Exotic Chicken Research Articles

Calcium and Phosphorus Content Of Exotic, Local and Frozen Chicken

The study set out to determine the calcium and phosphorus contents of Light (breast) and Dark (thigh) muscle. In the light muscle, calcium was higher in the local, followed by the frozen then the exotic chicken having an average of 0.05%with a range of 0.05%-0. 06% and an average of 0.7% with a range of 0.06%-0. 09%. The means of the light muscle of the local and frozen chicken were not significantly (p>0.05) different from each other but were significantly higher(p In the dark muscle, there was no significant (p>0.05) difference between the calcium content of local and frozen chicken but both were significantly (p 0.05) difference between the phosphorus of both the light and the dark muscles of the samples. There were both within and between breed differences as well as tissue differences in the content of minerals in chicken muscle. The calcium and phosphorus content of the local chicken places it in a very vintage position to compete favorably with frozen and exotic chicken. Key words: Calcium, Phosphorus, local, exotic and frozen chicken. Journal of Agriculture, Forestry and the Social Sciences Vol.2(1) 2004: 58-64

Production performance of different exotic and native crossbreds chickens

Production performance of different exotic and native crossbreds chickens

A Comparison of the Pecking and Resting Behaviour of Native and Exotic (Layer Type) Chickens in a Humid Tropical Environment

A Comparison of the Pecking and Resting Behaviour of Native and Exotic (Layer Type) Chickens in a Humid Tropical Environment

Polymorphism of Insulin-like Growth Factor I Gene in Six Chicken Breeds and Its Relationship with Growth Traits

The polymorphism of insulin-like growth factor I (IGF I) in 6 chicken breeds (total n=515) was detected by PCR-Pst I- RFLP, and allele A (621 bp) or allele B (364 and 257 bp) were observed. In these chicken breeds, it was found that exotic chicken carried high frequencies of allele B, while Chinese native chicken breeds carried high frequencies of allele A. Meanwhile the role of IGF I was investigated in 133 Ningdu Yellow chicken and 162 Wanzhai Yellow chicken. Five growth traits were recorded for analyzing the association between IGFI gene polymorphism and performance. In both the Ningdu and Wanzhai Yellow breeds, body weight at 4 months was significantly higher with BB genotype than with AA genotype (p<0.05). Furthermore, body weight at 2 months in the Wanzhai Yellow breeds was also higher with BB genotype than with AA genotype (p<0.05). There were no differences among the genotypes for the other traits studied. Based on these results, it is necessary to do more studies on IGFI before making the IGFI locus into the application of maker-assisted selection programms. (Asian-Aust. J. Anim. Sci. 2004. Vol 17, No. 3 : 301-304)

Comparison of Genetic Susceptibility Between Local and Exotic Chickens Towards Gumboro Disease

Comparison of Genetic Susceptibility Between Local and Exotic Chickens Towards Gumboro Disease

Growth Performance and Meat Yield Characteristics of Native Naked Neck and Their Crosses with Exotic Chicken

Haque, M.E., Howlider, M.A.R. and Huque, Q.M.E. 1999. Growth performance and meat yield characteristics of native naked neck and their crosses with exotic chicken. J. Appl. Anim. Res., 16: 81–86. Growth performance at different ages from day-old to 17 weeks and meat yield at 12 weeks of age were studied on 392 chicks of either sex and 28 cockerels of 7genotypes of Naked neck Desi (NaD), Rhode Island Red (RIR), White Leghorn (WL), Fayoumi (Fy) and their crosses (NaD x RIR, NaD x WL and NadxFy), respectively. Among crossbreds highest (P<0.01) day-old weight was found in NaDRIR followed by NaDWL and NaDFy. Highest body weight gain and best feed conversion efficiency was found in NaDRIR followed by NaDFy and NaDWL at 17 weeks of age. Highest breast meat was produced in NaDWL followed by NaDRIR and NaDFy. NaD was the best (P<0.05) in total meat yield per cent among all genotypes. Among crossbreds growth and meat yield, respectively, were better in NaDRIR and NaDWL than other genotypes. It was concluded that, Na germplasm had a positive effect on growth and meat yield of chicken.

Comparative study of the resistance or susceptibility of local Nigerian and exotic chickens to infectious bursal disease

Local or village chickens are the major source of poultry products in less developed countries, but information is limited on their susceptibility or resistance to diseases. In this work, 6‐week‐old local Nigerian chickens, pullets and broilers were used. One day before infection the mean body weight of the broilers was more than twice that of the pullets and local chickens. The bursa: body weight (B:BW) indices of the pullets and local chickens were similar, but were significantly higher than those of broilers. Following inoculation intraocularly with pathogenic infectious bursal disease virus (IBDV) drowsiness, drop in feed and water consumption, and diarrhoea were observed among the local chickens and pullets on day 2 post inoculation (p.i.) and in the broilers on day 3 p.i. Body weight losses from 1 to 11 days p.i. were significantly higher in the local chickens and pullets than in the broilers, total mortalities being 17.6, 50.0 and 61.51% in broilers, pullets and local chickens, respectively. Necropsy showed that dehydration and proventricular haemorrhages occurred most frequent in the local chickens. The response correlated with the B:BW indices on day 14 p.i. This showed that local Nigerian chickens are more susceptible to IBD than broilers and slightly more susceptible than pullets, explaining earlier reports that mortality due to IBD was higher in pullets or light breeds of chicken than in broilers or heavy breeds.

Factors affecting mortality of crossbred and exotic chickens kept under backyard systems in Yucatan, Mexico

Chicken mortality was studied in 24 randomly selected smallholder flocks in one village in Yucatan, Mexico between July and December 1993. Each family received a package of 10 to 12 chicks of 3 weeks of age. Approximately half of the chicks were purebred and the remainder were crosses produced by mating exotic with local breeds. All smallholders were visited twice a week. Feeding and management (except vaccination and medication) were left to smallholders. Data were processed by Chi-square, Mantel-Haenzel test and survival analysis. Before reaching 140 days of age 43.2% of the birds died. The highest mortality was observed during the 113 to 140 days of age period and the lowest was in the period between 22 and 56 days of age. Of all birds, 10.5% died from coccidiosis and 7.6% from Marek's disease. Of the risk factors investigated only medication and genotype showed significant effects on mortality. The effect of genotype was significant up to 112 days of age (P < 0.05). Crossbred birds lived longer than purebred; independently, medicated birds lived longer than non-medicated birds.

Effects of feed restriction on egg production and egg quality of exotic chickens during their second year of production in a Sudano-Sahelian environment

Egg-strain Babcock 380 hens in their second year of production were used in determining the effects of three levels of feed restriction. Eighty hens were equally randomized into four treatment groups. The first treatment group served as the full-fed control (FUF) and the other three treatments were limited to 90% (R90), 80% (R80) and 70% (R70) of the amounts consumed by the control groups the previous week. The study commenced when the hen-day egg production was 56% and lasted 12 weeks. The R90, R80 and R70 treatments reduced hen-day egg production by 6.6%, 8.6% and 13.9%, respectively, and also caused significant linear ( P < 0.05) increases in percentage of egg shell weight and thickness, albumen index and Haugh unit values. Therefore restriction of the laying flock to 70% of their ad libitum level caused a significant reduction in hen-day egg production and a significant improvement in egg quality.

Failure to Demonstrate Viscerotropic Velogenic Newcastle Disease in Psittacine Birds in the Republic of the Philippines

Birds on the islands of Luzon, Mindanao, and Palawan in the Republic of the Philippines were surveyed for viscerotropic velogenic Newcastle disease (VVND). Virus isolation was attempted on 728 cloacal samples from native and exotic psittacine birds, non-psittacine birds, and domestic chickens and ducks. A VVND virus isolate was obtained from a single domestic chicken that had exhibited ocular discharge and diarrhea 3 days before sampling. All other birds were negative for VVND.