Skip to main content

Table 1 Mean (±SEM) time to estrus and superovulatory response in six hinds of the species Mazama gouazoubira submitted to two different hormonal treatments

From: Comparing two different superovulation protocols on ovarian activity and fecal glucocorticoid levels in the brown brocket deer (Mazama gouazoubira)

  Treatments P value
  eCG FSH  
Number of hinds treated per treatment 6 6  
Hinds exhibiting estrus behavior 3/6 3/6 NS
Period between removal of the progesterone device and the onset of estrus (h) (range) 40.0 ± 8.0 (24–48) 92.0 ± 22.0 (48–120) NS
Duration of estrus (h) (range) 40.0 ± 4.0 (36–48) 36.0 ± 6.9 (24–48) NS
Synchrony a (h) 24 72  
Superovulating hinds 4/6 4/6 NS
No. of corpora lutea (range) 7.0 ± 1.8a* (2–10) 2.6 ± 0.8b* (1–6) 0.04
No. of corpora lutea in the right ovary (range) 4.2 ± 1.2* (1–7) 1.0 ± 0.3* (0–2) NS
No. of corpora lutea in the left ovary (range) 2.7 ± 0.8* (0–5) 1.6 ± 0.8* (0–2) NS
No. of anovulatory follicles (range) 4.5 ± 1.7* (0–7) 7.6 ± 0.9* (6–11) NS
Total follicular stimulus b (range) 11.5 ± 2.5* (6–17) 10.2 ± 1.1* (7–13) NS
Hinds with early regression of corpora lutea 4/6 2/6 NS
  1. eCG Treatment, CIDR® for 8 days + BE D0 + 700UI eCG D4 + cloprostenol D8; and FSH Treatment, CIDR® for 7.5 days + BE D0 + 130 mg FSH D4.5/D8 + cloprostenol D7.5.
  2. aPeriod between the first and last hind to exhibit estrus behavior under each treatment.
  3. bSum of the number of corpora lutea and the number of anovulatory follicles.
  4. *Mean ± SEM, excluding data from hinds 3 and 5 in eCG Treatment and hind 3 in FSH Treatment due to repetition of estrus behavior prior to laparoscopic examination.
  5. NS: P ≥ 0:05; Values with different letters (a and b) along the lines differ (P < 0:05) according to the Student t test.