scholarly journals Milk Composition, Ruminal Characteristics, and Nutrient Utilization in Dairy Cows Fed Partially Hydrogenated Tallow

1993 ◽  
Vol 76 (1) ◽  
pp. 183-196 ◽  
Author(s):  
J.K. Drackley ◽  
J.P. Elliott
Keyword(s):  
Dairy Cows ◽  
Nutrient Utilization ◽  
Milk Composition

scholarly journals Effect of essential oil supplement on milk yield and composition of lactating dairy cows

Krmiva ◽  
2017 ◽  
Vol 59 (1) ◽  
pp. 15-19
Author(s):  
Robert Tóthi ◽  
Tomas Tóth ◽  
Mónika Körmöndi ◽  
Anet Tkovács ◽  
Éva Csavajda ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Production Control ◽  
Dairy Farm ◽  
Experimental Period ◽  
Nutrient Utilization ◽  
Milk Composition ◽  
Plant Materials ◽  
The Impact

Essential oils (EO), an important group of plant extracts, which are concentrated extracts of aromatic oily liquids from various plant materials obtained by steam distillation. Plant-derived EO is a useful means to improve efficiency of nutrient utilization in ruminants and reduce the impact of their production on the environment. In recent years, more research has been directed toward evaluating the potential of EO to improve performance in dairy cows but according to the results the effect of EO on milk production is not consistent. Therefore, the study evaluated the effects of supplementing a mixture of EO (oregano, thyme, citrus, cinnamon, ginger, curcuma, pepper and an organic carrier) in the diet of lactating Holstein Friesian dairy cows (n=46) in late lactation on the intake, milk yield and composition in a dairy farm experiment. The average DIM at the start of the experiment was 156 days. Experimental treatments consisted of a mixture of EO (2 g cow-1 day-1) inclusion in a total mixed ration. There was a 3-week long preliminary and a 7-week long experimental period in the trial. Milk production was recorded every day. Chemical analyses were made from the morning milked samples once a week. Supplementation of dairy cows with mixture of EO significantly (P<0.05) increased the dry matter intake (control: 26.9±1.49 kg DM day-1 vs. experimental: 27.3±0.95 kg DM day-1) but had no effect on milk production (control: 38.3±4.99 kg vs. experimental: 37.9±4.93 kg) and milk composition (fat, protein, lactose). Results show that an intake of 2 g cow-1 day-1 mixture of EO may increase the feed intake but does not influence milk yield and composition in late lactation.

Effect of Herbal Galactogogue (Sanjivani biokseera) on Milk Yield and Milk Constituents in Lactating Kankrej Cattle at Organised Farm

2019 ◽  
Vol 15 (02) ◽  
pp. 39-41
Author(s):  
H H Panchasara ◽  
A B Chaudhari ◽  
D A Patel ◽  
Y M Gami ◽  
M P Patel
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Milk Composition ◽  
Nutritional Requirements ◽  
Not Given ◽  
Distinct Effect ◽  
Lactating Dairy Cows ◽  
Group I ◽  
Effect Of Feeding

The study was conducted to evaluate the effect of feeding herbal galactogogue preparation (Sanjivani biokseera) on the milk yield and milk constituents in lactating Kankrej cows. Thirty-two lactating Kankrej cows in their 1st to 6th lactation were taken for the experiment from 3 days after calving up to 52 days postpartum. All the animals were fed as per the standard seasonally available roughages and concentrates to meet their nutritional requirements. The cows were randomly divided into two uniform groups of 16 cows in each according to initial milk yield and milk composition. The animals in group-I were not given any supplement and served as control. The animals in group-II were given Sanjivani biokseera (Naturewell Industries) @ 60 g per day for 1-month, commencing 3 days after calving, in addition to the usual feeds/fodders. A clear difference was observed in milk yield from day 8 onward of experiment between groups with significant (plessthan0 0.05) higher values from day 16-52 in cows fed herbal galactogogue as compared to control, but no such distinct effect on milk constituents was observed on day 52 when analyzed. The use of herbal galactogogue significantly (p lessthan 0.05) increased the overall average of 52 days milk production, which was 9.34 ± 0.21 lit/day in supplemented as compared to 7.75 ± 0.26 lit/day in control animals. It was concluded that herbal galactogogue (Sanjivani biokseera) could increase milk yield in lactating dairy cows through its galactopoetic property and improved rumen environment.

scholarly journals Short communication: Effects of dietary addition of N-carbamoylglutamate on milk composition in mid-lactating dairy cows

2018 ◽  
Vol 101 (12) ◽  
pp. 10985-10990 ◽  
Author(s):  
F.F. Gu ◽  
S.L. Liang ◽  
Z.H. Wei ◽  
C.P. Wang ◽  
H.Y. Liu ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Short Communication ◽  
Milk Composition ◽  
Lactating Dairy Cows ◽  
Communication Effects

The Effect of Concentrate Type and Supplementary Lactic Acid or Soya-Oil on Milk Production in Dairy Cows Offered Restricted or Extensively Fermented Grass Silages

1994 ◽  
Vol 1994 ◽  
pp. 38-38
Author(s):  
J G Doherty ◽  
C S Mayne
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Milk Composition ◽  
Fresh Weight ◽  
Single Strain ◽  
High Fibre ◽  
Soyabean Meal ◽  
High Starch ◽  
Aliphatic Carboxylic Acids

Several studies have shown increased silage dry-matter intake (SDMI) and improved milk fat concentrations in dairy cows offered restricted fermented grass silages compared to more extensively fermented silages. A recent study suggested that differences in silage intakeper serather than an alteration in rumen fermentation may be responsible for the changes in milk composition observed in the previous studies (Doherty and Mayne, 1993). The aim of the present study was to examine the effect of changes in concentrate composition on milk production parameters in dairy cows offered grass silages of contrasting fermentation type.Two direct cut grass silages were prepared using either an inoculant, containing a single strain ofLactobacillus plantarum, (Ecosyl, 3 1/t fresh weight, Zeneca Products Ltd) or a mixture of aliphatic carboxylic acids (Maxgrass, 6 1/t fresh weight, BP Chemicals Ltd). Two concentrates (high starch or high fibre) were formulated containing either: barley, 300; wheat, 355; and soyabean-meal, 270 g/kg (high starch) or unmolassed sugar-beet pulp, 555; citrus pulp, 100; and soyabean-meal, 270 g/kg (high fibre).

scholarly journals Effect of heat stress on milk production and its composition of Holstein Friesian crossbred dairy cows

2016 ◽  
Vol 2 (2) ◽  
pp. 190-195 ◽  
Author(s):  
Mahmud Al Reyad ◽  
Md Abid Hasan Sarker ◽  
Md Elias Uddin ◽  
Raihan Habib ◽  
Md Harun Ur Rashid
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Milk Yield ◽  
Management Practices ◽  
Management Strategies ◽  
Dairy Farm ◽  
Milk Composition ◽  
Mustard Oil ◽  
Holstein Friesian ◽  
Significant Difference

The aim of this research was to observe the effect of heat stress on milk yield and milk compositions of Holstein Friesian crossbred (HF) dairy cows. To fulfill the objectives, a total of 9 Holstein Friesian crossbred cows were selected for this study. Green grasses (German, Para) were supplied adlibitum and concentrate feeds (mixture of wheat bran, rice polish, mustard oil cake, di-calcium phosphate and salt) were supplied at the rate of 2.0 kg/day/cow. Management practices for all the cows were similar following the BAU Dairy farm practices. Data were collected on milk yield (l/h/d), relative humidity (%) and barn temperature (0C). The obtained temperature humidity index (THI) of July, August, September and October were 84.95, 81.99, 81.40 and 79.57, respectively. The highest THI was found in July which indicated higher heat stress during this month. A significant difference (p<0.05) in milk yield of cows was found among different months of July to October. The highest milk yield (6.10±0.50 l/h/d) was found in October among observed months. The compositions of milk such as total solids (TS), solids-not-fat (SNF), fat, protein, lactose, and ash also differed significantly (p<0.01). The highest values (%) of TS, SNF, fat, protein, lactose and ash content of milk were found in October as 12.63, 8.80, 3.83, 3.69, 4.39 and 0.72, respectively and lowest values (%) were in July as 12.20, 8.50, 3.71, 3.50, 4.30 and 0.69, respectively due to the high THI value. From these results, it is concluded that heat stress has strong effect on milk yield and milk composition of HF cows in Bangladesh. Management strategies are needed to minimize heat stress and attain optimal dairy animal performance.Asian J. Med. Biol. Res. June 2016, 2(2): 190-195

scholarly journals Effects of dietary betaine on milk yield and milk composition of mid-lactation Holstein dairy cows

2012 ◽  
Vol 95 (11) ◽  
pp. 6557-6562 ◽  
Author(s):  
S.E. Peterson ◽  
P. Rezamand ◽  
J.E. Williams ◽  
W. Price ◽  
M. Chahine ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Milk Composition ◽  
Holstein Dairy Cows

The use of short-term secretion rate measurements for estimating the milk production of suckler cows

1978 ◽  
Vol 45 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Y. L. P. Le Du ◽  
R. D. Baker ◽  
J. M. Barker
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Milk Composition ◽  
Secretion Rate ◽  
Short Term ◽  
Beef Cow ◽  
Total Milk ◽  
Fat Yield ◽  
Good Agreement

SummaryTwo experiments with dairy cows and one with suckler cows and their calves were conducted to examine the use of secretion rate measurements for estimating total milk production. In the first experiment both 4- and 6- h intervals between measurements gave similar estimates of total 7-d milk yield. The second experiment compared estimated and measured milk composition as well as yield. Milk and solids-not-fat yields were underestimated with dairy cows as a result of an extended milking interval before measurement. However, fat yield was overestimated, indicating that all residual milk was not removed at the first oxytocinaided milking. It was concluded that for the beef cow, previous interval effects would be eliminated by the frequency of calf suckling, but that residual milk effects might cause a 3–6% and a 16% overestimation of milk and fat yields respectively.In the third experiment, the milk yield of suckler cows was estimated from measurements of secretion rate and from changes in calf weight; good agreement was obtained provided there were at least 3 consecutive controlled sucklings.

Sign in / Sign up

Export Citation Format

Share Document