+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Sustained-release boluses to supply trace elements and vitamins to calves



Sustained-release boluses to supply trace elements and vitamins to calves



Veterinary Journal 153(2): 221-224



Cylindrical rumen boluses of a size (55 mm length times 18 mm diameter, density 2.9 g cm-3) appropriate for ruminating calves over 75 kg liveweight were constructed. The mean daily nutrient releases from two rumen boluses measured in rumen-cannulated cows were 62 mg Cu, 0.56 mg Se, 1.08 mg Co, 1.14 mg I, 38 mg Mn and 55 mg Zn with vitamins 3140 IU A, 628 IU D-3 and 9 IU E. In a 123-day experiment with housed dairy calves given hay and a barley/soyabean meal mix, administration of two rumen boluses significantly increased plasma copper and blood glutathione peroxidase levels compared with unsupplemented control calves. There were similarly significant responses in a 143-day experiment with suckled beef-cross calves treated with two rumen boluses at grass. In both circumstances the basic diets provided inadequate allowances of both copper and selenium.

(PDF emailed within 0-6 h: $19.90)

Accession: 002973863

Download citation: RISBibTeXText

PMID: 12463408

DOI: 10.1016/s1090-0233(97)80043-3


Related references

Evaluation of a sustained release bolus to supply trace elements and vitamins to beef cattle. Animal Production in Australia Proceedings of the Australian Society of Animal Production 22: 133-136, 1998

Comparison of one or two sustained-release chromic oxide boluses for sheep to estimate fecal output in calves. Journal of Animal Science 79(Supplement 2): 140, 2001

Effects of sustained release boluses providing selenium and vitamin E on blood glutathione levels of cows and their calves. Animal Production 56(3): 466, 1993

Sustained release selenium boluses and zinc methionine trace mineralized salt blocks for stocker cattle. Journal of Animal Science 70(SUPPL 1): 301, 1992

Cu, Co and Se nutritive value of compound trace elements controlled-release boluses for grazing ruminants. Ying Yong Sheng Tai Xue Bao 11(2): 258-260, 2002

Study on the controlled-release boluses on trace elements for ruminants and their metabolism in rumen of goat. Research of Agricultural Modernization 21(1): 28-32, 2000

Study on the effect of controlled-release boluses of trace elements on milk yield and the quality of dairy cow. Research of Agricultural Modernization 21(2): 117-120, 2000

Growth and development of calves given diets with vitamins and a mixture of trace elements. Izvestiya Timiryazevskoi Sel' skokhozyaistvennoi Akademii (5): 132-144, 1979

Rearing calves on skimmed milk enriched with vitamins, antibiotics and trace elements. Allattenyesztes. 10: 53-59, 1961

The growth and development of calves in addition of vitamins and poly salt trace elements to the feed. Izvestiya Timiryazevskoi Sel'skokhozyaistvennoi Akademii (5): 137-144, 1979

Some serum parameters of first lactation cows in relation to their supply of macro and trace elements as well as of vitamins. Berliner und Munchener Tierarztliche Wochenschrift 120(5-6): 226-231, 2007

Investigations on some serum parameters of first lactating cows according to their supply with macro and trace elements as well as with vitamins. Berliner und Munchener Tierarztliche Wochenschrift 120(5/6): 226-231, 2007

Reaction cements as materials for the sustained release of trace elements into the digestive tract of cattle and sheep. I. Copper release. Journal of Veterinary Pharmacology and Therapeutics 8(4): 368-373, 1985