This study was aimed to evaluate the effect of different IgY concentrations on the production performance and quality of semen sentul cocks with different total IgY in serum. This research used 20 sentul cocks with 4 month age consisted of 10 cocks with high IgY concentration and 10 cocks with low IgY concentration. Variabels observed included production performance (feed consumption, weight gain of feed conversion, final body weight, mortality) and quality semen (macroscopic and microscopic). Study was designed using completely randomized design (RAL) with 2 treatments. All treatments were repeated 10 times. The results started that IgY concentrations treatment did not affect DMA production performance and quality of semen, but signicantly affecting (p<0.05) mass movement of spermatozoa.

<p class="abstrak2">Sentul cocks is one of the native chicken breeds in Indonesia which is originally raised by Villagers in Ciamis District, West Java. Healthy chicken cells can function properly, especially in the metabolic process. Healthy chickens are expected to produce better muscle development. IgY is a protein molecule substance that can neutralize a number of microorganisms that cause infection. The purpose of this study was to evaluate the effect of IgY concentration on physicochemical and organoleptic qualities of meat. This study used 20 cocks,  4th month ages, consist of 2 treatments (IgY concentrations above 9.30 ± 0.45 mg mL^-1 and IgY concentrations below 9.30 ± 0.45 mg mL^-1). The variable observed include physicochemical and organoleptic quality of meat. The study was used completely randomized design. Data were analyzed by t-test. The result concluded that cocks with concentrations above 9.30 ± 0.45 mg mL^-1 produced meat with lower malonaldehyde. The low content of malonaldehyde in meat shows that the meat produced is healthier.</p>

No abstract

The aim of this study was to evaluate the effect of different IgY concentrations on the quality of semen (macroscopic and microscopic) and testicular morphometry (weight, length and width of the testes) of Sentul cock testis and its ability to fertilize hens. This study used 4 months of 20 Sentul cocks consisting 10 high IgY concentration cocks and low IgY concentration cocks. This study used a complete randomized design (RAL) with 2 treatments namely low and high IgY concentration and 10 times repetitions. Data were analyzed using t-test minitab program versions 16. Based on the result, different IgY concentrations did not affect the quality of semen and testicular morphometrics, but high IgY concentration cocks were able to fertilize more hens than the low IgY concentrations one by using dilution methods. This proves that high IgY concentration cocks are more effective and efficient cocks or stud.