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Journal : Ovozoa: Journal of Animal Reproduction

Sex difference, growth pattern, and cephalic index of Turi ducks at different ages based on head morphometry Bangun Nur Wijaya; Yeni Dhamayanti; Sri Mulyati; Soeharsono Soeharsono; Sunaryo Hadi Warsito; Sri Hidanah
Ovozoa: Journal of Animal Reproduction Vol. 13 No. 2 (2024): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v13i2.2024.105-114

Abstract

This study aims to determine the morphometric differences in the head of male and female Turi ducks. Ten male and ten female day-old ducks (DOD) were randomly selected by a lottery system from the population, raised, and had their head morphology measured using a digital caliper with an accuracy of 0.01 mm on the first day, and at the age of 2, 4, 6, and 8weeks. The result showed that male Turi duck had wider (p <0.05) head at the ages of 1 day, 2 and 6 weeks, head length and head height at the ages of 1 day, 2, 4, 6, and 8 weeks, rostrum width at the ages of 1 day, 4, 6, and 8 weeks, and rostrum length at the age of 2, 4, 6 and 8 weeks. There were no significant differences (p >0.05) in the head width at the ages of 4 and 8 weeks, rostrum width at 2 weeks, and rostrum length at 1day old male and female Turi ducks. Morphometric growth pattern showed that older Turi ducks (at a range of 1 day to 8 weeks) had larger (p <0.05) head morphometry. However, the cephalic index in male and female Turi ducks was not significantly different (p > 0.05) at all ages. It could be concluded that in general head morphometry was useful for determining male and female Turi ducks at the ages of 1 day, 2, 4, 6, and 8 weeks
Estrus quality, non-return rate and conception rate in the incidence of repeat breeding in dairy cow after 2%povidone iodine therapy combined with prostaglandin F2α at KUD Tani Wilis Tulungagung Zahrorona, Amira Halimah; Sri Pantja Madyawati; Pudji Srianto; Hermin Ratnani; Sunaryo Hadi Warsito; Sri Hidanah
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.v14i1.2025.46-51

Abstract

Repeat breeding is a condition in which cows fail to conceive after being bred three or more times. This study aims to determine the quality of estrus, non-return rate (NRR) and conception rates obtained after cows were treated with 2% povidone iodine. The study involved 30 Holstein Friesian cows, each having calved three times and experiencing repeat breeding. Cows in estrus were treated with 10 mL of 2% povidone iodine intrauterinely, followed by an intramuscular injection of 2 mL (250 mg/head) of prostaglandin F2α (PGF2α, Luteosyl) five days later. Estrus quality was observed by examining changes in vulvar mucosa color, mucus discharge, and vulvar temperature. Pregnancy diagnosis was made at 60 days. Results showed that 43.3% of cows had estrus quality score 3 (cows showed dark red vulvar mucosa, transparent mucus, temperature 38.9 ± 0.5 ºC), 23.3% had score 2 (cows showed reddish vulvar mucosa, some cloudy mucus, temperature 38.7 ± 1.0 ºC), and 33.3% had score 1 (cows showed pink vulvar mucosa, cloudy mucus, temperature 38.6 ± 0.5 ºC). Of the 30 cows, 20 had a non-return rate (NRR) of 66.7%. Based on these results, it can be concluded that 2% povidone iodine has a positive effect on estrus quality, NRR, and conception rates in dairy cows experiencing repeat breeding.
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.