scholarly journals Untreated and formaldehyde treated skimmilk powder as a protein supplement for dairy cows

1978 ◽  
Vol 50 (2) ◽  
pp. 155-165
Author(s):  
Liisa Syrjälä ◽  
Esko Poutiainen ◽  
Visa-Heikki Koskela
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Powder ◽  
Live Weight ◽  
Feed Consumption ◽  
Protein Supplement ◽  
Deficient Diet ◽  
Normal Ranges ◽  
Protein Deficient Diet ◽  
Positive Results

Twenty four high producing dairy cows were used in an experiment in which the value of fat free spray-dried milk powder, untreated or formaldehyde treated (0.4 g formaldehyde/100 g crude protein), was studied as a protein supplement in a protein deficient diet. The groups were: 1) Protein shortage group, 1) Untreated milk powder group and 3) Formaldehyde treated milk powder group. Rations were made for all groups from hay, grass silage, barley, oats and mineral and vitamin mixtures according to nutrient requirements excepting that of protein. In the rations of the protein shortage group 25 % of the DCP required for milk production was omitted. In the other groups this deficiency was filled with untreated or formaldehyde treated milk protein. The experiment lasted 15 weeks. The feed consumption and utilization, milk production and composition, and blood contents were determined. In eliminating the protein deficiency with fat free milk powder positive results were found in milk yields, the protein content of the milk and in the live weight of the cows. The differences in the utilization of untreated and formaldehyde treated milk powder were not significant. Only small amounts of formaldehyde (0.11 mg/kg milk), were found in the milk of the cows receiving formaldehyde treated protein. The values of the blood analyses remained within the normal ranges on all diets.

scholarly journals Effects of supplemental protein and energy and feeding frequency on the performance of lactating dairy cows fed a protein deficient diet

2002 ◽  
Vol 82 (2) ◽  
pp. 225-231 ◽  
Author(s):  
M. C. Thivierge ◽  
J. F. Bernier ◽  
H. Lapierre
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Protein ◽  
Basal Diet ◽  
Protein Yield ◽  
Meal Frequency ◽  
Feeding Frequency ◽  
Deficient Diet ◽  
Protein Energy ◽  
Protein Deficient Diet

The objective of this experiment was to study the interaction between feeding frequency and supplementation of a protein-deficient diet with an undegradable protein and energy source on milk production and composition. Eight Holstein cows were used in a 2 × 2 factorial arrangement, using a replicated 4 × 4 Latin square design with 14-d experimental periods. The main factors were feeding frequency of the basal diet (two vs. seven times daily) and the addition of a protein-energy supplement fed in seven meals daily. Intake of the basal diet was individually restricted to 95% of previous ad libitum intake. The supplement consisted of 1.71 kg of Pro-Lak® (70% rumen-undegradable protein) and 0.94 kg of dried molasses. The basal diet provided 69, 89, 54, and 95% of the daily requirements of crude protein, rumen-degradable and rumen-undegradable proteins and NEL, respectively. Milk protein yield increased (P = 0.06) by 4% with increased feeding frequency. Milk and milk protein yield both increased (P < 0.01) by 12% with the supplement, but no interaction between feeding frequency and the supplement was observed. Urinary excretion of purine derivatives, an index of rumen microbial protein synthesis, was not affected by treatments. Thus, the results indicate that microbial growth was not affected by meal frequency or the protein-energy supplement, maybe due to the high supply of rumen-degradable protein from the basal diet. The effect of increasing meal frequency on milk protein yield might be related to an increased post-ruminal digestibility of organic matter. Key words: Dairy cows, feeding frequency, milk production, protein, purines

The preservation of a Nandi Setaria silage and its feeding value for dairy cows

1978 ◽  
Vol 18 (90) ◽  
pp. 16 ◽  
Author(s):  
RI Hamilton ◽  
VR Catchpole ◽  
LJ Lambourne ◽  
JD Korr
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Nutritive Value ◽  
Soluble Carbohydrates ◽  
Protein Supplement ◽  
Total N ◽  
Structural Rigidity ◽  
Energy Plus ◽  
Feeding Value ◽  
Sorghum Grain

The process of vacuum ensilage of Setaria Sphacelata (cv. Nandi) (33 per cent DM ; 7 per cent soluble carbohydrates; 1.36 per cent M) was studied, and the resultant silage was evaluated chemically, in milk production trials with dairy cows and in digestion trials with dry cows. The silage was well preserved in a chemical sense (pH 4.5; lactic acid 1.7 per cent, volatile acids 1.2 per cent DM ; volatile bases 9.8 per cent total N) but, because of the structural rigidity of the harvested grass, air could not be completely excluded even from the polythene-covered vacuum stack. The temperature reached 43�C in the first week of storage and considerable surface wastage occurred. The silage (DM digestibility 42 per cent, voluntary DM intake 81 g/kg0.75) was of poorer quality than the grass harvested (DM digestibility 54 per cent, voluntary DM intake 84 g/kg0.75) and, even by feeding concentrates, only a low level of milk production could be sustained in (mainly Jersey) cows in the 5th-9th months of lactation. In silage-fed cows given a protein supplement (cottonseed meal) milk production was lower (3.8 kg day-1) but fat content higher (5.4 per cent) than in those given an energy supplement (sorghum grain) or energy plus protein (4.7 kg day-1 and 4.9 per cent fat). When fed lucerne hay and given the same energy plus protein supplement, cows gave significantly more milk (5.7 kg day-1 and 4.6 per cent fat). The poor nutritive value of the silage is attributed to the nature and composition of the material ensiled rather than to any defect in the ensilage process itself, and may be a feature of most silage made from tropical grasses.

scholarly journals Effect of Sakura Block on Milk Production and Milk Quality of FH Cows in Late Lactation

2021 ◽  
Vol 16 (3) ◽  
pp. 266-272
Author(s):  
Jarmuji Jarmuji ◽  
D. Suherman ◽  
Yanuri Yanuri ◽  
R. Afriansyah ◽  
E. Sulistyowati
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Sample ◽  
Dry Matter ◽  
Milk Protein ◽  
Latin Square ◽  
Fat Content ◽  
Feed Consumption ◽  
Sample Collection

This study aims to evaluate milk production, fat content, and protein content of Friesian Holland (FH) dairy cow's milk by giving Sakura block at the final lactation of FH cow. The design used was the Latin Square Design (LSD), with treatments of P0 (0 Sakura blocks), P1 (300 gr Sakura blocks), P2 (600 gr Sakura blocks), and P3 (900 gr Sakura blocks). This study involved four dairy cows for four periods of which period consisted of 10 treatment days, where the last 3 days of each period were the milk sample collection. Milk production and feed consumption were measured and weighed daily. The results showed that the treatment had a significant effect (P <0.05) on the consumption of dry matter ratio and no significant effect (P> 0.05) on milk production, fat content, and milk protein.

Body composition and performance of autumn-calving Holstein-Friesian dairy cows during lactation: food intake, milk constituent output and live weight

1992 ◽  
Vol 1992 ◽  
pp. 100-100 ◽  
Author(s):  
J.D Sutton ◽  
K. Aston ◽  
D.E Beever ◽  
W.J. Fisher
Keyword(s):  
Body Composition ◽  
Dairy Cows ◽  
Milk Production ◽  
Live Weight ◽  
The Body ◽  
Grass Silage ◽  
Stage Of Lactation ◽  
Holstein Friesian ◽  
And Performance ◽  
Friesian Cows

The importance of measuring partition between body and milk in dairy cows and identifying the factors underlying it has long been recognised. However accurate measurements of partition In the body are few because of the difficulty and expense of the techniques.The purpose of the present experiment was to measure the effects in autumn-calving Holstein-Friesian cows given grass silage ad libitum of amount of concentrate and stage of lactation on body composition by direct (Gibb et al 1992a, b) and Indirect (Kings et al 1992) techniques, adipose tissue metabolism (Walsh et al 1992) and milk production. In a related trial, energy balance was measured in other cows by Indirect calorimetry (Cammell et al 1992).This report covers silage Intake, milk production and live-weight change. Communications on the associated studies are given in the Proceedings of this Meeting.

scholarly journals Effects of rearing, sire and calving season on growth and milk efficiency in dairy cows

2011 ◽  
Vol 49 (No. 8) ◽  
pp. 329-339
Author(s):  
J. Brouček ◽  
P. Kišac ◽  
A. Hanus ◽  
M. Uhrinčať ◽  
V. Foltys
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Protein ◽  
Milk Proteins ◽  
Live Weight ◽  
Total Solids ◽  
System A ◽  
Group A ◽  
Calving Season ◽  
Autumn And Winter

32 primiparous cows were used. We tested the hypotheses that live weight and milk efficiency were influenced by the system of rearing from the second week of life to weaning, by the sire, and by the season of calving. Three groups were created according to a rearing system (A &ndash; pens with automatic drinking cups, H &ndash; individual huts and N &ndash; pens with nursing cows). Primiparous cows originated from four sires and were divided according to the season of calving (spring, summer, autumn and winter). Group N had the highest LW (540.5 kg) and group A the lowest (504.8 kg) in the 1st month of the first lactation. In the 10th month of lactation, the weights were 554.5 kg (A), 566.9 kg (H), and 575.1 kg (N). ADG from the 2nd to 10th month of lactation were statistically different between the groups. Other significances were found by the comparison of animals according to sires (P &lt; 0.05). Group N had the highest milk efficiency almost in all months of lactation. The lowest production was recorded in group A. Daughters of the sire F<sub>3</sub> reached the highest milk production except the seventh and eighth months. Significant differences were calculated in the 5th and in the 6th month between daughters of sires F<sub>3</sub> and F<sub>1</sub>. Dairy cows calving in summer showed the lowest milk yield in the 3rd, 4th, 7th and 9th month. The most productive were cows calving in WIN and in SP. Group N achieved the highest production of milk for 305-day lactation (N 6 894.1 &plusmn; 879.8 kg) and animals fed from automatic drinking cups the lowest (A 5 757.5 &plusmn; 865.5 kg). A&nbsp;similar trend was recorded also in FCM milk. The content of fat was highest in group A (4.1%) and the lowest in group H (3.57%). Animals of group N produced highly significantly more proteins than group A (215.3 kg versus 180.9 kg, P &lt; 0.01). Group A produced the significantly lowest amount of lactose and nonfat solids over 305 days of lactation. The content of total solids was the highest in group A. Production of total solids was the highest in group N and the lowest in group A (846.5 kg versus 749.8 kg; P &lt; 0.05). The effect of the sire lineage was significantly expressed in milk production and in the content of fat, proteins, lactose, nonfat solids and total solids. The production of milk, proteins, lactose, nonfat solids and content of fat and lactose for 305-day lactation statistically differed according to the season of calving. Dairy cows calving in WIN yielded the highest amount of milk and proteins, cows calving in SP produced the highest amount of lactose and nonfat solids. Dairy cows calving in SU produced the lowest amount of milk, protein, lactose and nonfat solids. &nbsp; &nbsp;

Differential response of dairy cows to supplementary light during increasing or decreasing daylength

1998 ◽  
Vol 66 (1) ◽  
pp. 55-63 ◽  
Author(s):  
C. J. C. Phillips ◽  
C. A. Lomas ◽  
T. M. Arab
Keyword(s):  
Food Intake ◽  
Dairy Cows ◽  
Milk Production ◽  
Plasma Cortisol ◽  
Live Weight ◽  
Small Reduction ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
Feeding Area ◽  
Lying Down

AbstractTwo experiments were conducted to compare the response oflactating cows to supplementary light in their lying area during increasing and decreasing natural daylength. During decreasing daylength, supplementary light in the lying area increased the time cows spent lying down and considerably reduced calculated food intake, milk production, live weight and body condition, so that lights were installed in the feeding area for the last half of the experiment, which partially restored intake and live weight. Plasma cortisol concentrations and milk somatic cell counts were increased by supplementary light in decreasing daylength before, but not after, lights were installed in the feeding passage, suggesting that cows may have been stressed by the difficulties encountered during feeding in the dark. During increasing daylength supplementary light did not affect lying time, had less effect on food intake and no effect on milk production or live weight. There was a small reduction in plasma corticosteroid by the end of the experiment with supplementary light. It is concluded that providing supplementary light only in the lying area of dairy cows will have adverse effects on their production and welfare in decreasing, but not increasing daylength

scholarly journals The dependence of milk yield on the living weight of cows of Simmental breed

2020 ◽  
Vol 5 ◽  
Author(s):  
F.R Sattarov ◽  
M.E Ashirov ◽  
F.B. Bahriddinov
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Milk Fat ◽  
Live Weight ◽  
Milk Volume

Studies have found that increasing the salinity of dairy cows with Simmental breeds in the herd is important in increasing milk production and creating high-yielding herds. The amount of milk of the cows having 531-560 kg live weight with the type of milk production was 768-1153 kg (P>0,999), milk fat output was 21.6-27.9 kg, 4% milk volume was 540,3-697.1 kg) higher than the different living weight Equinox with the type of milk-meat, and these indicators were determined as 932.5-1401.3 kg), 26.9-38.5 kg.

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