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Prof. Dr. Imam Mustofa, drh., M.Kes
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Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlaangga, Kampus C Mulyorejo – 60115, Surabaya 3015
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Ovozoa: Journal of Animal Reproduction
Published by Universitas Airlangga
ISSN : 23026464     EISSN : 2722967X     DOI : http://dx.doi.org/10.20473/ovz.v9i1.2020.1-6
Core Subject : Health, Agriculture,
Agriculture, Biological Sciences & Forestry Veterinary
Ovozoa Journal of Animal Reproduction (Ovozoa J Anim Reprod) published original articles, review articles, and case reports in Indonesian or English, in the scope of veterinary reproduction and animal reproductive biotechnology from researchers, lecturers, students, and practitioners around Indonesia and worldwide. The main objective of the Ovozoa J Anim Reprod is to disseminate the results of scientific researches in the field of animal reproduction. Ovozoa J Anim Reprod invites manuscripts in the areas:  Development of reproductive diagnostic techniques  Development of reproductive technologies  Infectious and non-infectious reproductive diseases  Comparative pathology of reproductive diseases  Reproductive endocrinology  Infertility  Environmental and stress effects on reproduction  Better understanding of the in vivo fertilization process  Better understanding of embryonic development  Artificial insemination and embryo transfer  In vitro fertilisation and embryo culture  Sexual selection of sperm and embryo  Semen and embryo preservation  Reproductive cloning  Stem cell in reproduction  Development of assisted reproductive technologies  Molecular biology, genetics, proteomics, metabolomics application to reproductive biology
Arjuna Subject : Kedokteran Hewan - Kedokteran Hewan (Lain-Lain)
Articles 161 Documents
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Morphological assessment and characterization of uterine caruncles in Bengal goats Hossain, Hafsa; Islam, Md. Rashedul; Maksuda Taslima; Mozahidul Islam Tuser; Nurjahan Akter Juli; Al Wasef; Mahfuzul Islam; Jahagir Alam
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 2 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i2.2025.76-84

Abstract

This study aimed to evaluate and characterize the gross, histologic and ultrasonographic features of uterine caruncles in Bengal goats, an indigenous breed in Bangladesh.  A total of 40 uteri were collected from sexually mature, pregnant and non-pregnant does obtained from local slaughter houses, preserved and processed in for gross morphological and histological characterization of uterine caruncles. Additionally, transabdominal ultrasonographic characterization of uterine caruncles were performed on randomly selected does at a commercial goat farm. Gross examination revealed multiple dome-shaped caruncles distributed along the endometrial surface, primarily arranged in four longitudinal rows. In both cyclic and non-cyclic goats, the average number of uterine caruncles was higher in the left uterine horn (55.85) compared to the right (54.42), with a consistent average of 4.30 rows observed in both horns. Histological examination of the caruncles revealed dense connective tissue, numerous blood vessels, and abundant uterine glands. The surface epithelium ranged from simple cuboidal to columnar. Morphometric analysis showed that the large caruncles were located in the mid-uterine horns.  Transabdominal ultrasonography identified pregnancy in 7 of 20 does (35%) and visualized uterine cotyledons between days 32 and 40 of gestation. Measurement of cotyledons via ultrasound may serve as a reliable indicator of gestational age. These findings provide baseline data that may support reproductive research, enhance breeding management, and contribute to the assessment of reproductive performance and productivity of goats in Bangladesh.
Effects of litter size and piglet sex on gestation length in Landrace pigs Sari, Merry Friana; Tarsisius Considus Tophianong; Yohanes Timbun Raja Mangihut Ronael Simarmata; Heny Nitbani
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 2 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i2.2025.85-91

Abstract

This study aims to investigate the relationship between litter size and piglet sex with gestation length in Landrace pigs. The research was conducted at a farm in Kupang, East Nusa Tenggara, involving 15 healthy Landrace sows monitored from December 2024 to February 2025. The methodology employed included the collection of primary data through direct observation and secondary data obtained from farm records. The results indicated that the average (±SD) gestation length for Landrace pigs was 113.53 ± 0.64 days, with a variation ranging from 113 to 115 days. Statistical analysis using the Spearman correlation test revealed no significant correlation between litter size and gestation length (p values= 0.115; p >0.05). These findings suggest that physiological adaptations in Landrace pigs maintain a consistent gestation length regardless of litter size. Additionally, factors such as maternal nutrition, environmental conditions, and management practices were identified as potential influencing factors. The study also found no correlation between piglet sex and gestation length, with p-values of 0.89 for male piglets and 0.602 for female piglets. Overall, the results indicate that neither litter size nor piglet sex are primary factors determining the length of gestation in Landrace pigs.
Sex determination of Bangkok Zebra dove (Geopelia striata) based on wing and tail feather morphometrics at 3 and 6 months of age Kamilah Nurizza; Yeni Dhamayanti; Epy Muhammad Luqman; Gracia Angelina Hendarti; Soeharsono Soeharsono; Boedi Setiawan
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 2 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i2.2025.98-106

Abstract

This study aimed to determine the sex of Bangkok Zebra doves (Geopelia striata) based on external body morphometric measurements. A total of 32 doves were used, consisting of 16 females (8 bird each at 3 and 6 months of age) and 16 males (8 birds each at 3 and 6 months of age). Four morphometric parameters were measured: wing chord, antebrachium (forearm) length, longest primary feather, and longest tail feather. Wing and forearm lengths were measured using digital calipers with a precision of 0.01 mm, while the longest primary and tail feathers were measured using a ruler with 0.05 mm precision. The results showed that the average wing chord, longest primary feather, and longest tail feather lengths were significantly greater (p <0.05) in males compared to females. At six months of age, males also had a significantly longer forearm than females (p <0.05). However, no significant difference (p >0.05) was found in forearm length between sexes at three months of age. It could be concluded that wing and tail feather morphometrics can be used to distinguish between male and female Bangkok Zebra doves at both three and six months of age, except for forearm length at three months.
Success rate of artificial insemination using sexed semen in dairy cows at the Setia Kawan dairy farmers cooperative, Pasuruan, Indonesia Tsaniya Atikahani Shabirah; Tri Wahyu Suprayogi; Tita Damayanti Lestari; Tatik Hernawati; Rimayanti Rimayanti; Sri Hidanah
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.112-118

Abstract

This study aimed to evaluate the success rate of artificial insemination (AI) using sexed semen in dairy cows, based on the parameters of services per conception (S/C), conception rate (CR), and calf sex ratio. A descriptive method was employed, utilizing both primary and secondary data. Primary data were collected through structured interviews with farmers using questionnaires, while secondary data were obtained from institutional records of the Setia Kawan dairy farmers cooperative, located in Tutur District, Pasuruan Regency, East Java, Indonesia. A total sample of 250 dairy cows was selected, representing 15% of the 1,669 cows that had undergone AI with sexed semen. All sampled cows had at least one prior calving and were owned by members of the cooperative, with AI performed between 2021 and 2022. Artificial insemination was conducted by certified inseminators with over five years of experience, within 6-12 hours of estrus detection. The results showed an S/C value of 1.308 (327 inseminations for 250 cows) and a CR of 81.60% (204 pregnancies from 250 inseminations). Of the 250 calves born, 85.2% (213) were female and 14.8% (37) were male, resulting in a female-to-male sex ratio of 5.76:1. These findings suggest that AI using sexed semen can significantly improve both reproductive efficiency and the production of female offspring in dairy herds.
Potential of Basil (Ocimum basilicum) leaf extract in Tris-egg yolk extender on sperm motility and plasma membrane integrity of Sapudi ram at room temperature Pratama Putra Banusiandana; Suherni Susilowati; Sri Mulyati; Tri Wahyu Suprayogi; Emy Koestanti Sabdoningrum; Nove Hidajati
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.119-126

Abstract

This study aimed to determine the effect of basil (Ocimum basilicum) leaf extract in a Tris-egg yolk extender on the motility, and plasma membrane integrity of Sapudi ram spermatozoa at room temperature. Fresh semen samples were collected from Sapudi ram using an artificial vagina. A completely randomized design was used, consisting of four treatment groups with five replicates each. Data were analyzed using SPPS with factorial analysis of variance (ANOVA) and Duncan’s test. The control group (T0) received Tris-egg yolk extender without basil leaf extract. Treatment groups T1, T2, and T3 received 1%, 2%, and 3% basil leaf extract, respectively, in the extender. Results showed that sperm motility and plasma membrane integrity (Table 4) tended to decrease with increased storage time. Among the treatment groups, the addition of 1% basil leaf extract in the Tris-egg yolk extender (T1) resulted in significantly higher (p <0.05) both sperm motility and plasma membrane integrity compared to the control (T0). However, higher concentrations of basil leaf extract (T2 and T3) did not result in significant differences (p >0.05) in sperm motility after three hours of storage compared to the 1% treatment (T1). In conclusion, the addition of 1% basil leaf extract to a Tris-egg yolk extender was effective in maintaining sperm motility and plasma membrane integrity of Sapudi ram spermatozoa stored at room temperature for up to three hours.
Supplementation with mineral mix or concentrate booster restored fertility in cows following foot-and-mouth disease infection Aris Puji Nugroho; Ali Agus; Moh. Sofiul Anam; Suherni Susilowati; Herry Agoes Hermadi; Dian Ayu Permatasari; Mohammad Anam Al Arif
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.127-137

Abstract

This study aimed to evaluate the effects of supplementing mineral mix and concentrate booster on the fertility of cows recovering from foot-and-mouth disease (FMD). Eighteen post-FMD cows were assigned to three treatment groups. Cows in the T0 group received a standard feed consisting of elephant grass and a local concentrate. In the T1 group, cows were provided the standard feed supplemented with 40 g/day of mineral mix, while cows in the T2 group received the standard feed supplemented with 600 g/day of concentrate booster. The feeding treatments were applied for 42 days, and fresh drinking water was provided ad libitum. The results showed that the onset of estrus occurred significantly earlier (p <0.05) compared to the anestrus period experienced during FMD infection. Both supplemented groups exhibited higher (p <0.05) estrus rates, pregnancy rates, and calving rates than the T0 group. The interval between the last estrus and the initiation of additional feeding was considerably longer than the onset of estrus observed after treatment. The pH and ferning scores of cervical mucus in cows from the T0 group were lower than those in the T1 and T2 groups. However, no significant differences (p >0.05) were found in cervical mucus pH or ferning scores between the T1 and T2 groups, between pregnant and non-pregnant cows, or between offspring sex categories. In conclusion, supplementation with either a mineral mix or a concentrate booster improved fertility parameter, including estrus rate, pregnancy rate, and calving rate, in cows recovering from FMD.
Comparative effects of epigallocatechin-3-gallate supplementation in skim milk, egg yolk-citrate, and combined extenders on the spermatozoa quality of Ettawah crossbred bucks during storage at 5 °C Muhammad Ikmal Robih; Anas Bad’rosana Prawindi; Tatik Hernawati; Budi Utomo; Suherni Susilowati; Tri wahyu Suprayogi; Sri Pantja Madyawati; Kadek Rachmawati; Mustofa Helmi Effendi; Yeni Dhamayanti
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.147-158

Abstract

This study aimed to determine the quality of Ettawah crossbred buck semen diluted in skim milk, egg yolk-citrate extenders, or their combination, supplemented with epigallocatechin-3-gallate (EGCG). Semen was collected from Ettawah crossbred bucks using an artificial vagina. Six ejaculates were used for replication and divided into three extender treatments: T1, skim milk; T2, egg yolk-citrate; and T3, a combination of both, each supplemented with 1.5 µg/mL EGCG. The extended semen was stored in a refrigerator at 5 °C. Diluted samples were evaluated every 24 hours until spermatozoa motility declined to 30%, the minimum requirement for artificial insemination. The results showed that spermatozoa motility, viability, plasma membrane integrity, and morphological abnormality decreased during six days of storage at 5 °C. Spermatozoa motility remained above 30% for five days in T1 (36.50±1.22%) and T2 (41.67±2.06%), and for six days in T3 (43.33±1.03%). On day six, semen in the combined extender supplemented with EGCG (T3) showed significantly higher motility, viability, and membrane integrity, and lower morphological abnormalities (p <0.05) than the other treatments. In T2, all spermatozoa quality parameters were higher (p <0.05) than in T1. It can be concluded that the combined skim milk-egg yolk-citrate extender containing 1.5 µg/mL EGCG best maintained the spermatozoa quality of Ettawah crossbred bucks during six days of storage at 5 °C. Based on spermatozoa motility, the semen remained suitable for artificial insemination.
Effect of body condition score on reproductive performance of crossbred dairy cows in the Tanga region, Tanzania Samson Jonass Goodluck; Athuman Shaban Nguluma; Sebastian Wilson Chenyambuga; Zabron Cuthibert Nziku; Sizya Lugeye; Mwemezi Lutakyawa kabululu; Padraig French
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.159-170

Abstract

First service conception rate (FSCR) is a key determinant of reproductive efficiency and farm profitability in dairy cattle. Failure to conceive leads to increase the number of services per conception (NSC), breeding costs, calving intervals, and delays in replacement heifers. Body condition score (BCS) which reflects energy reserves, plays a critical role in reproductive efficiency. However, limited data exist on this relationship in Tanzania. This study evaluated the association between BCS, FSCR, and NSC in 86 crossbred dairy cows reared at TALIRI and LITA farms in Tanga from May to August 2024. Cows were synchronized using two PGF2α injections, followed by estrus detection and insemination protocol. BCS was scored at insemination. Cows returning to estrus (RE) were re-inseminated. Pregnancy was confirmed 90±3 days post-insemination. Data on BCS, FSCR, NSC, and RE were analyzed using chi-square test, logistic regression and GLM in SAS 9.4. Mean BCS, NSC and FSCR were 2.91±0.38, 1.28±0.60 and 54.65%, respectively. BCS significantly influenced FSCR (χ²= 42.66, p <0.0001). Cows with moderate BCS (2.6-3.4) had an 89.0% likelihood of conceiving at first service, lower NSC (1.13±0.18), and fewer RE (1.10 ± 0.14 per cow), compared to cows with low or high BCS. Cows with low and high BCS did not significantly differ (p= 0.9132) in FSCR, NSC and RE. Interaction between BCS 2.6-3.4 and parity group 2 was observed significant on FSCR (χ²= 22.59, p <0.0001). These findings suggest that maintaining a moderate BCS optimizes fertility in crossbred dairy cows.
Effect of breed differences on semen qualities in adult male chickens in Nigeria Oyeleye, Olubisi Oluseun; Adelani Abayomi Adeoye; Thomas Ayodele Fatoba
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.138-146

Abstract

Efficient reproduction is paramount for the sustainability and profitability of poultry enterprises. This study examined the influence of breed on semen quality traits in four chicken breeds commonly found in Nigeria, namely White Yaffa, Noiler, Yoruba ecotype and Fulani ecotype. A total of 40-day-old male chicks were used in the experiment, with 10 birds per breed. The birds were raised to 26 weeks before semen was collected. Mature cocks from each breed were subjected to semen collection and evaluation, with emphasis on both qualitative and quantitative parameters such as semen volume, color, viscosity, odor, motility, viability, and morphological characteristics. The findings revealed significant differences among the breeds studied (p <0.05). Noiler cocks recorded the highest semen volume (0.52 ± 0.04 mL) while the indigenous Yoruba ecotype produced the lowest semen volume (0.31 ± 0.01 mL). White Yaffa performed best with the highest fast progressive motility (80.33%), followed by Noiler, Fulani, and lastly Yoruba respectively at p <0.05. The sperm counts showed that Fulani had the highest concentration (1.33×10⁹/mL), followed by White Yaffa (1.23×109/mL) and Yoruba (1.11×109/mL). Noiler, in spite of its large semen volume, had the lowest sperm concentration (0.67×109/mL). Despite this variation, all breeds displayed normal semen color, viscosity, and odor, reflecting general semen viability across the groups. In conclusion, this study highlights the importance of breed as a determining factor in semen quality of male chickens. The findings from this study provides useful insight for poultry breeders, researchers and farmers in selecting suitable breeds for breeding programs.  
Concurrent cutaneous papilloma and vaginal fibroepithelial polyp in an adult female dog Ola, Olawale Olawumi; Jarikre, Theophilus Aghogho; Tijani, Monsuru Oladunjoye; Olaifa, Olanrewaju Samuel; Adekunle, Usman Abdulrauf; Ohore, Obokparo Godspower; Alaka, Olugbenga Olayinka; Omosekeji, Linda Chinyere; Onoja, Moyinoluwa Julianah; Bolaji, Oluwadarasimi Faith; Oyeyemi, Matthew Olugbenga; Fagbohun, Olusegun Adesina; Eyarefe, Oghenemega David
Ovozoa: Journal of Animal Reproduction Vol. 14 No. 3 (2025): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v14i3.2025.171-178

Abstract

Simultaneous occurrence of cutaneous papilloma and vaginal fibroepithelial polyp in old dogs is rare, making such cases clinically and academically significant. An eight-year-old female Boerboel presented with a one-year history of non-pruritic, wart-like skin lesions and a large vulvar mass observed on the day of presentation. Clinical examination, fine-needle aspiration, surgical excision, and histopathological analysis were performed to establish the diagnosis. The vulvar mass measured 16 × 10 × 8 cm, was firm, hyperemic, and smooth, with focal necrosis and hemorrhage. Cutaneous lesions were small, irregular, and cauliflower-like, located on the flank and hind digits. The client had initially misinterpreted the associated bloody vaginal discharge as estrus. Fine-needle aspirates from the vulvar mass showed predominantly cornified epithelial cells. Histopathological examination confirmed the skin lesions as cutaneous papillomas, characterized by hyperplastic stratified squamous epithelium with orthokeratotic hyperkeratosis, and acanthosis. The vaginal mass was diagnosed as a fibroepithelial polyp composed of a hypocellular stroma of bland spindle cells, non-keratinized squamous epithelium, and dense neutrophilic infiltration with necrotic debris. This case adds to the sparse body of knowledge on concurrent cutaneous and reproductive tract lesions in dogs. It emphasizes the critical role of thorough clinical evaluation and histopathological confirmation in distinguishing lesions that may appear related but are distinct. Early surgical intervention is essential for effective management and a favorable prognosis, and systematic documentation of such cases enhances understanding of unusual presentations in veterinary practice.

Page 16 of 17 | Total Record : 161

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