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Journals / Turkish Journal of Veterinary and Animal Sciences / 2017 / Cilt: 41 - Sayı: 6

Effect of dosage and duration of altrenogest treatment on follicular development and ovulation in sows

Supatee KITKHA
Alongkot BOONSOONGNERN
Nattavut RATANAVANICHROJN
Pichai JIRAWATTANAPONG
Anuchai PINYOPUMMIN
Pages
733–740
Publication Date
2017-12-20
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

ALT improved follicular growth and the homogeneity of FS without affecting ovulation.

📌 3 Key Takeaways

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Objective & Hypothesis:The aim of this study was to investigate the effect of altrenogest (ALT) treatment on follicular development and ovulation in sows.
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Key Findings & Data:Sows (parity 6-9; D0: weaning day) were assigned to four treatments as follows: control (no ALT treatment; n = 20), ALT-4-0 (ALT 20 mg/day, 5 days; D-4-D0; n = 20), ALT-4-2 (ALT 20 mg/day, 7 days; D-4-D2; n = 23), and 2ALT-4-2 (ALT 20 mg twice a day [40 mg/day], 7 days; D-4-D2; n = 24).
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Conclusion & Impact:ALT improved follicular growth and the homogeneity of FS without affecting ovulation.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Altrenogest · follicular development · ovulation

Abstract

The aim of this study was to investigate the effect of altrenogest (ALT) treatment on follicular development and ovulation in sows. Sows (parity 6-9; D0: weaning day) were assigned to four treatments as follows: control (no ALT treatment; n = 20), ALT-4-0 (ALT 20 mg/day, 5 days; D-4-D0; n = 20), ALT-4-2 (ALT 20 mg/day, 7 days; D-4-D2; n = 23), and 2ALT-4-2 (ALT 20 mg twice a day [40 mg/day], 7 days; D-4-D2; n = 24). The sows in each group were further divided into three groups based on slaughter periods: day 1 (DF1) and day 4 (DF4) of the follicular phase, and after the initiation of estrus. The number of follicles was reduced on DF4 compared to DF1 (P < 0.001). On DF1, follicular size (FS) of the control was larger than that of ALT-4-0, ALT-4-2, and 2ALT-4-2, but on DF4, FS of ALT-4-2 and 2ALT-4-2 was larger than that of the control and ALT-4-0 (P < 0.001). The coefficient of variation of FS on DF4 was smaller in ALT-4-2 compared to the control and 2ALT-4-2 (P < 0.05). Ovulation rate was similar between groups (P - 0.05). ALT improved follicular growth and the homogeneity of FS without affecting ovulation.

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Cite This Article

KITKHA, S., BOONSOONGNERN, A., RATANAVANICHROJN, N., JIRAWATTANAPONG, P., PINYOPUMMIN, A. (2017). Effect of dosage and duration of altrenogest treatment on follicular development and ovulation in sows. Turkish Journal of Veterinary and Animal Sciences, Cilt: 41 - Sayı: 6, 733–740. https://ajindex.com/articles/122489

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