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Comparative Study on Carcass Characteristics of Different Genetic Groups of Spent Hen in Bangladesh

K.N. Munira
Bangladesh Livestock Research Institute, Savar, Dhaka Bangladesh.

M.J. Uddin
Sylhet Government Veterinary College, Tilagor, Sylhet, Bangladesh.

S. Faruque
Bangladesh Livestock Research Institute, Savar, Dhaka Bangladesh.

M.S. Parvez
Bangladesh Livestock Research Institute, Savar, Dhaka Bangladesh.

M.Y. Miah
Bangladesh Livestock Research Institute, Savar, Dhaka Bangladesh.

M.S.I. Siddiqui
Bangladesh Livestock Research Institute, Savar, Dhaka Bangladesh.

Abstract/ Executive Summary:

The carcass characteristics and meat yield studied using a total 20 number of cage reared spent hens of White Leghorn (WLH), White Rock (WR), Rhode Island Red (RIR) and Barred Plymouth Rock (BPR). There were a significant different (p< 0.05) between breeds with live weight and dressed weight although it differ breed to breed. In case of dressed weight it is observed higher in RIR intermediate in BPR & WR and lower in WLH. Shank length, head weight, liver weight and gizzard weight were statistically non-significant between breeds. Shank length was statistically non-significant between breeds but shank weight was highly significant between them and highest in WR, intermediate in RIR & BPR but lowest in WLH. Viscera loss is higher in WLH then RIR and WR, BPR are in almost similar and the similar trained was found for feather loss and blood discharge. The result exhibits that the RIR carcass is the best, BPR and WR are in second position and the lowest is WLH in qualitative or quantitative measure not only for heavy breed but the total loss (viscera, feather and blood) is the lowest in comparison to the other three breeds. On the contrary, correlation between dressed carcass weight and abdominal fat was estimated and highly correlation was found in WLH followed by BPR, RIR and WR. If dressed carcass weight increase 1 (g) then abdominal fat increase by 0.2136(g), 0.1297(g), 0.1819 (g) and 0.0591 (g) respectively for WLH, BPR, RIR and WR. Finally it can be concluded that the RIR carcass is the best in terms of quality and quantity. The WR & BPR are almost in similar holding second position and the lowest is WLH.

Keywords: Carcass characteristics, Genetic group, Spent hen

Location: Poultry Research Farm in Bangladesh Livestock Research Institute, Savar, Dhaka, Bangladesh

Start Date: 00-01-2003

End Date: 00-10-2003

Program Area: Quality and Nutrition

Commodity: Poultry

Objectives:

To find out and compare the carcass quality of spent hen of different breed.

Methodology:

This research work was done at Poultry Research Farm in Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka, Bangladesh from January, 2003 to October, 2003. Birds of all types were reared under same environment and same management. Age at between 280 and 287 days, 20 cage reared spent hens of breed White Leghorn (WLH), White Rock (WR), Rhode Island Red (RIR) taking 5 birds from each treatment were taken. After recording the live weight, the birds were fasted for over night (12 hours) and reweighed before slaughter and thereafter as per to the procedure outlined the birds were slaughtered, bled, plucked and weighed to determine blood and feather losses. Then the carcasses were eviscerated and dissected according to the methods. The abdominal fat was removed and weighed according to the procedure of kubena et al. as a percentage of live body weight. Fat surrounding the gizzard and intestine extending within the ischium and surrounding the Bursa of Fabricus were considered as abdominal fat. During processing weight of dressed carcass, carcass component like, heart, liver, shank length and weight, head, gizzard, skin, keel bone length, abdominal fat, blood, feather as well as eviscerate weight were recorded. The data were analyzed by using single variate General Linear Model of SPSS 9.0 for windows (SPSS) statistical package. The main parameters were the weight of dressed carcass, blood, feather, head, heart, liver, shank length & weight, gizzard, skin, keel bone length, abdominal fat as well as eviscerate weight etc. of four breeds.

Source of Information: International Journal of Poultry Science 5 (2): 178-180, 2006, ISSN 1682-8356

Article Link (Online Journal): DOI: 10.3923/ijps.2006.178.180

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The result exhibits that the RIR carcass is the best, BPR and WR are in second position and the lowest is WLH in qualitative or quantitative measure not only for heavy breed but the total loss (viscera, feather and blood) is the lowest in comparison to the other three breeds. On the contrary, correlation between dressed carcass weight and abdominal fat was estimated and highly correlation was found in WLH followed by BPR, RIR and WR. If dressed carcass weight increase 1 (g) then abdominal fat increase by 0.2136(g), 0.1297(g), 0.1819 (g) and 0.0591 (g) respectively for WLH, BPR, RIR and WR. Finally it can be concluded that the RIR carcass is the best in terms of quality and quantity. The WR & BPR are almost in similar holding second position and the lowest is WLH.

Knowledge Management: Journal