Comparative Growth Performance Of Different Broilers Strains
By: Syed Ansar Hussain Shah Naqvi | Dr.Farina Malik.
Contributor(s): Prof.Dr.Muhammad Akram | Prof.Dr.Talat.
Material type: BookPublisher: 2007Subject(s): Department of Poultry ProductionDDC classification: 1000,T Dissertation note: This present study was performed to investigate the comparative growth performance of different broiler strains. The experimental birds from four different strains viz Arbor acre (AA), Hubbard (RB), Hybro (FlY), and Starbro (ST) were randomly divided into 4 treatment groups each having 14 birds to evaluate the best performing strain under the local environmental condition. All the chicks in each replicate were weighed and placed in individual litter floor pens with the provision of separate feeding and drinking equipment. Ad. Libitum feed and water was offered to the birds in each replicate with the provision of 24hours light. Commercial broiler starter feed was provided from 0-4 weeks and finisher from 5-6 weeks of age. Room temperature and humidity percentage was recorded daily. Body weight, feed intake were recorded weekly. FCR was also calculated on weekly basis. And mortality was recorded as and when occurred. At the end of the experiment two birds' one male and one female from each replicate were randomly selected to study slaughter parameters such as live weight, dressed weight and different organs weight (shank length, head weight, liver weight, gizzard weight, heart weight, intestine weight, intestine length, ceacal weight). The daily temperature range was 24 C to 40 C and the humidity percentage was from 20 to 90 % throughout the experimental period. The overall data showed no significant difference (P<0.05) in weight gain, feed consumption and FCR values of four different broiler strains. However, consistently higher weight gain and feed consumption was observed in birds of strains AA. Where as comparable FCR values were observed in birds of strains AA, RB and HY. However birds in strains SB showed lowest (P>0.05) weight gain and highest FCR. Significant differences (P<0.05) were observed in live weight of male and female birds. Highest (P<0.05) live weight and dressed weight was observed in birds of SB strain. The highest dressing percentage was observed in birds of AA and HY strains. The significant differences (P<0.05) were observed in head weight of female birds from different broiler strains, the head weight of the birds from HB was significantly (P< 0.05) higher compared to lower weight of AA. The significant difference (P<0.05) was observed in shank length of female of the group AA birds. There was no significance difference (P> 0.05) in the liver weight, gizzard weight, intestinal weight, intestinal length, and ceacal weight of birds from different broiler strains. The trial indicated that all the broiler strains such as Arbor acre (AA), Hubbard (RB), Hybro (HY), and Starbro (SB) can be reared profitably and uniformly under our local environmental temperature. It is also evident from the data that each strain has its own peculiar characteristics. AA, I-lB. and MY showed better growth performance, whereas maximum mortality was observed in the birds of SB thus indicating poor resistance to the diseases.Item type | Current location | Collection | Call number | Status | Date due | Barcode | Item holds |
---|---|---|---|---|---|---|---|
Thesis | UVAS Library Thesis Section | Veterinary Science | 1000,T (Browse shelf) | Available | 1000,T |
This present study was performed to investigate the comparative growth performance of different broiler strains. The experimental birds from four different strains viz Arbor acre (AA), Hubbard (RB), Hybro (FlY), and Starbro (ST) were randomly divided into 4 treatment groups each having 14 birds to evaluate the best performing strain under the local environmental condition. All the chicks in each replicate were weighed and placed in individual litter floor pens with the provision of separate feeding and drinking equipment. Ad. Libitum feed and water was offered to the birds in each replicate with the provision of 24hours light. Commercial broiler starter feed was provided from 0-4 weeks and finisher from 5-6 weeks of age.
Room temperature and humidity percentage was recorded daily. Body weight, feed intake were recorded weekly. FCR was also calculated on weekly basis. And mortality was recorded as and when occurred.
At the end of the experiment two birds' one male and one female from each replicate were randomly selected to study slaughter parameters such as live weight, dressed weight and different organs weight (shank length, head weight, liver weight, gizzard weight, heart weight, intestine weight, intestine length, ceacal weight).
The daily temperature range was 24 C to 40 C and the humidity percentage was from 20 to 90 % throughout the experimental period. The overall data showed no significant difference (P<0.05) in weight gain, feed consumption and FCR values of four different broiler strains. However, consistently higher weight gain and feed consumption was observed in birds of strains AA. Where as comparable FCR values were
observed in birds of strains AA, RB and HY. However birds in strains SB showed lowest (P>0.05) weight gain and highest FCR.
Significant differences (P<0.05) were observed in live weight of male and female birds. Highest (P<0.05) live weight and dressed weight was observed in birds of SB strain. The highest dressing percentage was observed in birds of AA and HY strains.
The significant differences (P<0.05) were observed in head weight of female birds from different broiler strains, the head weight of the birds from HB was significantly (P< 0.05) higher compared to lower weight of AA. The significant difference (P<0.05) was observed in shank length of female of the group AA birds. There was no significance difference (P> 0.05) in the liver weight, gizzard weight, intestinal weight, intestinal length, and ceacal weight of birds from different broiler strains.
The trial indicated that all the broiler strains such as Arbor acre (AA), Hubbard (RB), Hybro (HY), and Starbro (SB) can be reared profitably and uniformly under our local environmental temperature. It is also evident from the data that each strain has its own peculiar characteristics. AA, I-lB. and MY showed better growth performance, whereas maximum mortality was observed in the birds of SB thus indicating poor resistance to the diseases.
There are no comments for this item.