Responses of early lactating dairy Holstein cows to diet containing acid treated lucerne silage

2007 ◽  
Vol 2007 ◽  
pp. 189-189
Author(s):  
M. Danesh Mesgaran ◽  
M. Behgar ◽  
H. Nasirimoghaddam ◽  
H. Kermanshahi ◽  
M. Hassanpour Fard Khorashad
Keyword(s):  
Formic Acid ◽  
Protein Degradation ◽  
Weather Condition ◽  
Holstein Cows ◽  
Inorganic Acids ◽  
Extensive Degradation ◽  
Silage Additives ◽  
Condition Field ◽  
Daily Milk

Ensiling of forage rather than drying for hay become more common in many areas because of weather condition, field losses and other risks. Lucerne protein is subjected to extensive degradation during ensiling. Organic and inorganic acids as silage additives could decrease protein degradation of lucerne during ensiling. Cows fed on formic acid treated lucerne silage produced more daily milk and milk per ton of harvested forage. The objective of this study was to determine the effects of diet containing untreated (U) or treated (T) lucerne silage with formic and sulphuric acids on performance of early lactating dairy Holstein cows.

scholarly journals Modeling Daily Milk Yield in Holstein Cows Using Time Series Analysis

1990 ◽  
Vol 73 (2) ◽  
pp. 539-548 ◽  
Author(s):  
H.A. Deluyker ◽  
R.H. Shumway ◽  
W.E. Wecker ◽  
A.S. Azari ◽  
L.D. Weaver
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
Milk Yield ◽  
Holstein Cows ◽  
Series Analysis ◽  
Daily Milk Yield ◽  
Daily Milk

scholarly journals Is rumenocentesis a safe technique to collect rumen fluid in dairy cows?

2018 ◽  
Vol 69 (3) ◽  
pp. 1135 ◽  
Author(s):  
N. PANOUSIS ◽  
G. KITKAS ◽  
G. E. VALERGAKIS
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Rumen Fluid ◽  
Small Diameter ◽  
Dairy Farm ◽  
Holstein Cows ◽  
Short Term ◽  
Safe Technique ◽  
Daily Milk Yield ◽  
Daily Milk

Subacute ruminal acidosis is a major issue in dairy cattle and a definite diagnosis is only established by measuring the rumen fluid pH, most credibly collected by rumenocentesis. However, due to its invasive nature, there is still some debate whether it is a safe method or poses risks for cows’ health and welfare. The aim of the study was to retrospectively evaluate the safety of rumenocentesis as a technique to obtain rumen fluid in dairy cows. Results were derived from 2 studies. In study 1, rumenocentesis was performed in 153 Holstein cows from 12 herds, once, between 10 and 90 days in milk (DIM). In study 2, 83 Holstein cows from a dairy farm were repeatedly subjected to rumenocentesisat 30, 90 and 150 DIM. From the 83 cows that were initially enrolled, 8 were culled before the end of the study for reasons irrelative to rumenocentesis; therefore, 236 rumenocenteses were actually performed in study 2 (3 times in 75 cows, twice in 3 cows and once in 5 cows). All cows were monitored for 10 days after rumenocentesis for presence of complications. In addition, daily milk yield was automatically recorded for each cow in study 2 to detect any possiblepost-rumenocentesis short-term reduction of milk yield. Minor only complications were recorded in 7 cases: in 4/153 (2.61%) and 3/236 (1.27%) rumenocenteses in studies 1 and 2, respectively. Small diameter abscesses in 6 cows (3 in study 1 and 3 in study 2) and a larger one in 1 cow in study 1 were observed. The 3 small abscesses in study 2 were all recorded after the 1st rumenocentesis, at DIM 30. All 7 cases were resolved spontaneously within two weeks. Moreover, short-term daily milk yield of study 2 cows was not affected by rumenocentesis. The conclusion is that rumenocentesis is a safe technique to collect small volume of rumen fluid for SARA diagnosis, which does not compromise cows’ health and welfare when appropriately performed.

An evaluation of the concentrate sparing effect of four silage additives

1992 ◽  
Vol 1992 ◽  
pp. 153-153
Author(s):  
C S Mayne
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Formic Acid ◽  
Animal Performance ◽  
Bacterial Inoculants ◽  
Milk Output ◽  
Sparing Effect ◽  
Silage Additives ◽  
Constant Yield ◽  
Potential Concentrate

Recent research at this Institute has shown marked improvements in animal performance following the use of bacterial inoculants as silage additives (Gordon, 1989 and Mayne, 1990). Other studies with additives based on antimicrobial carboxylic salts (Maxgrass - BP Chemicals) have also shown large improvements in animal performance relative to untreated silage (Chamberlain et al, 1990). However with constraints on milk output in the form of milk quotas, it is important to investigate the potential “concentrate sparing” effect of these differing silage additives, whilst producing a constant yield of milk constituents.Five silages with a range of fermentation characteristics were produced by ensiling first regrowth herbage either untreated (C) or treated with four differing silage additives including: an inoculant of lactic acid bacteria (I); an inoculant of lactic acid bacteria plus enzymes (I+E); formic acid applied at 2.54 litres/t grass (FA) and antimicrobial carboxylic acids applied at 5.95 litres/t grass (CA).

scholarly journals Selection of a Mathematical Model to Generate Lactation Curves Using Daily Milk Yields of Holstein Cows

1995 ◽  
Vol 78 (11) ◽  
pp. 2507-2513 ◽  
Author(s):  
L. Sherchand ◽  
R.W. Mcnew ◽  
D.W. Kellogg ◽  
Z.B. Johnson
Keyword(s):  
Mathematical Model ◽  
Holstein Cows ◽  
Selection Of ◽  
Daily Milk

scholarly journals Influence of Temperature‑Humidity Relations During Years on Milk Production and Quality

2017 ◽  
Vol 65 (1) ◽  
pp. 211-218 ◽  
Author(s):  
Renáta Toušová ◽  
Jaromír Ducháček ◽  
Luděk Stádník ◽  
Martin Ptáček ◽  
Sylvana Pokorná
Keyword(s):  
Protein Content ◽  
Milk Production ◽  
Air Temperature ◽  
Somatic Cells ◽  
Climatic Conditions ◽  
Holstein Cows ◽  
Air Humidity ◽  
Relative Air Humidity ◽  
Daily Milk Production ◽  
Daily Milk

The aim of this study was to evaluate influence of climatic conditions represented by daily air temperature and relative air humidity on indicators of Holstein cows’ milk quality and production. The first dataset represented individual milk production in day of milk performance recording (milk kg, fat %, protein %, and somatic cells count thous.*ml−1). The second dataset represented total daily milk characteristics of herd (milk kg, fat %, protein % and somatic cells count thous.*ml−1). A total of 654 Holstein cows were observed and evaluated. Both datasets were evaluated in relation to selected external influences (year, month, average daily air temperature, and average daily relatively air humidity). Statistical analysis was performed using SAS 9.3, and UNIVARIATE, REG and GLM procedure. Three groups of daily air temeperature (< 4.4 °C; 4.4 – 13.2 °C; > 13.2 °C), and daily relative air humidity (< 65.3 %; 65.3 – 80.4 %; > 80.4 %) were conducted for evaluation. Significant (P < 0.05) linear regressions were computed among daily air temperature and all milk production indicators, except of somatic cells count attribute. The highest individual daily milk production (35.94 kg, P < 0.01), and protein content (3.41 %, P < 0.01) were achieved with the highest average daily air temperature. Opposite results were observed for milk yield of herd as well as protein content. Average daily relative air humidity had lower influence on individual and bulk milk samples. The better results were achieved for both datasets (individual and bulk samples) in groups (65.3 – 80.4 %; > 80.4 %) of average daily relative air humidity. Obtained results point out importance of outdoor climatic parameters monitoring and preventive measures of climatic conditions in the stable.

scholarly journals The Effect of Ambient Temperature on Conception and Milk Performance in Breeding Holstein Cows

2017 ◽  
Vol 65 (5) ◽  
pp. 1515-1520 ◽  
Author(s):  
Kristýna Klementová ◽  
Radek Filipčík ◽  
Martin Hošek
Keyword(s):  
Ambient Temperature ◽  
Dairy Cows ◽  
Milk Yield ◽  
Winter Season ◽  
Conception Rate ◽  
Holstein Cows ◽  
Experimental Population ◽  
Conception Rates ◽  
Daily Milk Yield ◽  
Daily Milk

The aim of this study was to identify the effect of ambient temperature and season of the year on conception difficulties in Holstein cattle. The experiment was conducted on the School farm in Žabčice. Data were collected from July 2016 to January 2017. Experimental population counted 263 breeding Holstein cows, which were inseminated during the observation period. Results of this study confirmed the effect of temperature and season on conception rates in dairy cows. In winter season, successful conception was recorded in 56.36 % of cows in average ambient temperature 1.48 °C, in summer season the conception rate was only 40.43 % in average daily temperature 18.96 °C. A more detailed analysis revealed the highest conception rates in the dairy cows in January (88.24 %) and February (91.67 %). On the contrary, the worst results were recorded in September (22.73 %) and October (28.57 %). Evaluation of conception rate according to ambient temperature intervals showed best results for the temperatures below 5 °C. A part of the study was also evaluation of an association between daily milk yield and conception rate. This hypothesis cannot be conclusively confirmed, because milk yield was mostly similar in both groups (pregnant and non‑pregnant) on the days of insemination. The effect of lactation order and mean daily milk yield on the conception rate in cows was not confirmed.

scholarly journals The effect of bale density and addition of formic acid on the in situ dry matter and crude protein degradation of lucerne, red clover and red fescue silages

2014 ◽  
Vol 23 (2) ◽  
pp. 177-184 ◽  
Author(s):  
C. Purwin ◽  
M. Fijałkowska ◽  
B. Kowalik ◽  
H. Skórko-Sajko ◽  
Z. Nogalski ◽  
...  
Keyword(s):  
Formic Acid ◽  
Protein Degradation ◽  
Crude Protein ◽  
Dry Matter ◽  
Red Clover ◽  
Red Fescue

Chemical characteristics of Lucerne silage treated by urea and sulphuric acid

2007 ◽  
Vol 2007 ◽  
pp. 229-229
Author(s):  
Malek Hoseein Delavar ◽  
Mohsen Daneshe Mesgaran ◽  
Mohhamad Hassan Jahandar
Keyword(s):  
Chemical Composition ◽  
Sulphuric Acid ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Weather Condition ◽  
Buffering Capacity ◽  
High Moisture ◽  
Before And After ◽  
Silage Additives ◽  
Stem Structure

Although Lucerne hay is common using method of Lucerne forage but weather condition always is not suitable to provide it. Besides Lucerne forage due to high buffering capacity because of the tubular and hollow stem structure, low soluble sugar content, high moisture and high protein content is the most difficult to ensile. Therefore, response to silage additives (such as urea and sulphuric acid) or preservatives may be great with legume forage. Experimental evidence indicates that there is main different about chemical composition of Lucerne silage before and after ensiling. This study was conducted to compare of Chemical composition of Lucerne silages treated without or by urea and sulphuric acid.

PSVIII-14 Effect of Certillus, a direct-fed microbial, on milk yield, milk components, and feed intake in primi- and multiparous lactating Holstein cows

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 426-427
Author(s):  
Excel Rio S Maylem ◽  
Martina Vargiu ◽  
Caleb Melton ◽  
Jesse Thompson ◽  
John O’Neill ◽  
...  
Keyword(s):  
Milk Production ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Repeated Measures ◽  
Milk Fat ◽  
Holstein Cows ◽  
Fat Percentage ◽  
Milk Components ◽  
Daily Milk Production ◽  
Daily Milk

Abstract To determine the effect of Certillus on milk production, milk components and feed efficiency, primiparous (n = 13) and multiparous (n = 12) Holstein cows were assigned to one of two dietary groups starting from 8 to 120 days of lactation. The controls (n = 13) received regular TMR ration, and treated cows (n =12) received control TMR plus 2 x 109 cfu/head of Certillus (Church & Dwight Co., Inc., Waukesha, WI). Cows were housed in an open-air free-stall barn with 16 Insentec electronic feeders (8 feeders/group) to record daily feed events and intake (DMI). Cows were provided with ad libitum TMR fed twice daily and were milked twice daily. Milk samples were taken weekly during successive a.m./p.m. milkings and analyzed for percentage milk fat, protein, lactose, and milk urea nitrogen (MUN). Data were analyzed using a repeated-measures 2 x 2 factorial ANOVA. Daily milk production (4%FCM) was influenced (P &lt; 0.05) by treatment x parity, week and parity, averaging 11% greater (P &lt; 0.05) in Certillus-fed than control cows. Milk fat percentage increased (P &lt; 0.005) from 4.02 to 4.41 + 0.09% with Certillus feeding. Milk lactose was influenced (P &lt; 0.05) by week and treatment x parity. Milk protein was affected by week (P &lt; 0.001) only. Certillus decreased (P &lt; 0.05) MUN levels such that MUN was 1.0 mg/dL greater (P &lt; 0.001) in Certillus-fed than control cows. Feed intake was reduced by 9% (P &lt; 0.01) and feed efficiency (kg 4%FCM/kg DMI) was improved by 14% (P &lt; 0.05) in Certillus-fed versus control cows. We conclude that Certillus may hold potential as an effective direct-fed microbial to increase feed efficiency and milk production.

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