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All Journal JOSAR (Journal of Students Academic Research)
Salnan Irba Novaela Samur
Universitas Islam Balitar
Economics, Econometrics & Finance Education Electrical & Electronics Engineering

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Performance of Local Peking Duck (Anas platyrhynchos domestica) with Commercial Probiotics (Probac) at Different Levels alfan setya winurdana; Salnan Irba Novaela Samur
JOSAR (Journal of Students Academic Research) Vol 8 No 1: March 2023
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/josar.v9i1.2781

Abstract

Peking duck is one of the superior ducks that breeders are interested in keeping. Maintaining broiler ducks often occurs with several obstacles including mortality, high feed conversion and target body weight couldn’t achieve. The use of probiotics generally gives a positive response on livestock performance. This study aims to determine the performance of local Peking ducks with the addition of commercial probiotics (Probac) with different levels. The study used an experimental method with a completely randomized design with 4 treatments and 5 replications. Experimental level with P0 (without probiotics), P1 (1g/kg feed probiotics), P2 (2g/kg feed probiotics), P3 (3kg/kg feed probiotics) The variables observed were body weight, feed conversion and mortality. The best results showed that the use of a commercial probiotic (Probac) with a P2 level (2g/kg feed) had an effect on body weight, but had no effect on feed conversion and mortality in local Peking ducks. It is recommended to use a commercial probiotic (Probac) at a dose of 2g/kg of feed to increase the performance of local Peking ducks
Correlation of Sex, Age and Carcass Weight of Simmental-PO Cattle in the Slaughterhouse, Sukorejo District, Blitar City, East Java Salnan Irba Novaela Samur; Agustina Widyasworo Kunharjanti
JOSAR (Journal of Students Academic Research) Vol 8 No 2 (2023): September
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/josar.v8i2.3141

Abstract

The objective of this study is to describe the correlation between age and sex in relation to the carcass weight of Simental-PO cattle that are slaughtered at the slaughterhouse (RPH) in the Sekorejo District of Blitar City, located in East Java. The investigation was conducted in July of 2023. The study utilized 20 male and 10 female Simental-PO cattle that were slaughtered at the Sukorejo District Slaughterhouse, located in the Blitar Regency. The employed study methodology entails the utilization of the direct observation approach. The obtained data was subsequently analyzed using SPSS 22 software and afterwards subjected to statistical tests like the Pearson Bivariate Correlation Test and Multiple Linear Regression Test. The findings obtained from the bivariate Pearson correlation analysis indicated a statistically significant correlation between sex and carcass weight. However, no statistically significant correlation was seen between age and carcass weight. The regression analysis reveals that the variables of gender and age account for only 31.3% of the variation in carcass weight. The resulting regression equation is Y = 17.887 + 69.943X1 + 15.994X2. The research indicated a significant correlation between gender and carcass weight, while age does not exhibit a significant correlation with carcass weight. Therefore, further studies are warranted to explore the influence of factors besides age and gender on Simmental-PO beef carcass weight.
Co-Authors Agustina Widyasworo Kunharjanti alfan setya winurdana