Most of the feed required for poultry production in
the Republic of Yemen is imported from Europe. Sometimes,
feed shipments arrive later due to lack of hard currencies
to pay for the feed or to pay the freight charges. Yemeni
broiler producers in such cases feed their birds a single
feed ingredient or a mixture of ingredients until feed
arrives.
Five experiments were conducted to simulate feed
shortage situations. As a single ingredient, barley is the
grain of choice in case of feed shortages. When broilers
were switched to corn-soy after the single ingredient
diets, the compensatory growth was correlated with the
severity of reduced growth.
Feeding diets with a mixture of faba beans + sorghum
grain with or without 7% herring meal for 21 and 49 days,
respectively, reduced significantly (P<.05) mean body
weight, total feed consumed, feed efficiency and apparent
protein efficiency ratio.
Feeding wheat bran at 10-15% with adjustment for protein
and energy from day-old to 49 days of age resulted in
significantly (P<.05) improved mean body weights compared to
the control broilers. Increasing wheat bran levels further
gradually reduced body weight and feed consumption.
Abdominal fat increased significantly (P<.05) when wheat
bran inclusion exceeded 20 percent.
Cellulase supplementation did not show any significant
interaction with wheat bran in all the measured parameters.
Supplementing protease to wheat bran diets significantly
(P<.05) reduced mean body weight, feed consumption and the
feed conversion in broilers. These dramatic effects were
proportionally ameliorated by increasing the levels of wheat
bran. / Graduation date: 1991
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/37516 |
| Date | 07 February 1991 |
| Creators | Modhish, Abdulmalek M. |
| Contributors | Nakaue, Harry S. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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