Rumen-protected glucose hastens uterine involution and increases numbers of ovarian follicles in early post-partum dairy cows.
Reprod Domest Anim
; 58(4): 511-518, 2023 Apr.
Article
en En
| MEDLINE
| ID: mdl-36645321
ABSTRACT
The primary objectives were to investigate the effects of feeding a new rumen-protected glucose (RPG) on uterine involution and ovarian follicular dynamics in recently calved dairy cattle. From 4 to 30 days after calving, 16 Holsteins (first to third lactation, mean parity 1.75) were randomly assigned to be fed either a basal diet top-dressed with either 600 g RPG (RPG group) or 600 g of the coating material and glucose (CONT group). Based on transrectal ultrasonography, conducted every 3 days starting 20 days after calving, the interval from calving to complete uterine involution was shorter in RPG versus CONT (27.1 vs. 30.4 days, p < .01). Furthermore, based on transrectal ultrasonography conducted every 2 days, cattle fed RPG had smaller (3.0-4.9 mm) ovarian follicles (2.96 vs. 0.9, p < .001) and more total follicles (5.26 vs. 2.85, p < .01). Feeding RPG had increased serum insulin concentrations (4.59 ± 0.54 vs. 3.13 ± 0.57, p < .05), but had no significant effects on serum glucose concentrations, dry matter intake or milk yield. In conclusion, we inferred that cattle fed RPG had increased glucose turnover that was responsible for higher insulin concentrations, faster uterine involution, and more ovarian follicles.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Insulinas
/
Glucosa
Límite:
Animals
/
Pregnancy
Idioma:
En
Revista:
Reprod Domest Anim
Asunto de la revista:
MEDICINA REPRODUTIVA
/
MEDICINA VETERINARIA
Año:
2023
Tipo del documento:
Article
País de afiliación:
Irán