Pérez

  29-36
• Reproductive characterization of the Criollo-Neuquino goat breed

  Marcela Cueto, María Rosa Lanari, Paula Silvestre, Maria Macarena Bruno-Galarraga, Jimena Fernández, Alejandro Gibbons

  199-214
• The Slick Holstein as an alternative to cope with heat stress in tropical dairy operations

  Bianca Ortiz-Uriarte, Natalia Rosa-Padilla, Rafael López-López, Jaime Curbelo-Rodríguez, Verónica Negrón-Pérez, Guillermo Ortiz-Colón

  145-153
• Current status of the Animal Germplasm Bank in Colombia: organization and management

  Hugo R. Jimenez, Diego H Bejarano, Jose Henry Velazquez Penagos, Eliana Neira Rivera, Luisa A. Rugeles Barandica, Carolina Gonzalez Almario

  151-162
• Quality and in vitro fertility of Uruguayan Criollo bulls’ semen cryopreserved in two commercial diluents

  Yael Filipiak, Eileen Armstrong, Rafael Aragunde, Danilo Fila, Jorge Alvaro Gil Laureiro, Valentina Alvarez, Marcos Pereira, Juan C. Boggio, Clara Larocca, Fernando Vila, María Silvia Llambi Dellacasa

  133-143
• Evaluation of an outdoor production system: 1. Sow performance until birth.

  Hugo Petrocelli, Cecilia Carballo, Nelson Barlocco

  47-57
• Effect of two energy levels during the last third of gestation of beef cows on characteristics of the placenta and offspring at birth.

  Carlos Batista, José Ignacio Velazco, Fernando Baldi, Georgget Banchero, Graciela Quintans

  9-18
• Calving at the beginning or end of winter in nulliparous ewes: effects on maternal behavior and that of their progeny

  Raquel Pérez Clariget, María Soledad Orcasberro

  29-38
• Reproduction, Physiology and Genetics/Reproducción, Fisiología y Genética/Reprodução, Fisiologia e Genética

  Managing Editor
• Reproduction, Physiology and Genetics

  Managing Editor
• Histological characterization of the utero-placental membranes of alpaca

  Luis Olivera Marocho
• Reproductive biotechnologies in domestic South American camelids: advances and perspectives

  Wilfredo Huanca, Aída Cordero, Teodosio Huanca Manami, Gregg P. Adams
• INIA's experience in strengthening the domestic camelid germplasm bank

  Teodosio Huanca Mamani, N Apaza, Mario Lino Gonzales Castillo
• Nutritional strategies to improve reproductive performance in beef cows

  Raquel Perez Clariget, Mariana Carriquiry, Pablo Soca
• In vitro fertilization: alternative for genetic improvement in cattle

  P. G. Herradón, L. A. Quintela, J. J. Becerra, S. Ruibal, M. Fernandez
• Application of the bovine model for the study of ovarian function in other species

  Gregg P. Adams
• Reproductive records of two rabbit farms in the Tuxtepec-Oaxaca region, Mexico

  Alfredo Trejo Cordova, Demetrio Alonso Ambriz García, Sergio Ramirez Ordoñez, Víctor Manuel Meza Villalvazo

  21-26
• Management of reproductive seasonality in small ruminants

  Rodolfo Ungerfeld
• Animal reproduction and physiology/Reproducción y Fisiología/Reprodução e Fisiologia

  Managing Editor
• Environmental factors and sexual development of rams and goats

  Rodolfo Ungerfeld
• Implicancias del Test de Endósmosis en la evaluación del semen de carnero preservado en condiciones de campo

  Melina Castillo, Dante Alberto Cerutti, María Bettina Gómez, Humberto Cisale
• Seminal plasma levels added to a Tris-based diluent for refrigerated sheep semen: results of the hyposmosis test and pregnancy rate

  H. Bueno-Larroque, Raquel Perez Clariget, Alvaro Lopez
• Reproducción animal - Carteles

  Managing Editor
• Reproducción animal - Orales

  Managing Editor
• Effects of heat stress on milk yield of primiparous Holstein cows at regional scale using large data bases

  Gabriela Silvia Cruz, Jorge I. Urioste, Celmira G. Saravia
• Addition of reduced glutathione to diluent of lamb semen during storage (5 °C)

  Alfredo Trejo Cordova, Sergio Ramírez Ordoñes, Víctor Manuel Meza-Villalvazo, Ismael Abad Benítez
• Managing reproductive seasonality in small ruminants

  Rodolfo Ungerfeld
• Luteotrophic effect of OIF/NGF in llamas

  Marcelo Ratto Fuster
• Trabajos Cortos: Reproducción

  Assistant Editor
• Programación fetal en el cordero: efecto de la restricción en la nutrición intrauterina

  Raquel Perez Clariget, Maria Jose Abud, Javier Ithurralde, Patricia Genovese, Andrea Alvarez Oxiley, Victoria Riaño, Maximiliano Torres, Sebastián Montaldo, Sergio Ramírez, Álvaro López, Alejandro Bielli
• Comparison of two methods of progesterone application in a fixed time artificial insemination protocol in beef cows

  Alfredo Irazábal, Raquel Pérez Clariget, Carmen de Olarte, Guillermo de Nava, Daniel Cavestany
• Control of estrus in Bos indicus cattle under tropical conditions. Effect of utilization of Norgestomet combined with estrogens

  Antonio Ismael Porras Almeraya, Carlos S. Galina Hidalgo, Luis Alberto Zarco Quintero

  175-185
• Descriptive characteristics of estrus in dairy cows during winter and summer in Puerto Rico

  C. J. Gonzalez, John Fernandez, Ernesto Riquelme Villagrán, Esteban Burguete Hernandez

  163-174
• Reproductive performance of rabbit does fed diets based on Leucaena leucocephala

  Ana T. Rivera, Ernesto Riquelme Villagrán, John Fernandez

  147-161
• Combined use of tail-paint and prostaglandin in cyclic dairy cows: proposal to maximize efficiency and accuracy in heat detection

  Alberto Raúl Dick
• Valuation of asymmetric IgG antibodies in swine serum and placental extracts

  Adriana del Carmen Garro, Maria Teresa Gentile, Mirta Adriana Koncurat
• 

  Localization of progesterone receptor isoform A in the uterus of non- pregnant sows and maternal placenta during early gestation

  María del Carmen Viglierchio, Sara Inés Williams, Mónica Graciela García, Daniel Vicente Lacolla, Vanina Nerea Murcia, Graciela Noemí Yaful
• Conservation of ram semen at 5 ºC using medium supplemented with 0.5, 1.0 and 5.0 mM of reduced glutathione

  Alfredo Trejo Cordova, Ismael Abad Benítez, Víctor Manuel Meza Villalvazo, Carolina Antonia Estrada, Abel Villa Mancera
• Detection of fibronectin during porcine placentation

  Carolina Lucía Vélez, Delia Williamson, Mirta Koncurat
• Reproductive efficiency in wool sheep artificially inseminated by the cervical or intrauterine method with fresh semen

  Nicacia Hernández Hernández, Juan Carlos Martínez González, Martín Antonio Ibarra Hinojosa, Florencio Briones Encinia, Panfilo Saldaña Campos
• Metabolites in the cervical mucus of dual purpose cows in natural and induced estrus

  Juan Carlos Martínez Gonzalez, Pedro Azuara-Bautista, Froylán Andrés Lucero-Magaña, Sonia Patricia Castillo-Rodríguez, Arnoldo González-Reyna
• Embryonic development of Angel fish (Pterophyllum scalare)

  Marcella Costa Radael, Manuel Vazquez Vidal Junior, Luis David Solis Murgas, Douglas da Cruz Mattos, Leonardo Demier Cardoso, Jonas Henrique de Souza Motta, Matheus Abreu, Viviane de Oliveira Felizardo, Dalcio Ricardo Andrade
• Clinical evaluation of the puerperium of primiparous Nelore cows

  Danila Fernanda Rodrigues Frias, Diego Rodrigues Pereira, Hélio Muniz Simon, Dora Inés Kozusny-Andreani
• Reproductive biotechnologies in domestic South American camelids as alternatives for genetic improvement

  Wilfredo Huanca Lopez
• Alternatives to improve the reproductive performance of crossbred cattle (Bos taurus x Bos indicus)

  Wilfredo Huanca
• Effects of time of parturition, shearing and flushing on lambing to estrus interval in Polwarth ewes.

  F. Ebling Rodrigues, Luis Carlos de Oliveira Fernandes

  17-21
• Laparoscopic intrauterine insemination of frozen sheep semen in a gel solvent based on the Aloe vera plant

  Fernando Rodríguez, John N Stellflug, Jim A. Fitzgerald

  9-15
• The challenges in reproductive management of South American camelids

  Wilfredo Huanca
• Evaluation of llama sperm chromatin preserved using different methods of conservation

  María Ignacia Carretero
• Energy feeding strategies to shorten the postpartum anoestrous in grazing dairy cows

  Alejandro Mendoza, Daniel Cavestany, A. La Manna, Pablo Chilibroste, A. Meikle
• Reproduccion Animal

  Editor Index
• Sperm reservoir in the oviduct of llama and progress in the study of the proteolytic systems involved

  Silvana Andrea Apichela
• Effects of two space allowances on cortisol levels, agonistic behavior and their relationship with the ovarian cycle of the collared peccary (Pecari tajacu) in captivity

  Ruben Cornelio Montes-Perez, Lourdes Kuri Melo, José Mukul Yerves, José C. Segura-Correa, Fernando G. Centurión Castro
• Technical note: Productive variables of Pelibuey lambs and ewes induced to estrus with exogenous hormones and with different types of suckling

  Francisco Javier Franco Guerra, Jorge Ezequiel Hernandez, Oscar Agustin Villareal Espinobarros, Carlos Quiroz Ruiz, Jaime Gallegos Sanchez, Julio Cesar Camacho-Ronquillo
• Duration of estrus and preovulatory surge of LH in Boer x Nubian goats synchronized with various hormones in tropical latitude of Mexico

  José del Carmen Rodríguez-Castillo, Arturo Pro-Martínez, Arnulfo Villanueva-C., Jaime Gallegos-Sánchez
• Factors affecting reproductive response in anestrous crossbred cows treated with intravaginal progesterone or calf removal for 120 hours

  Fernando Pedro Perea Ganchou, Roberto Palomares Naveda, Aitor De Ondiz, Hugo Hernández Fonseca, Doraida Díaz, Rumualdo González, Germán Portillo, Eleazar Soto Belloso
• Caracteristicas reproductivas de ovejas Pelibuey sincronizadas e inducidas a la pubertad

  Julio Cesar Camacho Ronquillo, Jose del Carmen Rodríguez Castillo, Jorge Ezequiel Hernandez Hernandez, Arturo Pro Martinez, Carlos Miguel Becerril Perez, Jaime Gallegos Sanchez
• Relationship between productive and reproductive parameters of dairy cows in different production systems

  Elbio Joaquín Dutour Pérez, L. M. Melucci
• Efeito da Idade e de Fazenda Sobre as Características Seminais e Perímetro Escrotal em Touros da Raça Guzerá Criados no Norte e Noroeste do Rio de Janeiro/Brasil*

  Aline Pacheco, Celia Raquel Quirino, José Frederico Straggiotti Silva, Isabel Candia Nunes da Cunha, Carlos Henrique Bucher
• Accuracy of transrectal ultrasonography for evaluation of corpora lutea in hair sheep

  Ignacio Contreras-Solís, Thaís Díaz, Gustavo López, Allan Caigua, Herakles García, Alejandro Salvador, Antonio González-Bulnes
• Deterministic and stochastic models to embryo transfer programs in bovine

  Luis Gustavo Barioni, Renato Travassos Beltrame, Celia Raquel Quirino, Danieli Rankel Fernandes
• Effect o energy levels in diets of constant energy: protein ratio on performance, metabolism and thyroid hormones of broilers

  Otto Mack Junqueira, Nadja Susano Mogyca Leandro, Marcos Macari, Lucio Francelino Araujo, Cristiane Soares da Silva Araujo
• Milk production with oxytocin in dual purpose cows under Mexican humid tropic conditions

  Carlos Luna Palomera, José Alejandro Ramírez Godínez, Felipe Alonso Rodríguez Almeida, Jaime Gutiérrez Alderete
• Animal physiology and reproduction abstracts

  Managing Editor
• Is the conservation of goat semen at -150°C a viable alternative?

  A. Medrano, F. Cabrera, F. Gonzalez, M. Batista, E. Quesada, P. Calero, A. Gracia
• GM 21. Early chromosomal diagnosis and reproductive management as tool to enhance production in bovines

  Oscar Vera, Pedro Bastidas, Gladys Muñoz
• GM 04. Scrotal measurements, weight, and semen quality in Nellore bulls

  Jose Aurelio Bergmann, Celia Raquel Quirino, V. R. Vale Filho,, V. J. Andrade, C. G. Fonseca
• Introduction to breeding in crossbred dual purpose heifers

  Carlos Gonzalez-Stagnaro, Javier Goicochea Llaque, María Alejandra Rodríguez-Urbina, Ninoska Madrid Bury, Decio González Villalobos
• FR 49. Nelore bulls evaluation submits to open testicular biopsy by the breeding soundness examination (ICAP) evolution

  Gustavo E. Freneau, J. D. Guimaraes, V. R. Vale Filho
• FR 48. Comparison of Fulton and alometric condition factors in curimbata (Prochilodus lineatus) raised in two environments

  Marco Antonio da Rocha, Edson Luis de Azambuja Ribeiro, Ivone Yurika Mizubuti
• FR 47. Chinchilla (Chinchilla lanigera) body growth in a commercial production, province of Buenos Aires. Argentina

  M. Alvarez, Hector Quintana, G. Mallo, M. E. Quinn
• FR 46. Seminiferous tubule wide diminished in testicles of turkeys (Meleagris gallopavo) fed furazolidone in their diets. Preliminar findings

  Maria Fernanda Peralta, Adriana Vivas, R. D. Miazzo, S. Ferrero
• FR 45. Early pregnancy factor: its characterization and purification from pregnant and PAF intrauterine administrated - pseudopregnant swine serum

  A. Vivas, Cristina Nowicki, R. Rovere, M. Sereno
• FR 44. Evaluation of two freezing boar semen techniques. Preliminary results of a fertility trial

  V. C. Wevar, M. E. Torreta, O. Forchetti
• FR 43. Postweaning growth in West African sheep

  Cesar Zambrano
• FR 42. Preweaning growth in West African sheep

  Cesar Zambrano
• FR 41. Intensive production of « Martinik » hair sheep at grazing in Martinique (F.W.I.)

  G. Aumont, M. Mahieu, Gisèle Alexandre
• FR 40. Preliminary results on factors affecting lambing intervals of ewes in tropical conditions

  Leyla Rios, Zoraida Rondon, Omar Verde, Josefina de Combellas
• FR 39. Serving capacity in young rams: repeatability of an evaluation test

  J. Olivera, A. Ferraris, Elize Thera van Lier, Juan Burgueño, A. Lopez
• FR 38. Influence of west-african lambs weight at birth on the mortality and growth rate

  Armando Quintero, Julio Boscan, A. Gonzalez, Roberto Palomares, J. Boissiere, J. Boissiere
• FR 37. Effects of type of lambing on the body weight to differents ages in west-african lambs breds under very dry tropic conditions

  Armando Quintero, Julio Boscan, Roberto Palomares, A. Gonzalez, J. Boissiere
• FR 36. Effects of sex on the body weight to differents ages in west-african lambs breds in venezuelan tropic

  Armando Quintero, Julio Boscan, Roberto Palomares, A. Gonzalez, J. Boissiere
• FR 35. Environmental factors effect on seasonality of calving in bufaloes

  Nestor Montiel, Nidia Rojas, Francisco Angulo, Adirmo Rafael Hernandez Fernandez, J. Zuleta, N. Cahuao, I. Torres
• FR 34. Environmental and fisiological factors effects on empty period – calving interval and lenght of gestation in bufaloes

  Nestor Montiel, Nidia Rojas, Francisco Angulo, Adirmo Rafael Hernandez Fernandez, J. Zuleta, N. Cahuao, I. Torres
• FR 33 Preliminary analysis of lactation curves in water buffaloes (Bubalus bubalis) in southern region of Táchira State

  Omar Alfredo Colmenares, H. Cermeño
• FR 32. In vitro heterologous fertilization of buffalo oocytes

  Pedro Bastidas, Adriana Fernandez, Juan Troconiz
• FR 31. ELISA vs RIA techniques comparation in the plasmatic progesterone determination in Bovines

  Noris Roa, Tiburcio Linares, Morella de Rolo, Rita Tamasaukas
• FR 30. Reproductive response of crossbred heifers (Bos indicus x Bos taurus) used as bovine embryo recipient in venezuelan tropic. II. Heifers recipient selection

  Noris Roa, Tiburcio Linares, Diego Barrios, Rita Tamasaukas, Morella de Rolo
• FR 29. Reproductive response of crossbred heifers (Bos indicus x Bos taurus) used as bovine embryo recipient in Venezuelan tropic. I. Racial type

  Noris Roa, Tiburcio Linares, Diego Barrios, Rita Tamasaukas, Morella de Rolo
• FR 28. Productive and reproductive survey in a ranch in flooded savannas ecosystem

  D. Ocanto, Rafael Aparicio, Cesar Labrador, Omar Colmenares
• FR 27. Milk production: responses to high temperature

  S. E. Valtorta, Perla Leva, M. R. Gallardo, L. V. Fornasero, M. A. Veles, M. S. Garcia
• FR 26. Feed suplementation with diets based on local resources in postcalving dual purpose cows Guárico state highlands, Venezuela. II. Effect on the reproduction performance

  Carlos Dominguez, Adrian Gonzalez, Jose A. Ureña, Karel Zahalka
• FR 25. Zebu females fertility artificial insemination after hormonal implant application

  S. A. Esperón, B. B. Lopez, Enrique Silva Peña, Miguel A. Galina, M. A. Carmona, L. G. Gonzalez
• FR 24. Effect of bull exposure on corpus luteum function and ovarian activity in prepuberal Brahman heifers

  Pedro Bastidas, Julio Ruiz, Magaly Manzo, Oswaldo Silva, Nora Guerrero, Juan Troconiz
• FR 23. Effect of uterine and ovarian massage on postpartum first oestrus and open days in creole limonero cows

  Adirmo Rafael Hernandez Fernandez, Nidia J. Rojas
• FR 22. Comparison of three methods for the synchronization of oestrus cycles using prostaglandin F2a in dry multiparous cows and heifers

  Juan B. Rodriguez Blanquet, Juan Burgueño, Carlos Jaime Mas, Fernando Pereyra
• FR 21. Estrus sinchronization and fertility in crossbred cows and heifers treated with one dose of PGF2a or its analogous.

  Robert Cruz, Eleazar Soto Belloso, Jose A. Aranguren-Mendez, M. Garcia, C. de la Hoz
• FR 20. Fourty five day breeding season. IV: Fisical and economical productivity

  Darío Montoni, Jose Rigoberto Vivas, Genaro Rojas, Jairo Parra, Milena Mago
• FR 19. Fourty five day breeding season. III: Calf growth

  Darío Montoni, Jose Rigoberto Vivas, Genaro Rojas, Jairo Parra, Milena Mago
• FR 18. Fourty five day breeding season. II: Reproductive performance of first-calf cows

  Darío Montoni, Jose Rigoberto Vitto, Genaro Rojas, Jairo Parra, Milena Mago
• FR 17. Production and transfer of frozen bovine embryos from criollo limonero catlle

  Romualdo Gonzalez, J. C. Velarde, Sunny Zambrano, P. Esté
• FR 16. Ultrasonographic evaluation of the cervical involution in tropical crossbred dairy cows

  Fernando Pedro Perea Ganchou, Roberto Cruz, R. Gonzalez, Eleazar Soto Belloso, Carlos Gonzalez-Stagnaro, Edmundo Rincon
• FR 15. Biological feasibility of establishing calving seasons in dual purpose herds

  Eva Romero, Omar Verde, Lucía Vaccaro, Rodolfo Vaccaro
• Duration of postpartum anestrus in ewes of the Mexican high plateau

  J. del C. Rodriguez-Castillo, Miguel Garcia-Winder, Arturo Pro-Martínez, J. Gallegos-Sanchez
• Productive and reproductive performance of dual-purpose cows in two systems of suckling in the tropics

  P. Perez, F. Solaris, Miguel Garcia-Winder, M. Osorio-Arce, J. Gallegos-Sanchez
• FR 12. Semen quality of Aberdeen Angus and Ibagé bulls submitted to experimental testicular degeneration

  M. M. Horn, J. C. Moraes, Carlos S. Galina
• FR 14. Effects of 14 days calf removal and/or bull exposure upon productive and reproductive perfomance in Hereford cows. Preliminar analysis (Two years)

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• FR 13. Effect of ninety six-hour calf removal on estrus induction and fertility in crossbred aciclic cows

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• FR 11. Evaluation of bovine semen frozen in french straws after 10 expositions to environment

  M. M. Horn, A. S. Costa, J. C. Moraes
• FR 10. Reproductive characteristics of breeding Brown Swiss x Zebu bulls in Venezuela

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• FR 09. Postpuberal comparative evaluation of 5/8 Bos taurus crossbreed young bulls. 2. Reproductive performance

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• FR 08. Postpuberal comparative evaluation of 5/8 Bos taurus crosbreed young bulls. 1. Productive performance

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• Induction of ovulation of the first dominant follicle in postpartum beef cows

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  93-102
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• FR 07. Reproductive performance of three swine breeding systems in Uruguay

  Hugo Petrocelli, Juan Burgueño
• FR 05. Field reproductive potential evaluation of Brahman bulls

  Pedro Bastidas, O. Silva, N. Guerrero, J. Troconiz
• FR 04. Urea concentration in milk and reproduction in dairy cows under grazing conditions

  A. Charmandarian, M. L. Gomez, R. Figallo, P. R. Marini, A. R. Castillo
• FR 03. Effect of birth season and bST on growth rate in Holstein heifers

  A. Garcia, D. Feitsma, M. J. Hayen, L. L Cline, H. H. Head, C. J. Wilcox
• FR 02. Forty five days breeding season. I: Reproductive performance of heifers

  Dario Montoni, J. R. Vitto, G. Rojas, J. Parra, Milena M. de Montoni
• FR 01. In vitro fertilization of oocytes colected postmortem from zebu cows

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• Persistency in lactation – a review

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