This study was aimed at investigating the external and internal egg quality traits along with their correlation values of an indigenous (Deshi), three exotics (Cobb 500 of Broiler, Fayoumi, and RIR) and a crossbred (Sonali derived from RIR♂× Fayoumi♀) chicken breeds available in Rajshahi. From a total of 50 eggs (5 breeds × 10 replicates each), the external quality traits such as gross egg weight (EW), egg length (L), egg width (W), egg volume (EV), shell weight (SW), shell ratio (SR) and egg shape index (ESI), and the internal quality traits like yolk weight (YW), albumen weight (AW), yolk ratio (YR) and albumin ratio (AR) were determined. Results showed that highly significant differences exist for both external and internal egg quality traits between the genetic groups of chicken (P<0.001). Even though RIR showed the highest EW and EV and Fayoumi had the lowest for both traits, AR was in the sequence of Cobb 500 > RIR> Indigenous> Fayoumi> Sonali. Phenotypic correlations among the egg quality traits revealed that EV was not significantly correlated with EW except for Sonali (P<0.001). The association between EW and ESI was negative in all the chickens except Sonali. However, EW was significantly correlated with the AW in RIR (P<0.001), Cobb 500 (P<0.01) and Sonali (P<0.01). Moreover, the EW was significantly correlated with YW only in Fayoumi and RIR (P<0.05). In view of the cholesterol, fat and antioxidant contents of the hen's egg, a higher AR is healthier than a higher YR. The present findings therefore suggest that Cobb 500, RIR and Indigenous eggs are healthier than Fayoumi and Sonali eggs that contain higher YR.Key words: Egg quality traits, phenotypic correlation, Indigenous, exotic and crossbred chickens mvivsk: GB M ‡elYvwU ivRkvnx ‡Z mnRjf¨ GKwU †`kx, wZbwU we ‡`kx Ges GKwU msKi Rv ‡Zi gy iMxi evwn¨K I Avf¨š-ixY wW ‡gi ˆewkó¨ wb ‡q Kiv n ‡q ‡Q| †gvU cÂvkwU (5wU RvZ × cÖ wZwUi 10wU †iwc− ‡Kkb) wW ‡gi evwn¨K ˆewkó¨ †hgb IRb, ˆ`N©, cȪ' , AvqZb, †Lvmvi IRb, †Lvmvi Aby cvZ Ges AvK… wZ mPx I Avf¨š-ixY ˆewkó¨ †hgb Kz my ‡gi IRb, mv`v As ‡ki IRb Ges Kz my ‡gi Aby cvZ I mv`v As ‡ki Aby cvZ wbY© q Kiv nq| M ‡elYvq †`Lv hvq †h, wW ‡gi evwn¨K I Avf¨š-ixY ˆewkó¨¸wji cv_© K¨ gy iMxi †R ‡bwUK RvZ Aby mv ‡i AZ¨š-Zvrch© cỸ© fv ‡e we`¨gvb| hw`I RIR wW ‡gi IRb I AvqZb m ‡e© v"P Ges Fayoumi wW ‡gi IRb I AvqZb me© wbgoe cwijw ¶Z n ‡q ‡Q, Z_vwc mv`v As ‡ki Aby cvZ Cobb 500 > RIR > †`kx > Fayoumi > Sonali GB ch© vqµ ‡g cvIqv hvq| Sonali Qvov Ab¨vb¨ Rv ‡Zi gy iMx ‡Z wW ‡gi AvqZb I IRb Zvrch© cỸ© fv ‡e m¤úwK© Z| Avevi †mvbvwj Qvov Ab¨vb¨ mKj Rv ‡Zi gy iMx ‡Z wW ‡gi IR ‡bi m ‡½ wW ‡gi AvK… wZ mPxi FYvZ¥K m¤úK© i ‡q ‡Q| hv †nvK, RIR, Cobb 500 Ges Sonali gy iMx ‡Z wW ‡gi IRb Ges mv`v As ‡ki IRb Zvrch© cỸ© fv ‡e m¤úwK© Z| ZQvov, Fayoumi Ges RIR wW ‡gi IRb Kz my ‡gi IR ‡bi mv ‡_ Zvrch© cỸ© fv ‡e m¤úwK© Z| wW ‡gi †Kv ‡j ‡÷ij, Pwe© I Gw›U-Aw· ‡W›U Dcv`v ‡bi wfwË ‡Z D"PZi mv`v As ‡ki Aby cvZ D"PZi Kz my ‡gi Aby cv ‡Zi †P ‡q ¯v¯'m¤ §Z| eZ© gvb djvd ‡ji wfwË ‡Z ejv hvq †h, Cobb 500, RIR I †`kx gy iMxi wWg Fayoumi I Sonali g...

No abstract

A total of 6,41,004 chickens were produced by 10 farms, of which Cobb 500 (broilers) in P1 were the highest in number (2,43,000) and G1 yielded the lowest (10,117 Fayoumi, RIR and Sonali breeds). The most common chicken breed reared in the area was Cobb 500 (2,76,350) and the least common was ISA Brown (43,163). With regard to productivity, significant differences existed among the farms (F 9, 103 = 29.32; P<0.001), among the chicken breeds (F 4, 108 = 3.03; P<0.05), as well as between the government and private farms (F 1, 111 = 6.17; P<0.05). It was interesting to note that all the government farms were losing concerns (G2 > G3 = G4 > G1), while all the private farms were making profits (P1 > P3 > P2 > P6 > P4 = P5). The overall profitability index (PI) values of government farms ranged between -0.09 and -0.13, whereas those of private farms between 0.18 and 0.52. Cobb 500 was the commonest but the least profitable breed, and Sonali was the most popular and cheapest one; and the growers achieved the maximum profit from Fayoumi. High feed cost, outbreak of diseases, inadequate supply of vaccines/medicines, lack of credit facilities and capital funding were recognized to be the major constraints to the poultry farming in the study area.Key words: Productivity, poultry farms, constraints, market prices, profitability index. mvivsk: 10wU Lvgv ‡i me© ‡gvU 6,41,004wU gy iwMi g ‡a¨ Ke 500 (eª qjvi) RvZwU wQj me ‡P ‡q †ewk msL¨K (2,43,000wU) hv e¨w³MZ Lvgvi P1-G Drcvw`Z Ges me ‡P ‡q Kg wQj dvDwg, Avi.AvB.Avi. Ges †mvbvjx (10,117wU) †h¸wj miKvwi Lvgvi G1-G Drcvw`Z| Aa¨qb GjvKvq me ‡P ‡q †ewk Drcvw`Z gy iwMi RvZwU n ‡"Q Ke 500 (2,76,350wU) Ges me ‡P ‡q Kg Bmv eª vDb (43,163wU)| gy iwM Drcv` ‡bi † ¶ ‡Î Avš-:Lvgvi cv_© K¨ (F 9,103 = 29.32; P<0.001), Avš-:RvZ cv_© K¨ (F 4,108 =3.03; P<0.05) Ges e¨w³MZ I miKvwi Lvgv ‡ii g ‡a¨ cv_© K¨ (F 1,111 =6.17; P<0.05) wQj Zvrch© cỸ© | gRvi e¨vcviwU n ‡jv me¸wj miKvwi Lvgvi †jvKmvb (G2>G3=G4>G1) A_P me¸wj e¨w³MZ Lvgvi jvfevb (P1>P3>P2>P6>P4=P5) wn ‡m ‡e cwiPvwjZ nw"Qj| mvwe© K we ‡ePbvq miKvwi Lvgvi¸wj ‡Z jv ‡fi mPK (profitability index, PI) -0.09 †_ ‡K -0.13 Ges e¨w³MZ Lvgvi¸wj ‡Z Zv'Õ 0.18 †_ ‡K 0.52 wbwY© Z nq| Ke 500 gy iwMwU mvaviYfv ‡e me RvqMvq ‡ewk cvIqv hvq, Ab¨ w` ‡K †mvbvjx RvZwU n ‡"Q RbwcÖ q I m¯-v Ges Lvgvwiiv me ‡P ‡q †ewk jvfevb nq dvDwg Rv ‡Zi gy iwM cvjb K ‡i| Lv ‡`¨i D"P gj¨, †iv ‡Mi cª v`y f© ve, wUKv/Ily ‡ai Ach© vßZv, KR© cª vwß I gja ‡bi Afve Rixc GjvKvq gy iwMi Lvgvi¸wji Dboe q ‡b cÖ avb AšÍ ivq wn ‡m ‡e mbv³ Kiv nq|

A comparative account of haemato-biochemical profiles of an indigenus (IND) and five chicken breeds: viz. Cobb 500 (COB), cockerel (COC), Fayoumi (FAY), Rhode Island Red (RIR), and Sonali (SON, derived from RIR cock × FAY hen), has been presented. The haematological profile included total counts (TC) of RBC, WBC, platelets, haemoglobin (Hb%) and ESR and differential counts (DC) of WBC included neutrophils, eosinophils, lymphocytes, monocytes and basophils. All the haematological parameters except WBC, ESR and basophils showed significant difference among the breeds (P < 0.01). Vital biochemical parameters from blood sera such as calcium, cholesterol, creatinine, glucose and urea also showed significant difference among the chicken breeds (P < 0.05). The haematobiochemical parameters, however, were not significantly correlated (P > 0.05) with each other among the chicken breeds. Except for cholesterol vs. urea in IND, none of the correlations tested for haemato-biochemical profiles of the experimental chickens was found significant. Relevance of this study in relation to health, clinico-pathology and improved breeding strategies of the poultry species in the country has been discussed.Bangladesh J. Zool. 41(2): 135-144, 2013

Context: The quantification of morphometric variations has been regarded as peripheral to the mechanistic study of development of a species. This is now changing because the rapidly advancing knowledge of development in postgenomic biology is creating a need for more refined measurements of the morphometric changes produced by genetic perturbations or treatments.Objective: To estimate the age at marketable size and body morphometric parameters of indigenous, exotic and crossbred chicken to use such parameters as discriminate variables and to investigate the relationships among the variables of the chicken breeds under study. Materials and Methods:Six chicken breeds namely an indigenous (non descriptive, Deshi), four exotics as Broiler, Cockerel, Fayoumi and RIR, and a crossbred called Sonali (RIR♂× Fayoumi♀), were used for the study.Results: Age and nine morphometric parameters viz., gross weight (GW), blood weight (BW), feather weight (FW), skin weight (SW), body weight after skinning (BWS), visceral weight (VW), offal weight (OW), net edible weight (NEW) and edible ratio (ER), were determined from a total of 30 adult chickens (6 breeds 5 replicates each). All the parameters except FW showed significant differences among the breeds (P<0.01). RIR showed the highest values for all parameters except ER, which was the highest in Cockerel (1.77±0.23) and the lowest in RIR (1.47±0.01). Association between GW and NEW was statistically significant in Indigenous (P<0.001), Sonali (P<0.01) and all exotics except Broiler (P<0.001). Conclusion:Present results indicate that Cockerel, Fayoumi, Indigenous and Sonali chickens are advantageous genotypes as they had higher ER values compared to Broiler and RIR breeds.