ABSTRACT:The purpose of this research was to know about the successfully artificial insemination (AI) using frozen and liquid semen of Ongole cross (PO) cattle indicated by Service per Conception (S/C), Days Open (DO) dan Conception Rate (CR). The materials used were 60 heads of Ongole crossbred cattle which were selected purposively using some criteria, such as having calving experience, healthy, and free from any reproduction disorder. This field experiment consisted of direct observation and interview to acquire primary and secondary data. Datas were analyzed descriptively and continued by a paired t-test. The results showed that the value of (S/C) was very significantly different (P<0.01), DO was not significantly different (P>0.05). CR for P1, P2, P3, and P4 was found 63.33% , 86.67%, 16.33%, 83.33% respectively. The conclusion of this research was AI using frozen and liquid semen with only 5 days preservation had a difference on the value of service per conception. The most successfull AI was found higher in the liquid semen which was stored for 1 and 5 days than that of frozen semen.

Paclobutrazol (PBZ), a trazole-containing fungicide, is widely used on food crops. Frequent usage of PBZ may contaminate water, but its toxicity to aquatic organisms is understudied. Although the chronic effects of PBZ exposure on reproductive, antioxidant defense, and liver metabolism systems in rockfish have been reported, the toxic effects of PBZ on aquatic embryos are unknown. Here, we report that PBZ disrupts the development of heart and craniofacial cartilage in zebrafish embryos, and decreases their survival and hatching rates. PBZ affects the normal process of cardiac looping, which may lead to a slower heart beat accompanied by pericardia edema and apoptotic myocytes. PBZ also decreases the population of migratory neural crest cells, which give rise to craniofacial cartilage. Our results reveal high embryonic toxicity of PBZ on aquatic organisms, and thus hold significance for the impact of fungicides on public health and ecology.

Artificial Insemination (AI) using sexed semen produce sex of calf as expected. There are various methods of sexed semen has been found. The aim of this research is to determine the effect of sexed semen methods using egg white sedimentation and percoll density gradient centrifugation toward motility and ratio of X and Y sperm Filial Ongole Cattle. Semen was collected using Artificial Vagina (AV) from Filial Ongole Cattle, evaluated and then separated using egg white sedimentation and percoll density gradient centrifugation technique. Only fresh semen with a minimum of 70% individual motile sperm and 2+ mass motility used in this study. Andromed as a based extender was diluted using aquabidest with 1:4 ratio. The obtained data were analyzed with analysis of variance (ANOVA) and continued by Duncan test if there was significant or very significant different. The result showed that the sexing methods (non sexing sperm, upper and under fraction using percoll density gradient centrifugation, upper and under fraction using egg white sedimentation technique) had very significant effect (P<0.01) on motility (64.25±3.94%; 48.55±8.28%; 53±7.93%; 56.9±8.22%; 49.75±8.19% respectively) and significant effect (P<0.05) on the ratio of X and Y sperm. The ratio of X and Y using percoll density gradient centrifugation and egg white sedimentation methods for the upper fraction were 28.0±2.26%:72.0±2.26% and 77.5±1.26%:22.5±1.26%. The ratio of X and Y using percoll density gradient centrifugation and egg white sedimentation technique for the under fraction were 69.0±15.35%: 26.0±4.37% and 22.9±1.44%: 77.1±1.44%. The study concludes that the sexed with egg white sedimentation technique is better than percoll density gradient centrifugation on sperm motility and ratio of X and Y sperm.

Purpose of this research was to investigate the effect of Bovine Serum Albumin substitution by albumen on CEP-2 to semen quality Ongole CrossBred bull stored at 3-5 o C. Research was conducted at Research Centre Beef Cattle Laboratory, Grati, Pasuruan on February 2016. Semen diluent was divided into two groups, there were P0 (90% CEP-2 + 10% Egg Yolk (EY)); and P1 (90% CEP + 0.4% albumen + 10% EY). Data of the research were analyzed using paired design t test. The result showed that after eight days chilled preservation, percentage of motility P1 (47.4±10.9%) was higher than P0 (47±9.2%). Percentage of viability P0 (83.1±1.9%) was higher than P1 (81.3±1.5%). Percentage of abnormality P1 (3.6±0.4%) was lower than P0 (3.8±0.3%). Total motile sperm count after six days chilled preservation was significantly higher in all treatments compared to the standard criteria of SNI 40% motile sperm/ml. The conclusion of this research was 0,4% albumen could replace the BSA capability on CEP-2.

Kualitas spermatozoa pada semen beku sexing sangat penting dalam menunjang keberhasilan inseminasi buatan untuk mendapatkan pedat dengan jenis kelamin sesuai harapan. Tujuan penelitian ini bertujuan untuk mengetahui kualitas semen beku semen beku non sexing dan sexing secara makroskopis dan mikroskopis. Materi dalam penelitian menggunakan starw semen beku non sexing dan sexing dengan metode pemisahan Sentrifugasi Gradien Densitas Percoll (SGDP) sapi Limousin yang diproduksi oleh Balai Besar Inseminasi Buatan (BBIB) Singosari, Malang. Metode penelitian ini menggunakan eksperimental dengan percobaan labolatorium (laboratory experiment). Variabel penelitian meliputi keadaan umum meliputi tahun produksi straw, secara makroskopis meliputi pH semen beku dan secara mikroskopis meliputi persentase motilitas, viabilitas, abnormalitas, konsentrasi dan total spermatozoa motil. Data yang diperoleh diolah Microsoft Excel dengan analisis Ragam Analysis of variance (Anova) single factor dianalisis secara deskriptif. Hasil penelitian yaitu semen beku non sexing dan sexing meliputi keadaan umum diproduksi tahun 2012 dan 2018, kualitas secara makroskopis memiliki nilai pH sebesar 6,67 dan 6,60 dan kualitas secara mikroskopis memiliki persentase motilitas sebesar 36,00 % dan 31,40 %, viabilitas sebesar 81,70 % dan 75,89 %, abnormalitas sebesar 6,93 % dan 6,78 %, konsentrasi spermatozoa sebesar 31,67 juta/ mini straw dan 12,125 juta/ mini straw dan total spermatozoa motil sebesar 11,39 juta/mini straw dan 5,10125 juta/mini straw. Kesimpulan penelitian bahwa Kualitas post thawing semen beku non sexing lebih tinggi daripada semen beku sexing menggunakan metode SGDP baik secara makroskopis maupun mikroskopis.

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ABSTRAK. Pejantan untuk program inseminasi buatan adalah pejantan unggul yang diseleksi berdasarkan libido dan produksi spermatozoa. Penelitian bertujuan untuk menganalisa hubungan antara tingkah laku seksual dengan produksi spermatozoa sapi Brahman. Materi penelitian adalah 3 pejantan sapi Brahman yang ditampung menggunakan vagina buatan. Metode penelitian adalah observasional dengan mengamati waktu reaksi dan lama ejakulasi. Observasi laboratorium dengan mengamati volume, konsentrasi, dan motilitas individu untuk menghitung total spermatozoa (TS) dan total spermatozoa motil (TSM). Pengamatan dilakukan sebanyak 10 ulangan. Data dianalisa secara deskriptif serta hubungan antara tingkah laku seksual dan produksi spermatozoa dihitung dengan korelasi Pearson. Hasil penelitian menunjukkan terdapat variasi tingkah laku seksual dan produksi spermatozoa pada sapi Brahman. Individu Cipta mempunyai waktu reaksi dan lama ejakulasi paling singkat serta produksi spermatozoa paling rendah. Hubungan signifikan antara waktu reaksi dengan TS serta TSM pada individu Bizzyard dengan koefisien determinasi (R2) sebesar 14 % dan 20%. Hubungan sangat signifikan antara lama ejakulasi dengan TS serta TSM pada individu Cipta dengan R2 sebesar 46% dan 58%. Kesimpulan penelitian adalah terdapat hubungan antara tingkah laku seksual dengan produksi spermatozoa pada sapi Brahman, dengan koefisien korelasi (r) tertinggi sebesar 0,72 dan R2 sebesar 58% antara lama ejakulasi dan total spermatozoa motil pada individu Cipta.  (The relationship between sexual behavior and semen production in Brahman bulls) ABSTRACT. Bulls for artificial insemination must be selected based on libido and sperm production. The study aimed to analyze the relationship between sexual behavior with sperm production on Brahman bulls. The material was 3 Brahman bulls collected using artificial vagina. The method was observational by observing reaction time and ejaculation duration. Laboratory observations by observing volume, concentration, and motility to calculate total sperm (TS) and total motile sperm counts (TMSC). Observations were replicated 10 times. The data were analyzed descriptively, the relationship between behavior and sperm production was examined using Pearson correlation. The results showed that there were variations in sexual behavior and sperm production in each bull. Cipta have the shortest reaction time and ejaculation duration and the lowest sperm production. A significant relationship between reaction time and TS and TMSC in Bizzyard with coefficient of determination (R2) of 14% and 20%. A very significant between ejaculation duration with TS and TMSC in Cipta with R2 of 46% and 58%. In conclusion, there was a relationship between sexual behavior and sperm production in Brahman bulls, with the highest correlation coefficient (r) of 0.72 and R2 of 58% between ejaculation duration and the total motile sperm counts in Cipta.

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