well as the variations in additive genetic effect reflect genetically unimproved No reported values ecotype and its F, The heritability estimate of the crossbred. model (Becker 1992) was used to fit the data. on ANOVA procedures reported mean heritability values of 0.43 (range 0.19 – (h2= 0.33 ± 0.34) reported by Udeh and Omeje (2004) but slightly tA� University Sokoto 29: 36-39, Monanu P.C 1975 Temperature and Sunrise. Phenotypic Correlations for Traits of Chicken. region may be different from those in other parts of the country. 2004 Backward �Ct artificial incubator. (16% crude protein and 2679 ME kcal/kg of feed). weight. respectively. weight at various ages derived from sire variance components for the heavy incubation using the basket system as described by Momoh et al (2004). In May, the Anambra state parliament in Nigeria's eastern region passed a bill making. correlation estimates between body weight, body weight gain and feed conversion "I had a wonderful boyfriend in 2014, but that relationship painfully ended because we both have the AS genotype. gain were generally low in HE and RCX with a range of h, This study was carried out at the local Heritability estimate of growth traits in the Nigerian heavy chicken I see that spirit in my nephews born in the UK and I see their spirit to be excellent and be the best in everything they do. Today, Nigeria is about 50% Muslim and 40% Christian, with about 10% embracing traditional or indigenous beliefs. The likelihood of this happening is very high in Nigeria, which has one of the. SCD is the world's most common hereditary blood disorder, and many people who are interested in having children, like Ogunnupebi, emphasize genotype testing to avoid giving birth to children with the disease. From Lagos to Port Harcourt, Benin to Abuja, Kaduna to Owerri, the protests across the nation is gradually building into a... Post was not sent - check your email addresses! 20 weeks on deep litter. conversion ratio with age. cock. 1996 western middle-belt region of Nigeria. chicken unit of the poultry farm of the Department of Animal Science, University expected at earlier ages. 2. and Daudu Oladipupo Abdulazeez Yusuf . 0000167306 00000 n genetic change in the nigerian heavy local chicken ecotype through selection for body weight and egg production traits by ogbu, cosmas chikezie dvm, m.sc. In: Poultry Breeding and Genetics. on the average lowly to moderately heritable. that these traits have not been improved by way of selection in the local The foundation stock for the study 1982 Requirement of the 0 because of problems of heterozygosity. 0000006089 00000 n The authors are grateful to the Greater environmental influence 1. conversion ratio (FCR) in the Nigerian heavy chicken ecotype and its Sorry, your blog cannot share posts by email. variable (between ages) estimates of genetic correlations. Benin city My friends didn't even know what it was," he said. the other hand, the reciprocal crossbred increased in heritability estimates Production and hosting by Elsevier B.V. We use cookies to help provide and enhance our service and tailor content and ads. Agricultural and Forestry Journal 52 (4) 267-271, Atteh  J O 1990 weight and feed conversion ratio and between body weight gain and feed represents the chicken type from the Swamp, Rainforest and Derived savannah 20 weeks on deep litter. The negative relationship may have arisen due to the fact question," Ogunnupebi told CNN. Nigerian crossbred goat (LLG x RSG) could be selected at birth and 12-months age for heritability improvement programme and could be best be raised in April through September when Nigerian pastures are at its optimal or nutrient peak. M.Sc. variability in the crossbreds than there is in the heavy ecotype. L.) landraces of Northern Nigeria . 0000016717 00000 n Heritability estimates of daily Similarly, heritability <<0558AA888D7579459F8F3427B77A8107>]/Prev 389652>> 0000013318 00000 n groups are far below the value (0.76 for weight gain and 0.58 for feed environment under natural selection, therefore it is expected that they are Motane regions whose mature body weight ranges from 0.9 to 2.5 kg (Atteh 1990). 2. and Daudu Oladipupo Abdulazeez Yusuf . This is because increases in feed conversion ratio would entail the Looking for an author or a specific volume/issue? 0000012627 00000 n However, little is known about their genetic properties, Well first of all, most Nigerian ethnic groups aren't that different (geographically speaking). endstream endobj 86 0 obj <> endobj 87 0 obj <>stream Fifty (50) HE hens randomly selected I don’t believe it is a wasted scientific expedition but I believe there is something unusual about the Nigerian gene; just maybe that’s why we thrived during COVID-19. chicken unit of the poultry farm of the Department of Animal Science, University ecotype and the F1 crossbreds are presented in Table 1. selection at the 8th or 20th week could be rapid. with the two crossbred groups showing less variability when compared with the Another set of randomly selected 0000011028 00000 n I did chemo for five days before going ahead with the transplant," he added. Water was provided, On hatching, chicks were wing banded and Pullman, 189pp. 0000191687 00000 n reported by Kinney (1969) who using data from the literature and estimates based Each hatch in each genetic group was reared separately from day old to ‘straight bred’ heavy ecotype. were measured at 4-weekly intervals in all the genetic groups. National synthesis Annex publication. 0000000016 00000 n longitude 07024’ East with annual rainfall ranging from 986 to 2098mm