Cecep Hidayat
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Weight estimation of empty carcass and carcass cuts of female SenSi-1 Agrinak chicken Cecep Hidayat; Sofjan Iskandar
Jurnal Ilmu Ternak dan Veteriner Vol 22, No 1 (2017): MARCH 2017
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.799 KB) | DOI: 10.14334/jitv.v22i1.1626

Abstract

SenSi-1 Agrinak chicken is Indonesian local chicken that was selected for growth rate for six generations. The aim of this study was to estimate of carcass weight and carcass cuts of female SenSi-1 Agrinak chicken, based on age and live weight. The chicks were reared intensively in colony wire cages and they were slaughtered with Islamic method when they reached age of 5, 8 and 15 weeks. Empty carcass and carcass cuts were weight in fresh.  Data were analyzed using correlation and regression analysis method. Results showed that the live weight had a high positive correlation to carcass weight and carcass cuts weight of female SenSi-1 Agrinak chickens aged 5, 8 and 15 weeks. Estimation of live weight, carcass, carcass cuts, gizzard, liver and abdominal fat of female SenSi-1 Agrinak, using mathematical model, showed small value differences (0.09 - 4.43%) from the actual data. It was concluded that female SenSi-1 Agrinak chicken’s carcass weight and carcass cuts, could be estimated based on of age in days and live-body weight in gram without slaughtering.
Growth response of improved native breeds of chicken to diets differed in energy and protein content Cecep Hidayat; Sofjan Iskandar; Tike Sartika; T. Wardhani
Jurnal Ilmu Ternak dan Veteriner Vol 21, No 3 (2016): SEPTEMBER 2016
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.384 KB) | DOI: 10.14334/jitv.v21i3.1397

Abstract

The aim of doing this experiment was to observe the growth response of improved native breeds of chicken under diets differed in energy and protein content. Three groups of improved native breeds, obtained from mating of ♂KUB to ♀KUB (Line 1), of ♂SenSi to ♀KUB (Line 2) and of ♂Gaok x ♀KUB (Line 3), were subjected to three experimental diets, differed in metabolizable energy (ME) and crude protein (CP) content. The experimental diets consisted of Diet 1 (2,800 kcal ME/ kg with 17,81% CP), Diet 2 (2,950 kcal ME/ kg with 18,61% CP) and  Diet 3 (3,100 kcal ME/ kg with 19,25% CP). The experiment was designed as factorial 3 x 3 with 7 replications of each treatment combination, consisted of 5 birds per treatment combination. The chickens were raised up to 10 weeks of age. Results of the experiment showed that Line 2 (♂SenSi mated to ♀KUB) had highest body weight at 10 weeks of age (P<0.05), lowest feed conversion ratio (FCR) and highest European Production Efficiency Factor (EPEF), compared to other two lines. The appropriate diet for Line 2 was Diet 2. It could be concluded the crossbred line that was resulted from crossing of ♂SenSi to ♀KUB (Line 2), had potential to be used as improved native chicken for the industry in Indonesia supported by appropriate diet containing 2,950 kcal ME/kg with 18.61% crude protein.
Mitigation of Heat Stress in Broiler Chickens with Heat Shock Protein 70 Gene Expression as its Indicator Cecep Hidayat; Komarudin .; E Wina
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 30, No 4 (2020): December 2020
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.427 KB) | DOI: 10.14334/wartazoa.v30i4.2563

Abstract

Heat stress is an important issue in broiler chicken farms in tropical countries, such as Indonesia. Heat stress is very detrimental to broiler chickens because reducing production performance, health, and causing mortality. In the condition of heat stress, broilers synthesize Heat Shock Protein (HSP) quickly as the body's response to heat stress. HSP70 is the most studied HSP group related to heat stress. The objective of this study was to review the nutritional approach that has been done to mitigate heat stress in broiler chickens with the HSP70 gene expression as its indicator. Based on some studies, nutritional approaches that can be taken are through the management of feed availability, supplementation of vitamin C, vitamin E, plant bioactives, amino acids (taurine and glutamine), probiotics, prebiotics, synbiotics, mannan oligossaccharides (MOS) and minerals (selenium, zinc, manganese, chromium). By these approaches, HSP70 gene expression decreased, indicating that the heat stress level of broiler chicken also reduced. It can be concluded that the nutritional approach can be used as a method for heat stress mitigation in broilers with the HSP70 gene expression indicator.
Utilization of Phytase to Overcome Phytic Acid in Broiler Diet Cecep Hidayat
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 26, No 2 (2016): JUNE 2016
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.023 KB) | DOI: 10.14334/wartazoa.v26i2.1326

Abstract

Phytic acid has been considered as an antinutrient in broiler diet due to its strong chelator of divalent minerals. Phytic acid has ability for binding positively charged proteins, amino acids, and/or multivalent cations or minerals. The resulting complexes are insoluble, difficult to be hydrolyzed during digestion in poultry, and thus, nutritionally less available for absorption. The reduction of phytate activity can be carried out by phytase supplementation. The application of phytase with respect to animal feed supplement is reviewed in this paper. Application of phytase in broiler diet may liberate cations and other nutrients bound by phytate-P complexes resulting in improved production parameters in broilers. This is because phytase supplement increased nutrient (protein, minerals, amino acid, energy, and carbohydrate) digestibilities and availabilities. Overall, phytase could increase nutrient utilization in broiler, hence, increase the economic efficiency of broiler production and reduce the phosphor pollution to the environment.