Evaluation of postpartum udder characteristics of F1 cows sired by Angus, Gray Brahman, Gir, Indu-Brazil, Nellore and Red Brahman bulls /
.32 for teat diameter traits. Estimated repeatabilities
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | .32 for teat diameter traits. Estimated repeatabilities (IB), Nellore (N) and Red Brahman (RB) bulls was used to (US). These characters were also evaluated with all parity 1. TDA increased from parity one through parity 10, followed 12 records excluded (n = 1006) and with all parity 10, I I and 12 records excluded (n = 929). IB cross cows had the artificially inseminate Hereford cows for four years. The F, as indicated by the lowest udder support scores. Grouping at least nine records (n = 813), TLA increased from parity by a slight decrease for parity I 1. US tended to decrease Descriptively, after attempting to remove the selection diameter average (TLA and TDA, respectively), front teat effect of culling by eliminating all cows that did not have estimated on each quarter of each cow, and a subjective udder for all characters analyzed except RTDA, RRTD, and LRTD. from 1985 through 1996. Teat length and teat diameter were from parity one through parity I 1. Estimated heritabilities front teat length and diameter (LFTL and LFTD), right front G, IB, N and RB resulted in no significant difference between heifer offspring of these matings were bred to calve annually length and diameter (LRTL and LRTD) and right rear teat length and diameter (RRTL and RRTD) and udder support score length and diameter average (FTLA and FTDA, respectively), longest teat lengths and largest teat diameters (P < .05) in most analyses; N cross cows had the shortest teat lengths and of RB and GB did not change these results. Grouping of GB, one through parity seven and then decreased through parity I ranged from .51 to .57 for teat length traits, and from .42 ranged from .65 to .83 for teat length traits, from .01 to rear teat length and diameter average (RTLA and RTDA), left records (n = 1016) were evaluated for teat length and repeatability for US were .5 6 and .3 5, respectively. Semen from Angus (A), Gray Brahman (GB), Gir (G), Indu-Brazil sire breed by parity of cow interaction (P < .05) was found sired cows had the most pendulous and(or) broken down udders smallest teat diameters. N-sired cows had the tightest support score was assigned to each cow postpartum. Calving teat length and diameter (RFTL and RFTD), left rear teat this group and A cross cows for any character analyzed. A to .54 for teat diameter traits. Estimated heritability and udders as indicated by the highest udder support scores; IB |
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| Item Description: | "Major subject: Animal Breeding". In title, numerals are used. Vita. |
| Physical Description: | xiii, 119 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 110-118. |