Meat yield characteristics of different upgraded dwarf chicken under intensive management condition

The study was conducted with attempts to determine the effects of autosomal dwarf (adw) gene introgression from Indigenous dwarf chicken (IDC) to White Leghorn (WLH) and Fayoumi (Fay) on growth and meat yield characteristics. Experiment was carried out at the Poultry Farm of Bangladesh Agricultural University (BAU), Mymensingh for a period of 28 months from March 2013 to June 2015 under intensive management condition. In this study, the di-allele crossing between WLH, Fay and IDC produced 4 up-graded chickens viz. IDC♂ × WLH♀, WLH♂ × IDC♀, IDC♂ × Fay♀ and Fay♂ × IDC♀. The up-graded F1 generations were mated intersex to access their productivity. The up-graded F1 generations were mated intersex to access their productivity. Pre-slaughter live weight of birds significantly (P<0.001) varied by genotype, sex and genotype × sex interaction. Percentage of thigh meat, drumstick meat, dark and total meat weights was significantly influenced by genotype. Although meat yield parameters of male birds in relation to live weight were found higher than their female birds, some parameters like breast meat, liver, giblet and total meat yield were found higher in female birds than that of male birds of all genotypes. However, meat yield parameters like percentage of thigh, drumstick and total meat yield were the highest in IDC♂ × Fay♀ and Fay♂ × IDC♀ and the lowest in IDC♂ × WLH♀. From the above findings, Fayoumi mediated dwarf genotypes showed better meat yield characteristics than Leghorn mediated dwarf genotypes.

Penerapan Analytical Network Process Dalam Menentukan Ras Ayam Serama Simple Additive Weighting (SAW)

Serama chicken is the result of dwarf chicken crossing and is a new type of ornamental poultry currently popular in Indonesia. So it becomes a consideration for lovers of serama to get information about quality of serama chickens that need to get accurate information about quality of serama chickens that still needs to be discussed for the assessment of serama chickens, therefore the author tries to implement it in the form of a Decision Support System in determining chicken breeds as well as by applying the Simple Additive Weighting method to assist in optimal decision making. So that the expected results of the quality of the serama chicken can help in determining the standard of serama chicken assessment.

Penerapan Metode Analytical Hierarchy Process (AHP) dalam Menentukan Ras Ayam Serama

Ayam Serama merupakan jenis unggas hias baru yang berukuran sangat kecil dan ringan dan merupakan hasil persilangan ayam katai, ayam serama ini merupakan jenis unggas hias yang sedang popular saat ini di Indonesia. Sehingga menjadi pertimbangan bagi para pecinta ayam serama untuk mendapatkan informasi tentang ras ayam serama, informasi yang dapatkan nantinya dapat menjadi pedoman bagi para pecinta ayam serama dalam menentukan ras ayam serama dengan akurat, dimana saat ini masih perlu dilakukan pembahasan untuk penilaian ras ayam serama. Dalam hal ini diperlukan analisa yang tepat untuk mempercepat proses identifikasi dalam menentukan rasa ayam serama. Oleh karena itu dibutuhkan sebuah model yang dapatmenggambarkan seluruh sistem komputerisasi yang mendukung dalam proses pengambilan keputusan. Sistem pendukung keputusan dengan menggunakan Metode Analytical Hierarchy Process ini melakukan penilaian pada setiap ayam dengan ragam kriteria, dan perubahan nilai bobot. Hal ini berguna untuk memudahkan pengambilan keputusan yang terkait dengan identifikasi ras ayam serama, sehingga akan didapatkan ayam yang paling layak dinyatakan sebagai ras ayam serama.Chicken serama is a new ornamental poultry sized very small and light is the result of a cross chicken dwarf , chicken serama it is the type of ornamental poultry being popular current in indonesia. So that it becomes consideration for the lovers chicken serama to get information about race chicken serama , information get will have become guidelines for the lovers chicken serama in determining race chicken serama accurately , where the current is still needs to be discussed to the assessment of chicken serama race. In this is the right to expedite the identification in determining chicken serama . Hence needed a model could describe the whole system computerized that supports in the decision-making process. The support system decision by using the method analytical hierarchy process conducts judgment on every chicken with its diversity of criteria, and fluctuations in the weight. It is useful to ease decision-making associated with identification race chicken serama, so that it will obtained chicken most worthy expressed as race chicken serama.

Phenotypic characterization and productive potentialities of indigenous dwarf chicken of Bangladesh

The study was conducted to investigate the phenotypic features, morphometry and production potentialities of indigenous dwarf chicken (IDC) of Bangladesh under intensive management condition. A total of 48 females and 12 males were collected from different districts and the experiment was performed at BAU Poultry farm for a period of 75 weeks. The predominant plumage and skin color were black and white, respectively. The average shank length, shank circumference and live weight (28 weeks) in adult males and females were 7.5 and 4.69 cm, 6.28 and 3.69 cm, and 1.77±0.38 and 1.10±0.077 kg, respectively. The reduction of live weight for dwarf male and female chickens relative to their normal shanked counterparts (NSC) at same age was 12.91 and 16.91%, respectively. Hen day egg production, average egg weight, average feed intake and FCR (feed conversion ratio) of IDC were recorded 37.43%, 38.25 g, 69.57g and 4.58, respectively. The average age and weight at sexual maturity were recorded as 166.53 days and 1093 g, respectively. IDC consumed 11.13% less feed than NSC during 1-20 weeks. Survivability of IDC up to 0-8, 1-23 and 24-75 weeks of age were found 97.25, 94.90 and 95.24%, respectively. The study reveal that IDC had relatively lower adult weight and consumed less feed without affecting egg production compared to NSC under intensive management condition and could be exploited its potentiality for development of mini layer under semi-scavenging system of Bangladesh.Bang. J. Anim. Sci. 2016. 45 (1): 52-61

Reproductive potentials, meat yield and egg quality characteristics of indigenous dwarf chicken of Bangladesh

The study was conducted to investigate reproductive potentialities, meat yield and egg quality characteristics of indigenous dwarf chicken (IDC) of Bangladesh under intensive management condition. The experiment was conducted at BAU Poultry farm for a period of 26 months from March 2013 to April 2015.A total of 499 eggs were incubated to examine hatching performance, 64 eggs were used to determine egg quality characteristics and 33 birds of 24 weeks age were slaughtered to investigate meat yield characteristics. The mean of hatching egg weight and IDC chick weight were 39.81g and 26.68g, respectively. Estimated chick weight was 67.19% of the egg weight. The average mature body weight and age at sexual maturity of IDC was 1093.20 g and 166.53 d, respectively. The average hen day egg production of IDC up to 32 and 75 weeks of age was 55.22 and 37.43%, respectively. The estimated fertility and hatchability of IDC eggs were 78.36 and 71.80%. Among the meat yield parameters considered, dressed weight, breast weight and thigh meat weight varied significantly (P<0.05) between the males from IDC and the chicken with normal size shank (CNS). IDC also differed significantly (P<0.01) from CNS in terms of neck length (P<0.01) and drumstick bone length. Egg quality parameters like egg weight, shape index, yolk diameter and egg breaking strength varied significantly (P<0.05) between IDC and CNS. In addition, eggs of IDC and CNS showed significant (P<0.01) variation in dry albumen weight and albumen dry matter percent. In conclusion, the findings of the present study provided with some basic information about the potentialities of IDC which could be utilized in future breeding program.Asian J. Med. Biol. Res. December 2015, 1(3): 416-423

Effect of age on semen quality in naked neck and dwarf chicken under tropical climatic conditions

The present study was undertaken to elucidate the effect of age on semen quality of naked neck and dwarf chicken lines under tropical climatic conditions. Semen collected by abdominal massage at 4-week intervals from 24 to 48 weeks of age was evaluated for different semen quality parameters. Except sperm concentration and appearance, all other parameters were significantly (P < 0.05) affected by the age of the birds. The semen volume, motility, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide dye reduction test and percentage of live sperm were significantly (P < 0.05) lower at 24 weeks of age compared with 40 weeks of age. At 24 weeks of age the dead sperm percentage was significantly (P < 0.05) high and with advancing age it decreased. There was a significant difference (P < 0.05) between the gene lines for volume, appearance, motility, sperm concentration, and percentage of live and dead sperm. Except for sperm concentration, significant (P < 0.05) interaction between gene lines and age was observed in other parameters. In conclusion, semen quality was different between naked neck and dwarf line males and age affected semen quality of the gene lines studied in different manners.