Zobrazeno 1 - 8
of 8
pro vyhledávání: '"José C. Segura"'
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 14, Iss 2, Pp 465-471 (2011)
The objective of this study was to determine the molecular pattern of M. bovis isolates from cattle of Northern Mexico and its relationship with some risk factors. Isolates (n=60) were obtained from the states of Coahuila (COA, n=14), Tamaulipas (TAM
Externí odkaz:
https://doaj.org/article/2f44c6e0145a4609a2cb3137f86f14d8
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 14, Iss 1, Pp 119-127 (2010)
Se estimó la aptitud combinatoria general (ACG) y especÃfica (ACE) de dos dialelos formados cada uno con cinco poblaciones de maÃz. El primer dialelo incluyó poblaciones precoces: Nalxoy Blanco, Nalxoy Amarillo, Xmehen-nal de Yaxcabá,
Externí odkaz:
https://doaj.org/article/5d6a881df0054990a834791b3ca3f36b
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 14, Iss 1, Pp 295-299 (2010)
Se evaluó el efecto de la inseminación al primer celo postdestete o la aplicación de gonadotropinas e inseminación al segundo celo en el tamaño de camada de cerdas primerizas. Para ello, se analizaron los datos productivos de 2003 a 20
Externí odkaz:
https://doaj.org/article/4c42a07ae94745c69f134af3d70779f7
Autor:
M.M. Osorio-Arce, José C. Segura
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 12, Iss 3, Pp 463-469 (2010)
The objective of this study was to estimate the breed-direct, breed-maternal and heterosis effects from data obtained for weaning and yearling weights of Brahman and its crosses with Charolais, Simmental, Brown Swiss breeds in a beef herd in Tabasco,
Externí odkaz:
https://doaj.org/article/1c8bfaf29bed45a3b1c5049d787bf849
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 12, Iss 2, Pp 411-416 (2009)
The stayability and causes of culling of boars in four pig commercial farms in Yucatan, Mexico were studied. The get-in and get-out dates of the boars corresponded to the period of March 1994 to June 2007. Stayability was defined as the number of day
Externí odkaz:
https://doaj.org/article/d7c26908257247efa7cba900eda7a4f8
PREVALENCE AND RISK FACTORS ASSOCIATED WITH THE PRRS VIRUS IN SEMEN OF BOARS IN PIG FARMS OF YUCATAN
Autor:
Aremi Jordan-Craviotto, José C. Segura, Alejandro Alzina-López, Jorge Carlos Rodriguez-Buenfil, Sandra Villegas-Perez
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 12, Iss 1, Pp 145-150 (2009)
The objectives of the present study were to estimate the prevalence of and to determine the risk factors associated with the porcine reproductive and respiratory syndrome virus (PRRSV, American strain) in semen of boars in pig herds of Yucatan, Mexic
Externí odkaz:
https://doaj.org/article/4c5822113b9043dc81c7b6129d62dc55
Autor:
Pilar Gómez-Ruiz, Jorge RodrÃguez-Buenfil, Carlos Pérez-Osorio, Alejandro Alzina-López, José C. Segura
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 17, Iss 1 (2014)
El objetivo de este estudio fue describir la dinámica de la respuesta humoral especÃfica y la frecuencia de variantes del virus del PRRS en tres granjas con diferentes estrategias de control. Treinta cerdos en cada granja fueron estudiados. Los
Externí odkaz:
https://doaj.org/article/c7c05b3971da43548f01fba8f851b997
Autor:
José C. Segura, Fernando Centurion-Castro, Juan Orihuela Porcayo, Ricardo J Aké-López, Juan G. Magaña-Monforte, Ruben Cornelio Montes-Perez
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 16, Iss 2 (2013)
The effect of body condition score (BCS) on estrus characteristics and ovarian function was evaluated in 44 synchronized Beef-Master cows. Weaned adult cows in anestrous were grouped according to their BCS as BCS1-2 (n = 13), BCS3-4 (n = 17) and BCS5
Externí odkaz:
https://doaj.org/article/1a6aa692735744f88a9c54af6bfa75d4