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Effects of Trace Mineral Source and Concentration on Production Parameters Throughout One Cow-Calf Production Cycle.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Effects of Trace Mineral Source and Concentration on Production Parameters Throughout One Cow-Calf Production Cycle./
作者:	Hallmark, Harrison.
面頁冊數:	1 online resource (57 pages)
附註:	Source: Masters Abstracts International, Volume: 84-11.
Contained By:	Masters Abstracts International84-11.
標題:	Animal sciences. -
電子資源:	click for full text (PQDT)
ISBN:	9798379581367

Effects of Trace Mineral Source and Concentration on Production Parameters Throughout One Cow-Calf Production Cycle.
Hallmark, Harrison.

Effects of Trace Mineral Source and Concentration on Production Parameters Throughout One Cow-Calf Production Cycle. - 1 online resource (57 pages)

Source: Masters Abstracts International, Volume: 84-11.

Thesis (M.Agr.)--Colorado State University, 2023.

Includes bibliographical references

An experiment was conducted to evaluate the effects of Cu, Zn, and Mn supplementation on mineral status, production parameters, and cattle performance in a rangeland environment throughout a one -year period in eastern Colorado.One hundred and eighty multiparous crossbred (Angus and Angus x Hereford) beef cows were blocked by body weight, age, and gestational status and randomly assigned to 1 of 3 free-choice mineral treatments (n = 60 cows per treatment). Treatments were then assigned to 1 of 9 replicates (n=20 cows per replicate), resulting in 3 replicates per treatment. Treatments consisted of, 1) 1X NASEM (2016) sulfate base source, 2) 1X NASEM (2016) Intellibond source, or 3) 0.5X NASEM (2016) Intellibond source. Treatments 1 (1X Sulfate) and 2 (1X Intellibond) contained 1,000, 2,000, and 3,000 mg/kg DM of Cu, Mn, and Zn, respectively. While treatment 3 (0.5X Intellibond) contained 500, 1,000, and 1,500 mg/kg DM of Cu, Mn, and Zn. All free-choice mineral supplements were formulated to provide 0.15% supplemental S, 15 mg/kg Co from Co carbonate, and 55 mg/kg I from Ca iodate (Hubbard Feeds; Mankato, MN). Supplement consumption was formulated for 113 g·animal-1 ·d-1 . Supplement intakes were determined every 28 d. Liver biopsies and blood samples were obtained before the experiment was initiated (d -45), after calving (d 158 and 159), and after weaning (d 294) at the end of the first production year. Each replicate was rotated to a different pasture every 2 to 4 weeks to minimize pasture effects. Cows were weighed during each liver biopsy event and at each scheduled handling events. A two-day calf weaning weight was collected during weaning (d 260 and 261). Over the first year of the experiment, cow BW, BCS, mineral status, mineral intake, and calf weaning weight were collected. There was no impact of treatment on any of the response variables measured during the first year of the experiment.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379581367Subjects--Topical Terms:

1178863
Animal sciences.
Subjects--Index Terms:

Cow/CalfIndex Terms--Genre/Form:

554714
Electronic books.

Effects of Trace Mineral Source and Concentration on Production Parameters Throughout One Cow-Calf Production Cycle.
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