An experiment was conducted to evaluate a breeder diet
containing a yeast culture as a means of improving the
reproductive performance of two genetically dissimilar lines
of turkey hens (designated as L and H). Two hundred hens of
lines L and H, 100 hens per line, were housed in a curtain
sided breeder house (10 hens/line/pen). Starting at 31 weeks
of age (WOA), the hens were fed either Corn-soy (CS) or Corn
soy+yeast (CS+Y,.5% Diamond V Mills "XP" yeast culture,
Saccharomyces cerevisiae) diets. Between 33 and 45 WOA, the
hens were mated inter se and from 45 to 51 WOA reciprocal line
matings were established. Hen reproductive parameters measured
between 31 and 51 WOA were, body weight (BW) change, feed
intake, feed per dozen eggs, egg production, egg size,
fertility, embryonic mortality, and hatchability of fertilized
eggs from 7 biweekly egg settings.
No differences (P>.05) were observed with yeast culture
supplementation of the diet for changes in BW, egg production,
egg weight, embryonic mortality, and hatchability of
fertilized eggs (n= 5 biweekly hatches) of either line. A
significant time by diet interaction was evident only in feed
intake. There was an improved (P<.05) hen fertility in line H
as a result of feeding the dietary yeast culture.
When reciprocal line crosses were established between 46
and 51 WOA, hatch of fertilized eggs (n= 2 biweekly hatches)
was substantially improved (p<.05) from hens fed the yeast
culture containing diet. The results of this study suggest
that there is a genetic factor associated with the feeding of
a diet containing a yeast culture to turkey breeder hens. / Graduation date: 1993
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/36107 |
| Date | 26 August 1992 |
| Creators | Hayat, Javed |
| Contributors | Savage, Thomas F. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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