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All Journal Buletin Peternakan ZIRAA'AH MAJALAH ILMIAH PERTANIAN Jurnal Sosial dan Sains
Sigid Prabowo
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Agriculture, Biological Sciences & Forestry Astronomy Environmental Science Law, Crime, Criminology & Criminal Justice Library & Information Science Physics Veterinary Other

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Journal : Buletin Peternakan

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Variabel Penduga Bobot Karkas Sapi Simmental Peranakan Ongole Jantan Hidup Sigid Prabowo; Rusman (Rusman); Panjono (Panjono)
Buletin Peternakan Vol 36, No 2 (2012): Buletin Peternakan Vol. 36 (2) Juni 2012
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v36i2.1585

Abstract

Tujuan penelitian adalah menginventarisasi variabel penduga bobot karkas yang dihasilkan dari seekor sapi hidup didasarkan pada persepsi pemotong sapi dan mengkaji hubungan variabel penduga secara statistika. Penelitian I adalah survei terhadap 30 pemotong sapi di Yogyakarta, dianalisis secara deskriptif dan penelitian II adalah pengukuran variabel penduga yang diperoleh pada penelitian I terhadap 61 ekor sapi Simmental Peranakan Ongole, dianalisis dengan korelasi, regresi, dan kurva estimasi. Pada penelitian I diperoleh 14 variabel penduga yaitu panjang badan (90,0%), lebar pinggul (83,3%), tebal kulit (66,7%), paha belakang (53,3%), paha depan (53,3%), lebar pangkal ekor (46,7%), dalam dada (36,7%), lingkar perut (36,7%), lingkar tulang canon (30,0%), kepadatan daging (30,0%), panjang ekor (26,7%), lebar tulang lumbar (20,0%), tinggi gumba (6,7%), dan lebar leher (6,7%). Penelitian II diperoleh 13 variabel penduga yang berhubungan positif (P<0,01) yaitu panjang badan (X1), lebar pinggul (X4), tebal kulit, paha belakang, paha depan, lebar pangkal ekor (X5), dalam dada (X7), lingkar perut, (X2), lingkar canon, kepadatan daging, lebar lumbar, tinggi gumba (X3), dan lebar leher (X6). Persamaan regresi bobot badan yaitu Y= -993,882+ 1,446X1+1,994X2+3,025X3+4,284X4+8,902X5+5,260X6 koefisien determinasi 0,898. Persamaan regresi bobot karkas yaitu Y= -741,714+1,779X1+2,346X3+1,048X2+2,448X4+3,160 X6, koefisien determinasi 0,905. Persamaan regresi bobot daging Y= -749,427+2,349X1 +1,988X7+1,858X3+1,019X2+4,959X5,koefisien determinasi 0,902. Persamaan kurva estimasi bobot badan yaitu Y= -1243,169+15,311(X1)-0,021(X1)2 koefisien determinasi 0,654. Persamaan kurva estimasi bobot karkas yaitu Y= -559,207+5,611(X1)+0,001(X1)2 koefisien determinasi 0,702. Persamaan kurva estimasi bobot daging yaitu Y= -484,141+4,801(X1)+ 0,003(X1)2 koefisien determinasi 0,709. Variabel penduga bobot badan, karkas, dan daging terbaik adalah panjang badan. (Kata kunci: Variabel penduga, Bobot karkas, Simmental Peranakan Ongole)
Thermotolerant Capacity of Diverse Indonesian Lowland Holstein's Black and White Skin-Pigmentation Intensity Prabowo, Sigid; Yani, Ahmad; Sumantri, Cece; Prihantoro, Iwan; Putra, Ahmad Romadhoni Surya; Achmad, Ferdian; Pramujo, Muhammad; Puspita, Poppy Satya; Güler, Serdar
Buletin Peternakan Vol 49, No 4 (2025): BULETIN PETERNAKAN VOL. 49 (4) November 2025
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v49i4.110904

Abstract

The lowland area of Indonesia has economic potential to develop as a major centre for dairy farming businesses. Still, there is a foremost matter: overheated irradiation immersed in damped air would increase the heat stress level. The present study was conducted to assess the heat stress tolerance level of lowland Indonesian Holstein cows, characterized by a dominant level of Black and White (B/W) pigmented skin coat. This study involved 34 heads of Holstein cows that were cared for in Eastern Jakarta. Breathing frequency (BF), rectum's warmth (RW), pulse rate (PL), white-skinned spot temperature (WSST), black-skinned spot temperature (BSST), average temperature rounded skin (ATRS), back region temperature (BRT), chest region temperature (CRT), upper-leg temperature (ULT), lower-leg temperature (LLT), skin's temperature (ST), body's temperature (BT), and heat tolerance coefficient (HTC) as variables were checked statistically with R 4.4.2 type software comprised correlation and independent t-test. Cows B/W classification performed with the imageJ 1.54g series program. Those analyses showed that most lowland Indonesian Holsteins were characterized by black-pigmented dominant cows (BDC). The pigmentation of both lateral sides of the body generated a significant correlation (p<0.05 and p<0.01) with several vital symptoms, including WSST, ATRS, ST, BT, and HTC, but only in the BDC Holstein class. The test of mean distinction between the two classes (BDC and WDC) produced statistically insignificant differences (p>0.05) in all measurable vital symptoms; all variables showed trends indicating that the BDC class had a greater response to heat stress. The BDC Holstein type selection base had high expectations of elevating the HTC score in Indonesian lowland cows, as the closing decision.
Co-Authors Ahmad Romadhoni Surya Putra ahmad yani Cece Sumantri Ferdian Achmad Güler, Serdar Iwan Prihantoro Pramujo, Muhammad Puspita, Poppy Satya Rusman (Rusman) Sunardi Sunardi Temy Indrayanti Zulfikhar, Rosa