Jurnal Sain Peternakan Indonesia

Sex-Based Growth Performance of Three Varieties of Kedu Chicken Aged 0–10 Weeks

Muh Akramullah — 2025-08-31

This study aimed to evaluate the growth performance of Red-Combed Kedu (RCK), Black-Combed Kedu (BCK), and White Kedu (WK) chickens based on sex during the early growth phase (0 to 10 weeks of age). A total of 136 Kedu chickens were raised under uniform management conditions, consisting of 99 RCK (65 roosters and 34 hens), 29 BCK (5 roosters and 24 hens), and 8 WK (6 roosters and two hens). Body weight was recorded weekly and analysed using a two-way General Linear Model (GLM) in SAS to assess the effects of chicken variety, sex, and their interaction. The Shapiro–Wilk test confirmed that the data were normally distributed (p > 0.05). The results showed that sex had a significant effect on body weight from weeks 3 to 10 (p < 0.05), with roosters consistently exhibiting higher weights than hens. Significant differences among chicken varieties were observed only in the hen group at weeks 9 and 10, where BCK hens had higher body weights (p < 0.05) than WK hens, while RCK hens showed intermediate values. In contrast, no significant differences were found among rooster groups at any age. These findings suggest that genetic factors play an essential role in influencing growth performance in Kedu chickens, particularly in hens. This information provides a valuable foundation for breeding selection and the conservation of local chicken genetic resources.

Interactive Effects of Palm Kernel Cake Ratio and Enzyme Supplementation on Broiler Chicken Performance

Aji Praba Baskara — 2025-09-24

This study investigated the interactive effects of palm kernel cake (PKC) inclusion levels (10 and 20%) and enzyme supplementation (NSPase, protease, and mannanase) on the growth performance and nutrient efficiency of broiler chickens. A total of 720 male broilers were randomly assigned to four dietary treatments and 6 replicates per treatment with each treatment consisting of 30 chickens for 28 days in a completely randomized design. The parameters measured included feed intake, body weight gain, feed conversion ratio (FCR), energy and protein intake, and their respective efficiencies (Protein Efficiency Ratio (PER) and Energy Efficiency Ratio (EER)). Results showed that broilers fed diets with 10% PKC—both with and without enzyme supplementation—achieved significantly better final body weight, average daily gain (ADG), FCR, EER, and PER than those fed 20% PKC (P<0.05). Notably, enzyme supplementation improved nutrient utilization only at the 10% PKC level, while the 20% PKC inclusion led to reduced digestibility and performance, regardless of enzyme use (P<0.05). Feed, energy, and protein intake were not significantly different across treatments, indicating that variations in growth were primarily due to nutrient utilization efficiency (P>0.05). These findings suggest that a 10% PKC inclusion with or without enzymes optimizes broiler performance, while higher PKC levels may negate enzyme benefits due to increased fibre content.

Sido Makmur Srandakan Bantul Livestock Farmer's Group Readiness to Utilize Fermented Feed to Increase Income

Asih Kurniawati — 2025-09-24

The research aims to analyze the group's understanding and readiness in utilizing fermented feed preservation and income analysis, specifically focusing on the selection of a location within the Sido Makmur group in Srandakan District, Bantul Regency. The sample was selected as a convenience sample of as many as 17 out of 80 members who were willing to be interviewed. The research was conducted in a quantitative descriptive manner. Primary data was collected through direct interviews using a questionnaire tool. The primary data collected include respondent characteristics, land ownership, and readiness to utilize feed preservation. The results show that most farmers of productive age with formal education equivalent to high school have received training in feed preservation; their main occupation is farming. The forage potential comes from agricultural waste, plantations, grass, and legumes. Farmers are willing to provide fermented feed to livestock (82.50%) and interested in selling fermented feed (76.47%) in the form of drums with a capacity of 50 kg made by farmer’s group (47.06%), created by individual (70.59%) and plastic packaging (41.18%) Income from fermented feed in drum was IDR 37,970 and plastic was IDR 35,970. Selling price and product quality are essential factors in selling fermented feed. Fortunately, to support product quality, packaging and labelling support is needed.