Skip to content
Research Article Open access CC BY 4.0

Effects of Routinely Oxytocin Injection to Induce Milk Ejection on Some Reproductive Parameters of Crossbred Cows in the Tropics of Veracruz

M. A. Lammoglia, B. Domínguez Mancera, M. A. Alarcón, A. Cabrera, A. I. Daniel

Annual Research & Review in Biology · pp. 297–303 · Published 19 Feb 2015

10.9734/ARRB/2015/15902

Abstract

The objective was to assess the effects of routine intramuscular injection ofoxytocin in crossbred milked cows in days to first service (DPS), number of services per conception (SC), percentage of abortions (PA), cumulative percentage of pregnant cows(PAVG) length of the embryo (LE), serum cortisol concentrations and milk production (PL). Cows were milked twice daily and randomly assigned to: (i) Received a routine intramuscular injection of oxytocin (10 IU / milking Injected Group, n=31) or (ii) not receive injection (Control group, n=29). Pregnancy diagnosis and measurement of the embryo was performed by ultrasonography 33(±4) days after artificial insemination. At 152.2±10 days in milk, several blood samples were taken before and after injection of the two groups of cows (Control, n=8 and Injected, n=7). The serum was processed and cortisol concentrations were determined by radioimmunoassay. Statistical analysis was performed using ANOVA and chi-square. The Control cowshad lower (P=0.05) percentage of abortions (3.8%) than Injected cows (PA=23%). The PAVG was higher (P=0.01) in Control group. Embryos from Control cow (19.0±2.0 mm) had greater (P=0.0001) length than those of Injected cows (14.22±1.4 mm). There were no differences (P=0.10) in DPS, SC and PL. Cortisol concentrations were higher (P=0.0003) in Injected cows (33.4±2.8 ng / ml) than Control cows (11.6±2.4 ng/ml) cows. In conclusion, routine intramuscular injection of oxytocin increased serum cortisol concentrations and affected some reproductive profiles; we suggest not using intramuscular injection of oxytocin routinely.

Cortisol oxytocin embryo viability milk ejection

References (21)

  1. 1 Luteolysis: A Neuroendocrine-Mediated Event [DOI]
  2. 2 Physiological and practical effects of progesterone on reproduction in dairy cattle [DOI]
  3. 3 Influence of progesterone on oocyte quality and embryo development in cows [DOI]
  4. 4 Milk removal in familiar and unfamiliar surroundings: concentrations of oxytocin, prolactin, cortisol andβ–endorphin [DOI]
  5. 5 Effect of feeding duration and rumen fill on behaviour in dairy cows [DOI]
  6. 6 Oxytocin and milk removal: two important sources of variation in milk production and milk quality during and between milkings [DOI]
  7. 7 Inhibition of milk ejection in cows by oxytocin receptor blockade, α-adrenergic receptor stimulation and in unfamiliar surroundings [DOI]
  8. 8 Effects of Daily Exogenous Oxytocin on Lactation Milk Yield and Composition [DOI]
  9. 9 Factors affecting embryo survival and strategies to reduce embryonic mortality in cattle [DOI]
  10. 10 Effects of Oxytocin Administration on Oxytocin Release and Milk Ejection [DOI]
  11. 11 Transport of Prostaglandin F2α Pulses from the Uterus to the Ovary at the Time of Luteolysis in Ruminants Is Regulated by Prostaglandin Transporter-Mediated Mechanisms [DOI]
  12. 12 Plasma levels of oxytocin increase in response to suckling and feeding in dogs and sows [DOI]
  13. 13 Effects of administration of oxytocin on embryonic survival in progestogen supplemented cattle [DOI]
  14. 14 Milk yield, oxytocin and β-endorphin gradually normalize during repeated milking in unfamiliar surroundings [DOI]
  15. 15 Oxytocin release and lactation performance in Syrian Shami cattle milked with and without suckling [DOI]
  16. 16 Role of Exogenous Oxytocin in Eliciting Milk Ejection in Dairy Cows [DOI]
  17. 17 Short-term oxytocin treatment increases bovine milk yield by enhancing milk removal without any direct action on mammary metabolism [DOI]
  18. 18 Influence of oxytocin infusion during oestrus and the early luteal phase on progesterone secretion and the establishment of pregnancy in ewes [DOI]
  19. 19 Modification of Bovine Luteal Function by Exogenous Oxytocin and Progesterone [DOI]
  20. 20 Infertility associated with the duration of luteal phase in postpartum cows
  21. 21 Effects of Exogenous Oxytocin on Embryonic Survival in Cows [DOI]

Cited by 10

Behavior and reactivity during milking of Holstein, Gyr and Girolando-F1 cows at the beginning of lactation

S. Stivanin, E. F. Vizzotto, J. Aires · Journal of veterinary behavior · 2024

Music and Tactile Stimuli during Daily Milking Affect the Welfare and Productivity of Dairy Cows

Karine Keyzy Dos Santos Lemes Lechuga, F. R. Caldara, Maria Fernanda de Castro Burbarelli · Animals · 2023

Cow-calf management practices in Mexico in dual-purpose cattle

Arantzatzu Lassala, Miguel Ángel Alonso-Díaz, Manuel Dionisio Corro-Morales · Veterinaria México OA · 2025

Showing 5 of 10 known citations — external sources report more than can currently be individually listed.

Article metrics

Real usage data collected on this platform.

65

Page views

0

PDF downloads

9

Outbound clicks

10

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.