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Daud Samsudewa

Department Of Animal Husbandry, Faculty Of Animal And Agriculture Sciences, University Of Diponegoro, Semarang, 50275

Author-ID : 2938032

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Veterinary

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Tingkah laku agresif rusa Timor (Cervus timorensis) jantan di penangkaran pada fase diurnal dan nokturnal Sally Saurma Silalahi; Daud Samsudewa; Enny Tantini Setiatin; Yon Soepri Ondho
Livestock and Animal Research Vol 19, No 1 (2021): Livestock and Animal Research
Publisher : Universitas Sebelas Maret

Objective: The aims of this research was known comparison the appearance of aggressive behavior of male Timor deers reared in maintaining females and territories at captivity, between the time of day time (diurnal) and night phase (nocturnal) seen from the duration, frequency, sequence and interval aggresive behavior.Methods: This observational research used the observation focal animal sampling method, by directly observing the aggressive behavior of 4 male Timor deers in a good condition, have hard antlers and maintained at location with the same management and conditions. The duration of observations was 24 hours and carried out for 7 days. The parameters observed included the duration, frequency and interval of aggressive behavior male Timor deers. The data analysis used was the non-parametric statistical test Wilcoxon Signed Rank Test.Results: The results showed that there were significant differences in the four aggressive behavior of Timor deers at day time and nocturnal phase (P <0.20) and the observations showed that the duration and frequency of aggressive behavior Timor deers such as wallowing, walking with head up, shouting, rubbing antlers, threatening, running away and climbing more frequently and for longer periods was shown during the day time (diurnal).Conclusions: Difference time between day time (diurnal) and night phases (nocturnal) causes the duration and frequency aggressive behavior of Timor deers, was longer and more frequent during the day time.

Pengaruh umur pejantan sapi Simmental terhadap tingkah laku reproduksi, kualitas semen segar dan jumlah produksi semen beku Widya Yanuarista; Enny Tantini Setiatin; Daud Samsudewa
Livestock and Animal Research Vol 20, No 1 (2022): Livestock and Animal Research
Publisher : Universitas Sebelas Maret

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Objective: The objective of this research was to determine the appearance of reproduction behavior, fresh semen quality and amount of frozen semen production based on different age of Simmental bulls.Methods: The material was used 15 Simmental Bulls with average of body weight 822,2 ± 86,53 kg and CV 10,53%. Material divided into 3 groups; age <4 years (T1), age 4-6 years (T2) and age >6 years (T3). The appearance of reproduction behavior (duration, interval, frequency), duration semen collection, fresh semen quality and frozen semen production. Kruskall Wallis test was used in study and followed by mann Withney U-test when data is a significant.Results: The result showed that the non-parametric statistical results of the Mann Whitney U-Test was significantly different (P<0,05) specifically duration of kissing T1 (0 second); T2 (0 second); T3 (2,90 second), interval of mounting T1 (43,19 ± 8,98 second); T2 (51,31 ± 11,07 second); T3 (87,42 ± 13,74 second), duration semen collection T1 (197,21 ± 11,68 second); T2 (207,35 ± 42,33 second); T3 (361,51 ± 39,94 second), and mass motility T1 (2,6 ± 0,20); T2 (2,84 ± 0,15); T3 (2,28 ± 0,35) in Simmental bulls of different age. Conclusions: Decreasing libido and the quality from the Bulls occured at >6 years old. The productive age of excellent bulls is at the age of 4-6 years by displaying the best libido display and optimal sperm quality and frozen semen production.

Performa dan lama berahi sapi Peranakan Simmental yang memperoleh penambahan kecambah kacang hijau dalam pakan Annisa Ayu Febrianti; Enny Tantini Setiatin; Daud Samsudewa
Livestock and Animal Research Vol 20, No 1 (2022): Livestock and Animal Research
Publisher : Universitas Sebelas Maret

Objective: The aims of this research were to observe the effect of mung bean sprouts to the estrous performance (onset, vulva condition, cervical mucus, behavior, pH of cervical mucus and spinnbarkeit) and length of the estrous on Simmental grade cow.Methods: The materials used in this study were 12 Simmental grade cow with characteristics aged 3 – 4 years, average of weights 399.51 ± 29.97kg, BCS 3 – 4, had normal estrous cycle and had parturition minimum one. The cow were divided into 4 groups; control without mung bean sprouts addition (T0), 250g mung bean sprouts (T1), 375g mung bean sprouts (T2) and 500g mung bean sprouts (T3). The cow was given mung bean sprout during 7 days before estrous. Data of onset, vulva condition, cervical mucus, behaviour, pH of cervical mucus and spinnbarkeit) and length of the estrous analyzed with non-parametric Kruskal-Wallis H test significancy 5% using software Statistical Package for the Social Sciences (SPSS) versi 20.Results: The result showed that estrous performance (onset estrous, vulva condition, cervical mucus, behaviour, pH of cervical mucus, spinnbarkeit) and length of the estrous with mung bean sprout addition were non significantly different on Simmental grade cow.Conclusions: According to non-parametric Kruskal-Wallis H test adding mung bean sprouts given the same effect with control.

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