scholarly journals Common Hazards to Consider During Manufacturing of Feed for Beef and Dairy Cattle

EDIS ◽  
2018 ◽  
Vol 2018 (2) ◽  
Author(s):  
Taylor Langford ◽  
Matthew J. Hersom ◽  
Luiz Ferraretto ◽  
Antonio Faciola ◽  
Chad Carr ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Chemical Hazards ◽  
Cattle Feeds ◽  
Animal Sciences

This 6-page document provides a list of common hazards to consider in the manufacturing of cattle feeds. It discusses the importance of preventing hazards, methods of prevention, and common physical, biological, and chemical hazards. Written by Taylor Langford, Matthew Hersom, Luiz Ferraretto, Antonio Faciola, Chad Carr, and Jason Scheffler, and published by the UF/IFAS Department of Animal Sciences, March 2018.  http://edis.ifas.ufl.edu/an343

scholarly journals Hydrophobized Reversed-Phase Adsorbent for Protection of Dairy Cattle against Lipophilic Toxins from Diet. Efficiensy In Vitro and In Vivo

Toxins ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 256
Author(s):  
Alexander Sotnichenko ◽  
Evgeny Pantsov ◽  
Dmitry Shinkarev ◽  
Victor Okhanov
Keyword(s):  
Dairy Cattle ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Polyaromatic Hydrocarbons ◽  
Reversed Phase ◽  
Chemical Pollution ◽  
Lipophilic Toxins ◽  
Cattle Feeds

The steady growth of inflammatory diseases of the udder in dairy cattle forces us to look for the causes of this phenomenon in the context of growing chemical pollution of the environment and feeds. Within the framework of this concept, an analysis was made of the polarity level of the three toxic impurity groups, which are commonly present in dairy cattle feeds. These impurities are presented by mycotoxins, polyaromatic hydrocarbons (PAH) and persistent organic pollutants (POP). It has been determined that 46% of studied mycotoxins (n = 1500) and 100% of studied polyaromatic hydrocarbons (n = 45) and persistent organic pollutants (n = 55) are lipophilic compounds, prone to bioaccumulation. A comparative evaluation of the sorption capacity of four adsorbents of a different nature and polarity with respect to the simplest PAH, naphthalene and lipophilic estrogenic mycotoxin, zearalenone in vitro has been carried out. The highest efficiency in these experiments was demonstrated by the reversed-phase polyoctylated polysilicate hydrogel (POPSH). The use of POPSH in a herd of lactating cows significantly reduced the transfer of aldrin, dieldrin and heptachlor, typical POPs from the “dirty dozen”, to the milk. The relevance of protecting the main functional systems of animals from the damaging effects of lipophilic toxins from feeds using non-polar adsorbents, and the concept of evaluating the effectiveness of various feed adsorbents for dairy cattle by their influence on the somatic cell count in the collected milk are discussed.

MINERAL ANALYSES OF DAIRY CATTLE FEED IN THE UPPER FRASER VALLEY OF BRITISH COLUMBIA

1980 ◽  
Vol 60 (1) ◽  
pp. 177-183 ◽  
Author(s):  
E. B. CATHCART ◽  
J. A. SHELFORD ◽  
R. G. PETERSON
Keyword(s):  
British Columbia ◽  
Dairy Cattle ◽  
Trace Minerals ◽  
Cattle Feed ◽  
Cattle Feeds ◽  
Iron Manganese ◽  
Fraser Valley ◽  
Mineral Analyses

Analyses of five macro-minerals and six trace minerals in dairy cattle feeds revealed higher iron, manganese and copper means and lower sulphur and selenium means than comparable reported values for most feed categories. Cattle fed mainly forages may not be receiving enough sulphur and selenium although copper levels appear to be adequate.

Transfer of Fallout Cesium-137 from Soil to Dairy Cattle Feeds

1966 ◽  
Vol 30 (3) ◽  
pp. 416-417 ◽  
Author(s):  
James E. Johnson ◽  
Daniel W. Wilson ◽  
Willard L. Lindsay
Keyword(s):  
Dairy Cattle ◽  
Cesium 137 ◽  
Cattle Feeds

Determination of Cesium-137 and Related Sampling Problems of Dairy Cattle Feeds, 1962-1967

1968 ◽  
Vol 51 (4) ◽  
pp. 792-796
Author(s):  
G M Ward ◽  
J E Johnson ◽  
D L Whelan
Keyword(s):  
Dairy Cattle ◽  
Gamma Ray ◽  
Corn Silage ◽  
Gamma Ray Spectrometry ◽  
Alfalfa Hay ◽  
Cesium 137 ◽  
Cattle Feeds ◽  
The University ◽  
Sampling Problems

Abstract Samples of feeds fed to dairy cattle on the university farm were analyzed from 1962 to 1967 for fallout 137Cs by means of gamma-ray spectrometry. Maximum levels were observed in first-cutting alfalfa hay in 1963 (3600 pc/kg).Second and third cuttings each year were lower by factors of two to six. Levels declined each year after 1963 to barely detectable levels in mid-1967. Pasture forage or green-cut alfalfa contained concentrations of 137Cs similar to hay with the same seasonal and yearly patterns. Corn silage contained levels similar to later cuttings of hay. Grain mixes contained levels which were lower than forages by a factor of 10 in 1962-1963 but approached equal levels in subsequent years. The results indicated that sampling was much more important than radiation counting in explaining variation between sampling. The levels of 137Cs found in the feeds was readily explained in terms of observed patterns of fallout during this period.

scholarly journals The Value of Milk Fat

EDIS ◽  
2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
José Eduardo P. Santos ◽  
Albert De Vries
Keyword(s):  
Dairy Cattle ◽  
Somatic Cell ◽  
Milk Fat ◽  
Skim Milk ◽  
Fat Content ◽  
Economic Implications ◽  
Bacterial Counts ◽  
Fat Consumption ◽  
Management Factors ◽  
Animal Sciences

In the Southeast, milk is priced based on fat and skim milk value, with additional bonuses for somatic cell and bacterial counts. In recent years, butterfat has become more valuable. This 7-page document discusses some of the history behind the changes in milk fat consumption, management factors that influence milk fat content and yield by dairy cattle, and economic implications of changing fat content through the diet in two case scenarios. Written by José E. P. Santos and Albert De Vries, and published by the UF/IFAS Department of Animal Sciences, January 2019.  http://edis.ifas.ufl.edu/an350

scholarly journals Economic Selection Indices: The Best Tool for Dairy Cattle Selection

EDIS ◽  
2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Francisco Peñagaricano
Keyword(s):  
Dairy Cattle ◽  
Selection Index ◽  
Multiple Traits ◽  
Selection Indices ◽  
The Us ◽  
Animal Sciences ◽  
Economic Selection

An economic selection index combines multiple traits into a single value, facilitating the identification of the best animals. This new 3-page document discusses economic selection indices, their changes in the US, and a 2018 update. Written by Francisco Peñagaricano, and published by the UF/IFAS Department of Animal Sciences, March 2019.  http://edis.ifas.ufl.edu/an353

scholarly journals Detection of Escherichia coli in Postpartum Clinical Endometritis of Dairy Cattle by PCR

2021 ◽  
Author(s):  
D.B. Chetan Kumar ◽  
Leeba Chacko ◽  
K. Promod ◽  
K. Sumod
Keyword(s):  
Escherichia Coli ◽  
Dairy Cattle ◽  
Fusobacterium Necrophorum ◽  
Rrna Gene ◽  
E Coli ◽  
Cytological Smear ◽  
Highly Sensitive ◽  
Bacillus Spp ◽  
Polymerase Chain ◽  
Animal Sciences

Background: Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), Trueperella pyogenes (T. pyogenes), Klebsiella pneumoniae (K. pneumoniae), Bacillus spp. and Fusobacterium necrophorum (F. necrophorum) are the common bacterial agents isolated from postpartum endometritis in dairy cattle. The objective of the present study was to determine the association of E. coli with postpartum endometritis by polymerase chain reaction (PCR).Methods: The present study was conducted from September 2019 to January 2020 at Teaching Veterinary Clinical Complex, College of Veterinary and Animal Sciences, Pookode, Kerala and organised dairy farms in Wayanad district, Kerala. Endometrial cytobrush samples (n = 36) were collected by cytobrush technique at 28 to 35 days postpartum (dpp). 16S rRNA gene was employed for the identification of E. coli by PCR.Result: Upon evaluating endometrial cytological smear, 26 animals were positive for endometritis with more than 5% polymorphonuclear (PMN) cells. The prevalence of endometritis was 72.22 per cent (26/36). E. coli was detected in 12 samples by PCR. The study suggested PCR as a highly sensitive method for the identification of E. coli associated with endometritis in postpartum dairy cows.

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