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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 5 Documents
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Search results for , issue "Vol. 9 No. 2 (2020): Ovozoa: Journal of Animal Reproduction" : 5 Documents clear
Efisiensi reproduksi pada sapi perah yang teridentifikasi Bakteri non spesifik dalam saluran reproduksi Qodri, Winda Nurul Lailatil; Mulyati, Sri; Madyawati, Sri Pantja; Rimayanti, Rimayanti; Susilowati, Suherni; Tyasmingsih, Wiwiek
Ovozoa: Journal of Animal Reproduction Vol. 9 No. 2 (2020): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v9i2.2020.41-47

Abstract

The purpose of this study was to determine the reproductive efficiency of dairy cows in the presence of non-specific bacteria in the reproductive tract. This study was a descriptive study of 20 healthy and cycling dairy cows. The identification of non-specific bacteria in the reproductive tract was conducted in the previous study. Data were collected from interview, questionaire, and direct observation at the beginning of the study. Detection of estrus was performed visually, followed by artificial insemination 12-18 hours later. Non-return to estrus was checked after 21 days. Artificial insemination was repeated up to three times on cows returning to estrous. Pregnancy was checked through rectal palpation 60 days after the last insemination. Pregnant cows were followed until calving. The results showed that the estrus rate, non-return rate (NRR), conception rate (CR), calving rate (CvR), services per conception (S/C), and days open (DO), were respectively 100%, 85%, 85%, 85%, 1.3, and 93 days. It could be concluded that the presence of non-specific bacteria in the reproductive tract of dairy cows did not affect the reproductive efficiency so that pregnancy and calving could still occur.
Kinerja birahi pada sapi Aceh yang mengalami kawin berulang Jannah, Raihatul; Thasmi, Cut Nila; Hamdan, Hamdan; Siregar, Tongku Nizwan
Ovozoa: Journal of Animal Reproduction Vol. 9 No. 2 (2020): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v9i2.2020.48-52

Abstract

The aim of this study was to determine the difference in the estrous performance of Aceh cows with repeat breeding. In this study, ten Aceh cows were used, consisting of five normal cows (KI) and five repeat breeder cows (KII). The criteria of the cows used were 3-5 years old, had a body weight of 150-250 kg, and had at least two regular cycles. All cows in both groups were estrous synchronized with 5 ml PGF2a intramuscularly. Estrous observation was done visually twice a day at 8 am and 4 pm. Estrous intensity was assessed by scoring. The results showed that the intensity, onset, and duration of estrous (KI vs KII) were respectively (18.00 ± 5.70 vs 17.60 ± 6.65), (40.00 ± 14.96 vs 41.60 ± 30.67 hours), and (78.40 ± 10.43 vs 80.00 ± 40.39 hour). To conclude, there was no difference in the intensity, onset, and duration of estrous between normal Aceh cows and those with repeat breeding.
Interkorelasi antara persentase konsentrat, kadar urea nitrogen susu dan beberapa variabel sapi perah Friesian Holstein Rizal, Syaiful; Utama, Suzanita; Utomo, Budi; Susilowati, Suherni; Mulyati, Sri; Ismudiono, Ismudiono; Soeharsono, Soeharsono
Ovozoa: Journal of Animal Reproduction Vol. 9 No. 2 (2020): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v9i2.2020.53-59

Abstract

The purpose of this study was to identify the correlation among the percentage of feed concentrate, milk urea nitrogen (MUN), milk production, services per conception (S/C), calving interval (CI), and days open (DO) of Holstein Friesian cows on smallholder farms. Twenty four, 4-6 year old, non-pregnant, lactating cows, with body condition score (BCS) 5-7, having given birth 2-5 times were recorded their daily milk production, S/C, CI, DO, and the percentage of concentrate in feed given. Milk samples were collected to measure MUN. The correlation calculation among the six variables resulted 15 correlation values, ten of which were not significantly different (p >0.05), including the correlation between the percentage of concentrate and milk production on MUN. The other five correlation values were significantly different (p <0.05). The increase in concentrate intake was moderately correlated (r = 0.52), affecting 27.04% of the increase in milk production, and weakly correlated (r = 0.39), affecting 15.21% of the increase in S/C. The increase in milk production had a very strong correlation (r = 0.82), affecting 67.24% of the increase in S/C. The increase in S/C had a strong correlation (r = 0.61), affecting 37.21% of the increase in CI. The increase in CI was also affected 38.44% by the increase in milk production with a strong correlation (r = 0.62). It could be concluded that dairy cows with higher feed concentrate intake would be followed by an increase in milk production, but had a negative effect on reproduction in the form of increased S/C and CI.
Pemberian silase, complete feed, dan growth promoter pada sapi perah kawin berulang terhadap Services per Conception dan produksi susu Susilowati, Suherni; Wurlina, Wurlina; Mulyati, Sri; Utama, Suzanita; Meles, Dewa Ketut
Ovozoa: Journal of Animal Reproduction Vol. 9 No. 2 (2020): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v9i2.2020.28-34

Abstract

Repeat breeding is a reproductive disorder that harms dairy farmers because of the unachieved target to obtain one calf per year and decreased milk production. The repeat breeding syndrome can be caused by malnutrition. This study aimed to determine the effect of feeding silage, complete feed, and growth promoters in repeat breeder cows to restore the services per conception (S/C) and daily milk production. Thirty repeat breeder Holstein Friesian cows were divided randomly into three groups. The control group (P0) was fed 30-40 kg forage and 3-4 kg concentrate/head/day. Group P1 was given 8-10 kg silage or complete feed alternately every day; whereas P2 was given the same as for the P1 group, added with 10 ml growth promoter/head/day. Milk production and S/C were measured after six months of treatment. The results showed that the P1 and P2 groups returned S/C to normal (1.40 ± 0.52 and 1.30 ± 0.48), while the S/C of P0 group was 3.20 ± 0.63 (p <0.05). Daily milk production in the P1 and P2 groups (14.20 ± 1.40 and 14.60 ± 1.43 l/d) was also higher (p <0.05) than the control group (8.30 ± 1.06 l/d). It could be concluded that feeding silage and complete feeds alternately daily, with or without the addition of growth promoter, improved the S/C to the normal range and increased milk production.
Hubungan berat lahir anak, rasio jenis kelamin anak, dan umur induk kerbau terhadap lama kebuntingan Yendraliza, Yendraliza; Rodiallah, Muhamad; Zumarni, Zumarni
Ovozoa: Journal of Animal Reproduction Vol. 9 No. 2 (2020): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v9i2.2020.35-40

Abstract

This study was conducted to determine the relationship of birth weight of calves, sex ratio of the calves, and the age of the dam to the length of pregnancy in buffaloes resulting from artificial insemination in Kampar District. The method used in this research is the descriptive method by displaying the average and standard deviation. The total number of buffaloes that were artificially inseminated in 2018 and gave birth in 2019 was 21 buffalo-cows. Data were analyzed with the Pearson Product Moment (PPM) correlation. The parameters measured in this study were the length of pregnancy, calf birth weight, calf sex ratio, and dam's age. The results showed a positive correlation between the birth weight of the calves, sex ratio of the calves, and the age of the dam to the length of pregnancy of 1.4%, with an average length of pregnancy, calf birth weight, and sex ratio of 351.81 days, 27.38 kg, and 1: 1 respectively.

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