Normal view MARC view ISBD view

Comparative Hatching Traits Of Different Broiler Strains

By: Muhammad Usman Khan | Dr.Farinea Malik Khattak.
Contributor(s): Prof.Dr.Muhammad Akram | Prof.Dr.Talat.
Material type: materialTypeLabelBookPublisher: 2007Subject(s): Department of Poultry ProductionDDC classification: 1001,T Dissertation note: Poultry industry of Pakistan contributes a large segment to the national economy with an investment of more than 70 billions of rupees and has become the second largest industry after textile in Pakistan. The present project is designed to study the comparative hatching traits of different broiler strains. There are many commercial poultry companies that rear parent stocks consisting of different broiler parent strains of Hubbard, Hybro, Starbro, Arbor Acres. This sector is presently showing an annual growth rate of about 10-15 percent per annum and playing a vital role in narrowing down the gap between supply and requirement of animal protein foods. The present project is designed to study the comparative hatching traits of different broiler strains Hubbard, Hybro, Starbro, Arbor Acres. A total of 600 eggs comprising 150 each of the 4 broiler breeder strains viz. Hubbard, Hybro, Starbro and Arbor acres were purchased from local companies maintaining parent breeder flocks. These eggs were divided into three replicates having 50 eggs of each. All the eggs were examined on the basis of their size, shape and shell texture for the selection of settable eggs in each replicate. All eggs were weighed and coded and 3 eggs from each replicate were taken for measuring the egg quality characteristics before setting in the setter part of the incubator for the first 18 days. On day 19 all eggs were transferred to the hatcher room. Prior to shift eggs to the hatcher, all eggs were candled to check the fertility. Chicks were collected after 21 days from hatcher. The parameter such as, egg Weight, shell weight, shell thickness, albumen Weight, albumen height, yolk colour, yolk height, yolk diameter, yolk weight, yolk index, meat spot, blood spot, hatchability percentage, chick weight, infertility percentage, dead in germ percentage, dead in shell percentage were studied. The result of present study showed that, the mean egg weight indicated significant differences among different broiler strains. The maximum mean egg weight was recorded in Hubbard strain (68.5 gm ± 4.7).The mean shell weight showed significant difference among different broiler strains. The mean shell thickness showed non-significant difference among different broiler strains. The mean yolk colour, yolk diameter, yolk weight showed significant difference (p<O.O5) among four different broiler strains. The mean yolk height and yolk index showed non-significant difference (P>0.05) among different strains. The mean albumen weight and albumin height indicated significant difference (P<0.05) among four different broiler strains. The meat spot percentage showed that the significantly increased (P<0.05) number of meat spots were observed in eggs obtained from Hubbard strain (1.33 ±4.6) compared to all of other strains. The blood spot percentage significantly (P<0.05) higher number were recorded in starbro strain (1.98 ± 0.56) as compared to all other strains. The hatchability percentage of Hubbard strain (71.63 ± 5.71) was significantly (P<0.05) higher compared to Arbor Acre strain (39.71± 4.91) and Hybro strain (33.57+ 6.22) and the hatchability percentage of Hubbard strain (71.63 ± 5.71) and Starbro strain (68.30± 7.21) were with in same ranges. The mean chick weight indicated significant difference (P<0.05) among different broiler strains. The significantly highest (P<0.05) chick weight was recorded in Hubbard strain (45.17±4.6) as compared to all other strains. The infertility percentage of Hybro strain (1.77±0.20) and Arbor Acre strain (3 9.33±5.42) were significantly (P<0.05) higher compared to infertility percentage of Hubbard strain (14.66±6.67) and Starbro strain (24.50 ±4.26).The dead in shell and dead in germ percentage showed significant difference (P<0.05) among four different broiler strains Based on the finding of this study it may be concluded that the egg quality characteristics like egg weight, shell weight, yolk colour, yolk weight, yolk diameter, albumin weight, albumin height, meat and blood spot percentage have significant differences among different broiler strains. The shell thickness, yolk index, yolk height non-significant difference among four different broiler strains. The Hubbard strain had maximum egg weight, yolk weight, yolk height, albumen height, in comparison to all other three strains. The results with regard to Hatchability traits like chick weight, hatchability percentage, infertility percentage, dead in germ percentage, dead in shell percentage have significant difference among different broiler strains. The Hubbard strain had maximum hatchability percentage and chick weight in comparison to all other three strains. On the basis of this study it may concluded that Hubbard strain have better results as compared to Arbor Acre, Hybro, Starbro strains.
Tags from this library: No tags from this library for this title. Add tag(s)
Log in to add tags.
    average rating: 0.0 (0 votes)
Item type Current location Collection Call number Status Date due Barcode Item holds
Thesis Thesis UVAS Library
Thesis Section
Veterinary Science 1001,T (Browse shelf) Available 1001,T
Total holds: 0

Poultry industry of Pakistan contributes a large segment to the national economy with an investment of more than 70 billions of rupees and has become the second largest industry after textile in Pakistan. The present project is designed to study the comparative hatching traits of different broiler strains. There are many commercial poultry companies that rear parent stocks consisting of different broiler parent strains of Hubbard, Hybro, Starbro, Arbor Acres. This sector is presently showing an annual growth rate of about 10-15 percent per annum and playing a vital role in narrowing down the gap between supply and requirement of animal protein foods. The present project is designed to study the comparative hatching traits of different broiler strains Hubbard, Hybro, Starbro, Arbor Acres.

A total of 600 eggs comprising 150 each of the 4 broiler breeder strains viz. Hubbard, Hybro, Starbro and Arbor acres were purchased from local companies maintaining parent breeder flocks. These eggs were divided into three replicates having 50 eggs of each. All the eggs were examined on the basis of their size, shape and shell texture for the selection of settable eggs in each replicate. All eggs were weighed and coded and 3 eggs from each replicate were taken for measuring the egg quality characteristics before setting in the setter part of the incubator for the first 18 days. On day 19 all eggs were transferred to the hatcher room. Prior to shift eggs to the hatcher, all eggs were candled to check the fertility. Chicks were collected after 21 days from hatcher. The parameter such as, egg Weight, shell weight, shell thickness, albumen Weight, albumen height, yolk colour, yolk height, yolk diameter, yolk weight, yolk index, meat spot, blood spot, hatchability percentage, chick weight, infertility percentage, dead in germ percentage, dead in shell percentage were studied.

The result of present study showed that, the mean egg weight indicated significant differences among different broiler strains. The maximum mean egg weight was recorded in Hubbard strain (68.5 gm ± 4.7).The mean shell weight showed significant difference among different broiler strains. The mean shell thickness showed non-significant difference among different broiler strains. The mean yolk colour, yolk diameter, yolk weight showed significant difference (p0.05) among different strains. The mean albumen weight and albumin height indicated significant difference (P<0.05) among four different broiler strains. The meat spot percentage showed that the significantly increased (P<0.05) number of meat spots were observed in eggs obtained from Hubbard strain (1.33 ±4.6) compared to all of other strains. The blood spot percentage significantly (P<0.05) higher number were recorded in starbro strain (1.98 ± 0.56) as compared to all other strains. The hatchability percentage of Hubbard strain (71.63 ± 5.71) was significantly (P<0.05) higher compared to Arbor Acre strain (39.71± 4.91) and Hybro strain (33.57+ 6.22) and the hatchability percentage of Hubbard strain (71.63 ± 5.71) and Starbro strain (68.30± 7.21) were with in same ranges. The mean chick weight indicated significant difference (P<0.05) among different broiler strains. The significantly highest (P<0.05) chick weight was recorded in Hubbard strain (45.17±4.6) as compared to all other strains. The infertility percentage of Hybro strain (1.77±0.20) and Arbor Acre strain (3 9.33±5.42) were significantly (P<0.05) higher compared to infertility percentage of Hubbard strain (14.66±6.67) and Starbro strain (24.50 ±4.26).The dead in shell and dead in germ percentage showed significant difference (P<0.05) among four different broiler strains
Based on the finding of this study it may be concluded that the egg quality characteristics like egg weight, shell weight, yolk colour, yolk weight, yolk diameter, albumin weight, albumin height, meat and blood spot percentage have significant differences among different broiler strains. The shell thickness, yolk index, yolk height non-significant difference among four different broiler strains. The Hubbard strain had maximum egg weight, yolk weight, yolk height, albumen height, in comparison to all other three strains. The results with regard to Hatchability traits like chick weight, hatchability percentage, infertility percentage, dead in germ percentage, dead in shell percentage have significant difference among different broiler strains. The Hubbard strain had maximum hatchability percentage and chick weight in comparison to all other three strains. On the basis of this study it may concluded that Hubbard strain have better results as compared to Arbor Acre, Hybro, Starbro strains.

There are no comments for this item.

Log in to your account to post a comment.


Implemented and Maintained by UVAS Library.
For any Suggestions/Query Contact to library or Email:rehana.kousar@uvas.edu.pk Phone:+91 99239068
Website/OPAC best viewed in Mozilla Browser in 1366X768 Resolution.