English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Two experiments with 103 White Leghorn laying hens and one experiment with 95 female meat-type growing chicks were carried out. To these hens and chicks, one of 6 experimental diets containing crude protein from 16 to 28% and total digestible nutrients from 60 to 73% was fed for 18 days to 9 weeks. The birds were sacrificed on the schedule to determine abdominal fat content. Carcass fat content of part of them was also determined.Linear relationship between abdominal fat content (x%) and carcass fat content (y%) was observed, which can be well described by the following Equation 2.y=5.03+3.04x....(2)With this equation, carcass fat content, laborious to determine, can be estimated by abdominal fat content with high reliability.The decrease in dietary energy levels from 73% to 60% was effective to decrease abdominal fat content of both of laying hens and growing chicks. In agreement with the previous observations, the increase in dietary protein levels from 16% to 22 or 28% was effective to decrease abdominal fat content of growing chicks. However, in striking contrast, dietary protein levels had little effect on abdominal fat content of laying hens, suggesting the difference in protein or fat metabolism between laying hens and growing chick.

Effece of Dietary Energy and Protein Levels on Abdominal Fat Deposition of Laying Hens