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Journal : Jurnal Agripet

Effect of Raising Laying Hens in Intensive, Continuous and Rotational Free-Range Systems on Egg Production and Yolk Cholesterol Content Khatifah, Khatifah; Mahanani, Agni Ayudha; Salihin, Muhammad
Jurnal Agripet Vol 25, No 1 (2025): Volume 25, No. 1, April 2025
Publisher : Faculty of Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/agripet.v25i1.41609

Abstract

This study aimed to evaluate the effects of raising laying hens in intensive cage and various free-range systems on hen-day production (HDP), egg weight, egg mass, yolk cholesterol, and yolk protein content. A total of 80 Isa Brown laying hens, aged 15 weeks and with an average starting weight of 1.20 kg, were assigned to four different rearing treatments: P1 (intensive cage system), P2 (continuous free-range system), P3 (rotational free-range system with two relocations), and P4 (rotational free-range system with four relocations), each with four replicates. Data were analyzed using analysis of variance (ANOVA), and significant differences (P0.05) among treatments were further evaluated using Duncan's multiple range test. The results showed that the rearing system significantly influenced daily body weight gain (DBWG), daily feed intake (DFI), HDP, egg weight, egg mass, feed conversion ratio (FCR), and yolk cholesterol content (P0.05), but had no significant effect on yolk protein content (P0.05). In conclusion, continuous free-range systems led to higher HDP and egg mass, while the intensive cage system resulted in greater egg and body weight, along with higher feed intake. The continuous free-range system was associated with a lower FCR, and the rotational free-range system with four relocations yielded the lowest yolk cholesterol levels.
Evaluation of Physical Quality Test, Proximate Test, and Production Performance Test of Sorghum and Corn Substitute Pellets with Enzymatic Treatment Mahanani, Agni Ayudha; Khatifah, Khatifah
Jurnal Agripet Vol 25, No 2 (2025): Volume 25, No. 2 October 2025
Publisher : Faculty of Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/agripet.v25i2.43484

Abstract

The purpose of this study is to determine the effect of enzymatic treatment on the physical quality test, proximate test, and performance test of pellets given enzymatic treatment on sorghum and corn. This study was conducted at the Integrated Animal Husbandry Laboratory, The University of West Sulawesi, which included physical quality tests and proximate tests. The treatment in the first stage of the study, namely, enzymatic treatment on sorghum at concentrations of 0.25%, 0.50%, 0.75%, 1%, and 0% (control) cellulase enzyme, was tested to assess the effect of increasing nutrition and decreasing crude fiber. The second stage was the preparation of feed to see the quality of the pellet test with the arrangement of treatments P0: 100% corn and 0% enzymatic sorghum, P1: 25% corn and 75% enzymatic sorghum, P2: 50% corn and 50% enzymatic sorghum, P3: 75% corn and 25% enzymatic sorghum, P4: 0% corn and 100% enzymatic sorghum. This study used a Completely Randomized Design (CRD) method with research treatments consisting of 5 treatments and 5 replications. The results of the study in the first stage can be concluded that the addition of cellulase-based enzymes to sorghum can increase crude protein and can reduce the content of crude fiber, NDF, ADF, hemicellulose. The SE2 treatment and in the second stage the treatment showed the best results based on the combination of all tests was P4 (100% enzymatic sorghum), because it provides more durable physical and organoleptic quality performance.