Fecha/hora: 04/06/2024 10:27:07

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	27/09/2022	
Fecha de la última actualización: 	27/09/2022	
Autoria: 	SINCHI, F. I.; ZUIN, J. F.; GARZÓN, J. P.; LÓPEZ, G. E.; CALLE, G. R.; QUITO, F.; GALARZA, D. A.; PEREA, F. P.	
Afiliación: 	FRANKLIN I. SINCHI, Carrera de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca, Ecuador; JENNY F. ZUIN, Carrera de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca, Ecuador; JUAN PABLO GARZÓN PRADO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Inst. Nac. Inv. Agropecuarias, Est.Exp. del Austro, km 12.5 vía Descanso-Gualaceo, Azuay, Ecuador; Centro Latinoamericano de Estudios de Problemáticas Lecheras, Santa Fé, Argentina; GONZALO E. LÓPEZ, Carrera de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca, Ecuador; GUIDO R. CALLE, Centro Veterinario El Tambo, Cañar, Ecuador; FERNANDO QUITO, Libre Ejercicio de la Profesión, Azuay, Cuenca, Ecuador; DIEGO ANDRÉS GALARZA, Carrera de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca, Ecuador; FERNANDO P. PEREA, Carrera de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca, Ecuador; Departamento de Ciencias Agrarias, Universidad de Los Andes, Trujillo, Venezuela.	
Título: 	Addition of clinoptilolite in the diet reduces uterine PMN leukocytes and open days in multiparous lactating dairy cows managed in a mountain tropical pasture-based system.	
Año de publicación: 	2022	
Fuente/Imprenta: 	Tropical Animal Health and Production, 2022, Volume 54, Issue 5, Article 281. doi: https://doi.org/10.1007/s11250-022-03308-2	
ISSN: 	0049-4747	
DOI: 	10.1007/s11250-022-03308-2	
Idioma: 	Inglés	
Notas: 	Article history: Received 17 June 2021; Accepted 31 August 2022; Published online 08 September 2022.
Corresponding author: Perea, F.P.; Carrera de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca, Ecuador; email:fernando.perea@ucuenca.edu.ec  --  Funding: This study was supported by the Vice-Rectorate for Research of the University of Cuenca (VIUC), Ecuador, throughout project DIUC-XIV-2016?022. --	
Contenido: 	ABSTRACT.- This study aimed to assess the effect of adding clinoptilolite in the diet on uterine health and reproductive performance in multiparous lactating dairy cows managed in a tropical pasture-based system above 2500 m of altitude. Seventy-seven multiparous Holstein crossbred cows from two farms were allocated randomly into two groups: clinoptilolite supplemented cows (CLG, n = 42) and non-supplemented cows as control (CG, n = 35). Cows from CLG were supplemented with clinoptilolite from 30 days (50 g/cow/day) before to 60 days after calving (200 g/cow/day). In CLG cows, percentages of uterine PMN leukocytes (P < 0.0001) and proportion of subclinical endometritis (P = 0.0187) were lower than in CG. The interval calving to first corpus luteum was shorter (P = 0.0759) in CLG than CG, and calving to first service interval was similar between treatments. Cows from CLG became pregnant 35 days earlier than CG cows (P = 0.0224). On farm A, calving to conception interval was 18.1 days longer in CLG than in CG (P = 0.3750); in farm B, this interval was 86.2 days shorter in CLG than in CG (P = 0.0002). In conclusion, daily addition of clinoptilolite in the diet decreased the percentage of uterine PMN leukocytes, the proportion of cows with subclinical endometritis, and shortened the calving-conception interval in multiparous lactating dairy cows. © 2022, The Author(s), under exclusive licence to Springer Nature B.V.	
Palabras-Clave: 	Clinoptilolite; Dairy cows; Reproductive performance; Tropic; Uterine PMN leukocytes.	
Categoría del tema: 	L53 Fisiología Animal - Reproducción	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (103181-1) - PXI - AP - DD - Tropical Animal Health & Production/2022 -  -  - DIS