Graduate Thesis Or Dissertation

 

Management of stockpiled forages and optimal use of supplements by beef cattle while consuming low-quality forages Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/dr26z099f

Descriptions

Attribute NameValues
Creator
Abstract
  • Three studies were conducted to evaluate: 1) rotationally grazed forage for late-summer stockpiling; 2) effects of lactation on self-fed supplement intake; and 3) influence of cow age on hand-fed supplement intake. For the first study, treatments consisted of non grazed, 2X and 3X grazed. Crude protein of forage grazed 3X was greater (P<.10) than non-grazed. Yield of non-grazed forage was greater (P<.10) than forage grazed 2X and 3X. Non-grazed forage displayed the greatest stockpiled yield and grazing influenced quality of stockpiled forage to a small magnitude. Treatments for the second study consisted of non, mid, and late-lactation on two experimental diets. Late-lactation cow BW change was less (P<.10) than non-lactating in both experiments and less (P<.10) than mid-lactating cows in Exp. 1 only. Forage intake for late-lactating cows was less (P<.10) than mid-lactating cows in Exp. 1 and tended to be greater (P=.13) than non-lactating cows in Exp. 2. Self-fed supplement intake was highly variable but not influenced by lactation. Treatments for the third study consisted of five age groups. In yr 1, weight change at d 57 for 11-yr cows was greater (P<.10) than 5-yr cows. In yr 2, weight change at d 28 for 8-yr cows was less (P<.10) than 4, 6, and 10-yr cows and 4-yr cows was greater (P<.10) than 6, 10, and 12-yr cows. At d 56, weight change for 4-yr cows was greater (P<.10) than 6, 8, 10 and 12-yr cows and 12-yr cows was less (P<.10) than 6 and 10-yr cows. Weight change at calving for 4-yr cows was greater (P<.10) than 6, 8, and 12-yr cows. Forage intake of 10-yr cows was greater (P<.10) than 8 and 4-yr cows. Supplement intake of 4-yr cows was greater (P>.10) than 8, 10, and 12-yr cows. Six-yr cows had greater (P<.10) supplement intakes than 12 and 8-yr cows. Three and 4-yr cows displayed the best performance and 4-yr cows consumed the greatest amount of supplement.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 8-bit Grayscale) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Kaylee Patterson (kdpscanner@gmail.com) on 2012-09-05T21:47:16Z No. of bitstreams: 1 SuverlyNormanA2000.pdf: 5605745 bytes, checksum: c6f3c1e427c335cc1cc01328c793cdfb (MD5)
  • description.provenance : Made available in DSpace on 2012-09-06T18:31:21Z (GMT). No. of bitstreams: 1 SuverlyNormanA2000.pdf: 5605745 bytes, checksum: c6f3c1e427c335cc1cc01328c793cdfb (MD5) Previous issue date: 1999-12-14
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-09-06T18:27:12Z (GMT) No. of bitstreams: 1 SuverlyNormanA2000.pdf: 5605745 bytes, checksum: c6f3c1e427c335cc1cc01328c793cdfb (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-09-06T18:31:21Z (GMT) No. of bitstreams: 1 SuverlyNormanA2000.pdf: 5605745 bytes, checksum: c6f3c1e427c335cc1cc01328c793cdfb (MD5)

Relationships

Parents:

This work has no parents.

In Collection:

Items