The study was carried out to investigate the effect of marination, performed by soaking of beef in garlic juice, on microbiological and physical properties. The study was committed to a completely randomized design, with 5 treatments, i.e.: T0 (unmarinated beef, as a control), T1, T2, T3, and T4 that beef were marinated in garlic juice for 5, 10, 15, and 20 minutes, respectively, at room temperature (25⁰C). Each treatment consisted of 4 replications. Examination upon experimental parameters was conducted after marinated (and control) beef was stored for 8 hours at room temperature. Total bacteria, total coliform and water holding capacity of beef were significantly (P<0.05) affected by marination with garlic juice. Conversely, cooking loss was not significantly affected (P>0.05) by the treatments. As a conclusion, marination of beef with garlic juice could reduce total bacteria, total coliform, and water holding capacity, but could not reduce cooking loss.
Tujuan penelitian ini adalah untuk mengetahui produksi asam organik dari fermentasi jerami padi dengan berbagai tipe mikroorganisme pada berbagai suhu. Rancangan penelitian yang digunakan adalah split-splot Rancangan Acak Lengkap. Petak utama adalah perlakuan suhu (25, 35, 45°C) dan anak petaknya adalah mikroorganisme (Kontrol, Kontrol+Molases, Lactobacillus fermentum, Bacillus subtilis, Bacillus coagulant, Saccharomyces cerevisiae, Aspergillus niger). Parameter yang diamati adalah produksi asam organik (asam laktat, asam asetat, asam propionat). Produksi asam laktat tertinggi pada perlakuan B. coagulans pada suhu 35°C (53,79 g/kg BK). Produksi asam asetat tertinggi pada perlakuan L. fermentum pada suhu 35°C (13,20 g/kg BK), sedangkan produksi asam propionat tertinggi pada perlakuan Kontrol pada suhu 35°C (0,37 g/kg BK).
A study was conducted to investigate the growth rate and carcass characteristics of lambs under different feeding levels. Twenty one lambs (3 months old) were allocated into 3 treatments of feeding levels, namely 4% of body weight (BW) (T1), 5.5% of BW (T2) and provided ad libitum (T3). The diet contained 13.74% of CP and 61.79% of TDN. The lambs were raised to reach 25 kg BW, before being slaughtered. The parameters observed were dry matter intake (DMI), dry matter digestibility (DMD), body weight gain (BWG), feed conversion ratio (FCR), carcass production, meat-bone ratio (MBR), fat distribution, chemical composition of meat and fatty acids profile. The data obtained were analyzed by analysis of variance and continued by Duncan's multi-range test if there was any significant difference among the treatments. The results showed that the average of DMD was 59.71% (P>0.05). The lambs fed T3 had the highest BWG (203 g/day), the lowest FCR (6.8) and the shortest rearing time (67 days) (P<0.01). The average of carcass percentage was 46.36% and meat production was 6,931 g (P>0.05). The lambs of T3 had the heaviest carcass fat (2,698 g), the lightest carcass bone (1,985 g), the highest MBR (3.6), and the highest PUFA to SFA ratio (0.55). It can be concluded that the higher the feeding level resulted in the higher growth rate, the lower feed conversion ratio, higher meat-bone ratio and higher carcass fat production, lower feed conversion ratio and the shorter rearing time; but did not af-fect the meat quality.
ABSTRAKPemanfaatan energi pakan oleh ternak dipengaruhi oleh imbangan protein-energi di dalam pakan. Tujuan dari penelitian ini adalah untuk mengetahui imbangan protein kasar (PK) dan Total Digestible Nutrients (TDN) di dalam pakan yang efisien untuk berproduksi pada ternak domba lokal, dengan melihat kemampuan energi yang dimanfaatkan dari pakan. Domba lokal jantan sebanyak 24 ekor dengan rata-rata bobot badan awal 18±3,1 kg (CV 17,15%), dirancang dengan rancangan acak lengkap (RAL) ke dalam 6 perlakuan pakan komplit : Treatment 1 (PK 18,84% dan TDN 61,56%), Treatment 2 (PK 16,29% dan TDN 66,51%), Treatment 3 (PK 19,94% dan TDN 60,29%; T3), Treatment 4 (PK 19,40% dan TDN 67,31%), Treatment 5 (PK 20,88% dan TDN 60,47%), Treatment 6 (PK 20,12% dan TDN 63,05%). Data dianalisis dengan analisis variansi. Konsumsi BK pada domba antar perlakuan menunjukkan hasil yang tidak berbeda nyata (P>0,05). Rata-rata konsumsi BK dari penelitian ini adalah 775,6 g/hari. Konsumsi energi pada setiap perlakuan tidak berbeda nyata (P>0,05) (rata-rata 14,27±1,7 MJ/hari). Pengaruh imbangan PK dan TDN pakan yang berbeda pada jumlah energi yang tercerna pada setiap perlakuan tidak berbeda nyata (P>0,05). Rata-rata energi termetabolis pada domba lokal dalam penelitian ini adalah 6,28±0,9 MJ/hari (P>0,05). Simpulan dari penelitian ini adalah imbangan PK dan TDN pakan yang berbeda pada penelitian ini tidak memberikan pengaruh terhadap pemanfaatan energi dan pertambahan bobot badan (PBBH) domba lokal.Kata Kunci: domba, imbangan PK dan TDN, pemanfaatan energi pakan The Effects of Difference Ratio of Dietary Crude Protein and Total Digestible Nutrients on The Energy Utilization of Native Sheep ABSTRACTEnergy utilization is affected by protein-energy balance in the feed. The purpose of this study was to determine the optimum balance of crude protein (CP) and total digestible nutrients (TDN) in a feed efficiency on the native sheep, by looking at the ability of the utilization of energy from the feed. 24 male native sheep with an average of initial body weight around 18±3.1 kg (CV=17.15%), were used and designed with a completely randomized design (CRD) into 6 dietary treatments of complete feed: Treatment 1 (CP 18.84% and 61.56% TDN), Treatment 2 (CP 16.29% and 66.51% TDN), Treatment 3 (CP 19.94% and 60.29% TDN), Treatment 4 (CP 19.40% and 67.31% TDN), Treatment 5 (CP 20.88% and 60.47% TDN), Treatment 6 (CP 20.12% and 63.05% TDN). Data were analyzed by analysis of variance. Results of DM intake between treatments were not significantly different (P>0.05). The average intake of DM of the study was 775.6 g/day. Energy intake in each treatment was not significantly different (P>0.05) (14.27±1.7 MJ/day). Different ratio of CP and TDN on digested amount of energy in each treatment were not significantly different (P>0.05). Average metabolized energy in native sheep in this study was 6.28 ± 0.9 MJ/day (P>0.05). Conclusion from this research is the different balance of CP and TDN in this study do not have any impact on energy utilization and body weig...
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