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All Journal Ovozoa: Journal of Animal Reproduction
Oreoluwa Raymond Akinbote
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Agriculture, Biological Sciences & Forestry Veterinary

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Performance of pre-breeding cycle-staging techniques in bitches: Clinical comparability of vaginal cytology and progesterone assay Samuel Ayodele Famakinde; Oluropo Michael Obafemi; Tolulope Adeoye Ajayi; Olufisayo Oluwadamilare Leigh; Oreoluwa Raymond Akinbote; Adedamola O Olanrewaju; Deborah Boluwatife Ola; Oluwaseyi Oladiran Fakorede; Barakat Adedamola Salaudeen; Mutiat Busayo Rabiu
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 1 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i1.2025.1-7

Abstract

Accurate timing of insemination (mating) remains a critical challenge in the reproductive management of bitches. In spite of technical advances in vaginal cytology (VC) and serum-progesterone (SP) assay, the challenges appeared not to have abated. Five clinical scenarios involving VC and SP are presented, aimed at investigating technique-performance and creating more robust awareness on application of SP titers obtained using a fluorescence immunoassay kit having 7.6–20.0 ng/mL as predictable-progesterone-titer-range-for-insemination-(PPTRi). Number of bitches, insemination-readiness-detection-technique(s) (IRDT), score (%) of agreement/disagreement between Insemination-readiness-detection techniques (SABT) for peculiarities of bred bitch(es) (PBB), proportion of bitches that became pregnant confirmed by relaxin assay and, number of pups littered were studied. Results obtained for number of bitches, IRDT, SABT or PBB, relaxin and number of pups littered, respectively were: 22, VC-SP, 81.8%/18.2%, 72.7% and, NA (i.e. not-available) (case I); 2, VC-SP, bitches mated after attaining PPTRi 10 and 13 days after been detected ready-for-mating via VC, 100%, and, 5 and 7, respectively (case II); 1, SP, bitch mated at SP of 4.401 ng/mL, 100% and, 11 (case III); 2, SP, first bitch mated at 4.682 ng/mL and the second at 7.049 ng/mL, 100% and, 9 and 12, respectively (case IV); 1, VC-SP, bitch mated once detected ready-for-mating by VC while SP at 24-hours post-mating was 2.852 ng/ mL, 100% and, 1 (case V). These findings suggest high-level agreement in accuracy of Insemination-readiness-detection between the two techniques, with none reflecting superiority. For better breeding successes, it is recommendable to inseminate earlier, during the peri-ovulation period.
Advocacy for quantitative progesterone assay in the breeding management of bitches Oreoluwa Raymond Akinbote; Adedamola Oluwakayode Olanrewaju; Oluropo Michael Obafemi; Samuel Ayodele Famakinde; Akintomiwa Afolarin Bolaji; Mutiat Busayo Rabiu; Oluwadamilare Olufisayo Leigh
Ovozoa: Journal of Animal Reproduction Vol. 11 No. 3 (2022): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v11i3.2022.98-102

Abstract

Peripheral progesterone titers characterizing the reproductive cycle of the bitch are fairly well-documented in literature. Progesterone titers obtained via fluorescence-immunoassay technique at different points to the appearance-of-bloody-vulva-discharge (ABVD) in apparently healthy, exotic, multi-breed bitches (n = 76) that were subsequently inseminated were summarized using descriptive statistics. The recommended/predictable progesterone titer-ranges- PPTRs (ng/mL) and modality for insemination(s) were: 7.6-8.5 (inseminate-after-24-hours), 8.6-9.9 (inseminate-after-12-hours) and 10.0-20.0 (inseminate-immediately). The length of days from ABVD to the point of obtaining a PPTR (Mean ± SD) was 12.43 ± 3.38 days (range 8-17 days). The frequencies of progesterone assay per bitch were: one-fold (39.47%), two-fold (39.47%). three-fold (18.43%) and four-fold (2.63%). Observations on pregnancy statuses of bitches based on frequency of progesterone assay(s) were: 57.90% (pregnant, multiple-assay), 5.26% (pregnant, one-fold-assay), 26.32% (not-pregnant, multiple-assay) and 10.52% (not-pregnant, single-assay). The litter sizes at the PPTRs (Mean ± SD) i.e., 7.83 ± 1.86 (7.6-8.5 ng/mL), 7.86 ± 1.73 (8.6-9.9 ng/mL) and 8.83 ± 1.86 (10.0-20.0 ng/mL) were comparable with that for the entire study i.e., 8.16 ± 1.87. Similarly, the range of litter sizes at the three PPTRs as well as that for the entire study were same i.e., 5-10 puppies. It is concluded as follows: multiple progesterone assays resulted in higher pregnancy outcome and, litter sizes were not affected as long as insemination(s) occurred within the recommended progesterone titer-ranges. We recommend a comprehensive investigation of all pregnancy determinants, even for apparently healthy dogs, by dog-lovers and, regarding progesterone, multiple-assays, rather than one-fold assay, will upscale their breeding business.
Co-Authors Adedamola O Olanrewaju Adedamola Oluwakayode Olanrewaju Akintomiwa Afolarin Bolaji Barakat Adedamola Salaudeen Deborah Boluwatife Ola Mutiat Busayo Rabiu Olufisayo Oluwadamilare Leigh Oluropo Michael Obafemi Oluwadamilare Olufisayo Leigh Oluwaseyi Oladiran Fakorede Samuel Ayodele Famakinde Tolulope Adeoye Ajayi