Silalahi, Try Harys (2018) Hubungan Antara Bobot Badan Dan Statistik Vital Serta Lingkar Skrotum Pada Sapi Bali Di Balai Besar Inseminasi Buatan Singosari. Sarjana thesis, Universitas Brawijaya.
Abstract
Sapi Bali merupakan salah satu komoditas ternak penghasil daging yang berperan penting dalam upaya memenuhi kebutuhan daging nasional. Sapi Bali adalah sapi asli Indonesia yang memiliki banyak keunggulan seperti kemampuan adaptasi yang baik pada lingkungan yang panas dan performanya baik walaupun diberikan pakan yang berkualitas rendah. Peternak sapi Bali di Indonesia masih banyak yang belum menerapkan manajemen pemeliharaan dengan benar sehingga berdampak penurunan produktivitas sapi Bali. Sapi Bali pejantan unggul sangat berperan penting sebagai bibit yang diharapkan mampu menghasilkan keturunan yang unggul. Untuk menghasilkan keturunan yang unggul maka dilakukan proses seleksi yang memenuhi standar. Sapi Bali pejantan unggul dapat dilihat dari ukuran bobot badan, ukuran statistik vital (lingkar dada, panjang badan, tinggi badan) dan produksi semen seperti yang telah diatur dalam Badan Standardisasi Nasional Indonesia tentang persyaratan bibit sapi Bali. vi Penelitian dilaksanakan pada bulan April sampai bulan Mei 2017 di Balai Besar Inseminasi Buatan Singosari, Malang. Tujuan penelitian ini adalah untuk mengetahui nilai korelasi antara Bobot badan dan statistik vital (lingkar dada, panjang badan, tinggi badan) serta lingkar skrotum sapi Bali jantan. Hasil penelitian ini diharapkan dapat menjadi informasi tentang korelasi antara bobot badan dengan statistik vital dan lingkar skrotum pada sapi Bali jantan. Jumlah sapi Bali jantan yang digunakan dalam penelitian ini sebanyak 46 ekor yang dikelompokkan dalam tiga kelompok umur yakni umur 2-3 tahun, >3-4 tahun dan >4-8 tahun. Penentuan umur ternak diperoleh dari data recording. Metode penelitian dilakukan dengan penimbangan dan pengukuran langsung untuk mengetahui bobot badan, statistik vital dan lingkar skrotum sapi Bali. Variabel yang digunakan dalam penelitian ini adalah bobot badan sebagai variabel terikat (Y) dan statistik vital atau lingkar skrotum sebagai variabel bebas (X). Data yang diperoleh dianalisis dengan menggunakan uji korelasi dan diuji menggunakan uji t untuk mengetahui derajat hubungan antar variabel, selanjutnya dilakukan uji koefisien determinan untuk mengetahui persentase pengaruh antar variabel. Hasil analisis korelasi menunjukkan bahwa bobot badan dengan lingkar dada pada sapi Bali memiliki korelasi yang sangat signifikan (P<0,01) disemua kelompok umur dengan nilai koefisien korelasi tertinggi sebesar 0,912 yang terdapat pada sapi Bali kelompok I. Model persamaan regresi terbaik lingkar dada yaitu Y = -241+3,5X dengan R2 83,15% kelompok umur I (2-3tahun). Bobot badan dengan panjang badan memiliki nilai korelasi yang signifikan (P<0,05) pada kelompok umur I dan kelompok umur III (>4-8 tahun) dengan nilai koefisien korelasi secara berurutan sebesar 0,771 dan vii 0,544, sedangkan pada kelompok umur II (>3-4 tahun) tidak memiliki korelasi yang signifikan (P>0,05). Persamaan regresi terbaik pada panjang badan yaitu Y = -841+9,70X dengan R2 59,49% yang diperoleh dari kelompok umur I. Bobot badan dan tinggi badan memiliki nilai korelasi yang signifikan (P<0,05) pada seluruh kelompok umur dengan nilai koefisien korelasi tertinggi sebesar 0,712. Persamaan regresi yang paling baik pada tinggi badan terhadap bobot badan terdapat pada kelompok umur 2-3 tahun yaitu Y = -96+3,99X dengan R2 50,73%. Nilai korelasi antara bobot badan dan lingkar skrotum yang sangat signifikan (P<0,01) terdapat pada kelompok umur 2-3 tahun dengan nilai koefisien korelasi sebesar 0,885, sedangkan pada kelompok umur >3-4 tahun memiliki nilai korelasi yang signifikan (P<0,05) dan kelompok umur >4-8 tahun memiliki nilai korelasi yang tidak signifikan (P>0,05). Persamaan regresi antara lingkar skrotum dengan bobot badan yang paling baik terdapat pada kelompok I (2-3 tahun) yaitu Y=11,66+0,04X dengan R2 78,40. Disimpulkan bahwa terdapat korelasi yang positif antara bobot badan lingkar dada, panjang badan, tinggi badan serta lingkar skrotum sapi Bali jantan pada seluruh kelompok umur. Kelompok sapi Bali jantan umur 2-3 tahun memiliki nilai korelasi bobot badan, lingkar dada, panjang badan, tinggi badan dan lingkar skrotum yang lebih tinggi dibanding sapi Bali jantan umur >3-4 tahun dan >4-8 tahun.
English Abstract
The aim of this research was to find out the correlation of body weight, vital statistics and scrotal circumference. This research was done at Singosari Artificial Insemination Center, Malang on April–Mei 2017. The material used in this research was 46 Bali bulls with the age of 2-3 years old, >3-4 years old and >4-8 years old. The method used in this research were survey and measurement on the field directly. The observed variables in this research were body weight, chest circumference (CC), body length (BL), body height (BH) and scrotal circumference (SC). Data obtained were analyzed by correlation and simple linear regression analysis. Chest circumference (CC) have very significant relation (P<0.01) with the body weight in all ages. The best linear regression vi equation between body weight and chest circumference was indicated Y = -241+3.5X with 0.912 correlation coefficient and 83.15% for coefficient of determination. The best linear regression equation between body weight and body length was Y = -841+9.7X with 0.771 correlation coefficient and 59.49% for coefficient of determination. The best linear regression equation between body weight and body height was Y = - 96+3.99X with 0.712 correlation coefficient and 50.73% for coefficient of determination. The best linear regression equation between body weight and scrotal circumference was Y =11.66+0.04X with 0.885 correlation coefficient and 78.40% coefficient of determination. The conclusion of this research was body weight has a positive corelation with vital statistics and scrotal circumference Bali bull.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FPT/2018/78/051802516 |
| Uncontrolled Keywords: | Bali bulls, vital statistic, linear regretion |
| Subjects: | 600 Technology (Applied sciences) > 636 Animal husbandry > 636.2 Cattle and related animals > 636.208 2 Cattle and related animals (Breeding) > 636.208 21 Cattle and related animals (Genetics) |
| Divisions: | Fakultas Peternakan > Peternakan |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 22 May 2018 03:33 |
| Last Modified: | 14 Feb 2022 01:22 |
| URI: | http://repository.ub.ac.id/id/eprint/10812 |
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