Effect of broiler breeder age on pancreas enzymes activity and digestive tract weight of embryos and chicks
A study was carried out to evaluate the effect of broiler breeder age on the development of the digestive tract of embryos and chicks. Fertilized eggs Cobb from 30 and 60 week-old broiler breeder was utilized in this experiment. The results showed that eggs from older (60 weeks of age) broiler breeders were heavier (p = 0.001) than those from younger (30 weeks of age) broiler breeder. In addition, older broiler breeder had larger (p = 0.001) embryos showing a higher yolk sac (p = 0.001) and higher gastrointestinal tract relative weight (p = 0.007) than those from younger broiler breeder. The activities of pancreatic lipase and trypsin enzymes were also higher in embryos from older broiler breeder than those from younger broiler breeder (p = 0.001 and p = 0.002, respectively). Nevertheless, at the seven-day-old chick, no difference was observed in relative weight of gastrointestinal tract or pancreatic lipase and trypsin activities between older and younger broiler breeder age. However chicks from older broiler breeder were heavier than those from younger broiler breeder (p = 0.005). These data suggest that broiler breeder age is important on grower and on the development of the gastrointestinal tract and pancreatic lipase and trypsin activities of embryo. However after one week of hatching the morphophysiological difference disappear.
Main Authors: | Maiorka,A, Santin,E, Silva,AVF, Routman,KS, Pizauro Jr.,JM, Macari,M |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Fundacao de Apoio a Ciência e Tecnologia Avicolas
2004
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100003 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Intestinal and pancreas enzyme activity of broilers exposed to thermal stress
by: Routman,KS, et al.
Published: (2003) -
Effect of Broiler Breeder Age on the Intestinal Mucosa Development of the Embryos at 20 Days of Incubation
by: Maiorka,A, et al.
Published: (2016) -
Effect of Broiler Breeder Age and Glutamine Supplementation on the Development of the Intestinal Mucosa of 7-Day-Old Chicks
by: Maiorka,A, et al.
Published: (2016) -
Breeder age and bone development in broiler chicken embryos
by: Alfonso-Torres,K.A., et al.
Published: (2009) -
Egg traits and physiological neonatal chick parameters from broiler breeder at different ages
by: Luquetti,BC, et al.
Published: (2004)