scholarly journals Effect of protein supplementation on milk production and metabolism of dairy cows grazing tropical grass

2013 ◽  
Vol 96 (1) ◽  
pp. 407-419 ◽  
Author(s):  
M.A.C. Danes ◽  
L.J. Chagas ◽  
A.M. Pedroso ◽  
F.A.P. Santos
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Protein Supplementation ◽  
Tropical Grass

Protein supplementation to early lactation dairy cows grazing tropical grass: Performance and ruminal metabolism

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Lucas Jado Chagas ◽  
Camila Delveaux Araujo Batalha ◽  
Marina Arruda Camargo Danés ◽  
José Maurício Santos Neto ◽  
Fernanda Lopes Macedo ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Protein Supplementation ◽  
Early Lactation ◽  
Tropical Grass

Effect of timing of protein supplementation on the performance of lactating dairy cows

2005 ◽  
Vol 45 (4) ◽  
pp. 337
Author(s):  
B. C. Granzin
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Protein Supplementation ◽  
Net Energy ◽  
Maize Silage ◽  
Holstein Friesian ◽  
Grazing Dairy Cows ◽  
And Control ◽  
Friesian Cows

Two experiments were undertaken to determine the effect of timing of protein supplementation on performance of grazing, lactating Holstein–Friesian cows fed maize silage and grain-based concentrate. In experiment 1, 36 cows were fed 0.8 kg DM/day of solvent-extracted cottonseed meal (CSM) either as 1 meal at 1200 hours with maize silage (CSM 1200) or at 1530 hours with concentrate (CSM 1530), or in 2 meals at 0600 and 1530 hours with concentrate (CSM 600 + 1530). In experiment 2, 36 cows were either fed no CSM (control) or fed 1.0 kg DM/day as either CSM 1200 or CSM 600 + 1530. In experiment 1, daily yields of 4% fat-corrected milk (FCM) and milk fat for CSM 600 + 1530 were significantly higher than for CSM 1530 with respective means of 22.8 v. 20.7 L and 895 v. 804 g. Daily yields of FCM and milk fat for CSM 1200 were intermediate (21.7 L and 841 g/cow, respectively). A similar trend for daily protein yield per cow was noted (712, 695 and 666 g for CSM 600 + 1530, 1200 and 1530, respectively). In experiment 2, milk yield differed numerically between CSM 600 + 1530 and other treatments, with means (± s.e.d.) of 24.7 ± 0.78, 22.9 ± 0.78 and 22.9 ± 0.78 L/cow.day for CSM 600 + 1530, CSM 1200 and control, respectively. Mean (± s.e.d.) net energy requirements for milk production and liveweight change tended to be lower for the control (68 ± 3.6 MJ/cow.day) as opposed to CSM 600 + 1530 (79 ± 3.6 MJ/cow.day) and CSM 1200 (76 ± 3.6 MJ/cow.day). Cumulative time where rumen degradable nitrogen:rumen degradable dry matter was less than 22 g/kg were 2, 2 and 3 h for CSM 600 + 1530, CSM 1200 and CSM 1530, respectively, in experiment 1, and 6, 4 and 2 h for the control, 1200 and CSM 600 + 1530, respectively, in experiment 2. No differences in rumen ammonia-N concentrations were noted between treatments in experiment 1. In experiment 2, a significantly lower mean (± s.e.d.) rumen ammonia-N concentration was recorded for the control at 1530 hours (62 ± 14.1 mg/dL) in comparison to CSM 600 + 1530 (114 ± 14.1 mg/dL) and CSM 1200 (119 ± 14.1 mg/dL). These experiments show that for grazing dairy cows supplemented with maize silage and grain-based concentrate, feeding a daily aliquot of CSM as 2 meals at 0600 and 1530 hours rather than 1 meal at 1200 or 1530 hours improves milk production.

scholarly journals Supplementation strategies for dairy cows kept in tropical grass pastures

2017 ◽  
Vol 38 (1) ◽  
pp. 401 ◽  
Author(s):  
Joelson Antonio Silva ◽  
Camilla Gabriela Miranda Silva ◽  
Daniel De Paula Sousa ◽  
Nelcino Francisco de Paula ◽  
Ana Paula Da Silva Carvalho ◽  
...  
Keyword(s):  
Body Weight ◽  
Feeding Behavior ◽  
Dairy Cows ◽  
Milk Production ◽  
Feed Efficiency ◽  
Nutrient Digestibility ◽  
Panicum Maximum ◽  
Mineral Mixture ◽  
Forage Intake ◽  
Tropical Grass

This study aimed to evaluate the supplementation strategies on forage intake and nutrient digestibility, feeding behavior, milk production and composition, feed efficiency, nitrogen balance and body weight change of dairy cows kept in Tanzania grass pastures (Panicum maximum Jacq. cv. Tanzania) in the dry season. We used eight crossbred Holstein and Zebu cows in the final third of lactation, with an average weight of 505±44 kg and initial milk production of 9.0±1.44 kg day-1, in a double 4X4 Latin square design. The experiment consisted of four experimental periods of 17 days each, with nine days for initial adaptation and eight days to collect data. Treatments consisted of mineral mix and supplements (energy, protein or multiple) provided in the amount of 2 kg per cow day-1. Supplements promoted increased consumption of dry matter and nutrients (P < 0.05), without changing the forage intake in relation to the mineral mixture. The treatments did not affect the feeding behavior of animals (P > 0.05). There was an increase (P < 0.05) of 19.51% in milk production in the supplemented animals and productive responses approximate marginal 0.64 kg of milk for each kg of supplied supplement, however, the different supplements promoted a drop in the milk fat. There were higher net energy values of animal lactation for protein-energy supplementation and mineral mixture, but no change was observed in feed efficiency and energy efficiency. The performance of dairy cows kept in tropical grass pasture can be improved with the use of a concentrate supplementation of 0.40% of body weight per day-1 without compromising the forage intake of animals.

Effect of maize silage quality in a mixed forage diet and the crude protein level in the concentrate supplement on milk production of dairy cows

1998 ◽  
Vol 1998 ◽  
pp. 149-149
Author(s):  
J.J. Fitzgerald ◽  
J.J. Murphy
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Crude Protein ◽  
Starch Content ◽  
Protein Supplementation ◽  
Optimum Level ◽  
Maize Silage ◽  
Grass Silage ◽  
High Starch Content ◽  
Additional Protein

Good quality maize silage with a high starch content and DM digestibility when fed to dairy cows increased forage intake, milk production and milk protein concentration compared with grass silage or low starch maize silage (Fitzgerald, 1997). Due to the low crude protein (CP) content of maize silage compared with grass silage, additional protein supplementation is required in the concentrate. The optimum level of protein in the concentrate for maize silage based forages differing in starch content was investigated in this study.Three forages consisting of either all grass silage (GS) or mixed forages of grass silage and maize silage (40:60 DM mix) which contained either a low (LSM) or a high (HSM) starch content were offered ad libitum to individually fed dairy cows in early lactation (12 cows/forage). Each forage was supplemented with concentrates (6 kg/day) containing 180, 230 or 280 g CP/kg according to a change over design (3 periods of 3 weeks/period).

scholarly journals Effect of bypass protein supplement on milk production in Jersey cow

2018 ◽  
Vol 47 (2) ◽  
pp. 98-104
Author(s):  
MR Tiwari ◽  
PK Jha ◽  
SR Pant ◽  
MP Acharya ◽  
P Thapa ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Protein Supplementation ◽  
Production Performance ◽  
Treatment Groups ◽  
Cost Benefits ◽  
Heat Treated ◽  
Soybean Cake ◽  
Concentrate Mixture

Bypass protein is known to stimulate the voluntary feed intake, increase quality milk production and thereby improve economic status from dairy cows farming. This study was conducted to compare the responses of additional bypass protein as feed supplement on milk production performance in Jersey dairy cows, and its cost benefits per L of milk production. A total of 12 lactating Jersey dairy cows, apparently having similar reproductive and productive performances were selected. The cows were randomly grouped into 3 treatments groups; T1 (Control): 6 kg concentrate mixture, T2: 6 kg concentrate mixture plus 1.5 kg heat-treated soybean cake, and T3: 6 kg concentrate mixture plus 1.5 kg formalin treated soybean cake. An acclimatization period of 7 days, the experimental procedure was carried for the period of 62 days. Other management; feeding - adlib amount of straw and green grass such as oat, signal and local grass once a day, natural grazing average 3 hrs/ day), watering and housing remained as routinely done by the farm. The compound feed was procured from Fine Feeds Industries Pvt. Ltd., Chitwan, Nepal. Feed intake and milk production of individual animal was recorded daily. The straw and concentrate intake of experimental cows among the treatment groups differed significantly (P<0.001), whereas green grass intake among the diet groups differed insignificantly. The initial recorded milk production 5.4 L, 5.45 L and 5.62 L among the treatment groups found insignificant, whereas the final milk production 7.85 L, 6.12 L and 5.82 L among the treatment groups found highly significant (P<0.001). The economic analysis (its cost benefits per L of milk production) during the period of 62 days of experimentation, it was revealed that feeding package T2 is more beneficial than T3. The net income accounted for NRs 12152.11 and NRs 7457. 55 using T2 and T3 feeding package, respectively. Therefore, it is suggested that heat-treated soybean cake supplementation to early lactating (up to 3 months) dairy cows is one of the option to increase milk production and income of farmers. Further study needed to be carried out to ascertain the optimum level and duration of additional protein supplementation to dairy cows. Bang. J. Anim. Sci. 2018. 47 (2): 98-104

Effect of protein supplementation on the digestibility of urea treated whole crop wheat and on milk production by dairy cows

1992 ◽  
Vol 1992 ◽  
pp. 3-3
Author(s):  
J. Hill ◽  
J.D. Leaver
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Protein Intake ◽  
Latin Squares ◽  
Protein Supplementation ◽  
Lactating Cows ◽  
Beet Pulp ◽  
Ad Libitum ◽  
Low Efficiency ◽  
Soya Bean Meal

Previous studies have shown a low efficiency of utilisation of urea treated whole crop wheat (UWCW) when offered as the sole forage to dairy cows (Hill and Leaver 1990). The poor efficiency of utilisation of metabolisable energy could possibly be influenced by the level and quality (the balance in QFN, SFN, and UN) of protein intake by the cow.To investigate the effect of level and quality of protein intake on the digestibility of UWCW fed ad libitum to lactating cows, an experiment was carried out using three concentrate sources based upon molassed sugar beet pulp pellets (Diet A), soya bean meal (Diet B) and fishmeal (Diet C). A concurrent experiment was implemented to analyse the degradation characteristics of UWCW using sheep.Six multiparous mid to late lactation Holstein Friesian cows were allocated to two 3x3 latin squares. Each cow was housed in an individual pen and fed UWCW ad libitum once daily and concentrate twice daily. Individual DM intakes of forage, milk production, liveweight and faecal output were estimated for each diet. The degradability trial used the methodology of Paine et al (1982).

scholarly journals Supply of nutrients and productive responses in dairy cows given diets based on restrictively fermented silage

1998 ◽  
Vol 7 (2) ◽  
pp. 219-250 ◽  
Author(s):  
Pekka Huhtanen
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Evaluation System ◽  
Milk Protein ◽  
High Efficiency ◽  
Protein Supplementation ◽  
Protein Yield ◽  
Grass Silage ◽  
Body Tissues ◽  
Protein Supply

The objective of this paper is to review research which has evaluated the feeding of dairy cows with diets containing large proportions of grass silage. In Finland, milk production systems evolved are based on the use of restrictively fermented silages. Higher potential yields, smaller production risks than with cereal grains, short grazing period and high digestibility of grasses grown in northern latitudes have facilitated this development. Factors affecting nutrient supply from these diets are discussed. Digestibility is determined mainly by the stage of maturity at harvesting and it is not markedly affected by the level of energy and protein supplementation. Intake of grass silage is influenced both by digestibility and fermentation characteristics. Efficiency of microbial synthesis is high in animals given diets based on restrictively fermented silage but rumen fermentation pattern is characterised by low molar proportions of propionate. Production responses to additional concentrate are relatively small, especially when the amount of concentrate exceeds 10 kg day-1. High substitution of silage dry matter (DM), negative associative effects on digestion and partitioning of energy towards body tissues account for small production responses. Protein supplementation has consistently increased milk protein yield but responses do not appear to be related to the level of milk production, silage crude protein content, amount of concentrate or stage of lactation. The new protein evaluation system provides an accurate prediction of protein yield with the typical Finnish dairy cow diets. The high slopes (ca. 0.5) between protein supply and milk protein yield within experiments suggest that protein supply is suboptimal and protein supplements are used with a high efficiency.

scholarly journals THE IMPACT OF BALANCED ENERGY AND PROTEIN SUPPLEMENTATION TO MILK PRODUCTION AND QUALITY IN EARLY LACTATING DAIRY COWS

2016 ◽  
Vol 41 (2) ◽  
pp. 83-90 ◽  
Author(s):  
W. P. Widyobroto ◽  
R. Rochijan ◽  
I. Ismaya ◽  
A. Adiarto ◽  
Y. Y. Suranindyah
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Basal Diet ◽  
Total Solid ◽  
Protein Supplementation ◽  
Lactating Dairy Cows ◽  
Quality Of Milk ◽  
The Impact

This research was aimed to determine the impact of balanced energy and protein supplementation with high rumen undegraded protein (HRUP) to milk production and quality in early lactating dairy cows. Twelve early lactating Friesian Holstein cows were divided into two groups (control and HRUP). Both control and HRUP group were fed on a basal diet (forage to concentrate ratio was 60:40; DM basis), with rumen undegraded protein (RUP) levels were 27.47% and 32.78% for control and HRUP, respectively. The experimental diets were given to animals twice daily, morning and afternoon. Water was given by ad libitum. The observed parameters were nutrient intake, quantity and quality of milk production . Data were examined using t-test. Results showed that feed intake, milk production and 4% FCM, milk fat and lactose concentrations, and milk solid non-fat and total solid concentrations were not differed significantly between control and HRUP groups. However, milk protein concentration and production were differed (P

Effect of maize silage quality in a mixed forage diet and the crude protein level in the concentrate supplement on milk production of dairy cows

1998 ◽  
Vol 1998 ◽  
pp. 149-149 ◽  
Author(s):  
J.J. Fitzgerald ◽  
J.J. Murphy
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Crude Protein ◽  
Starch Content ◽  
Protein Supplementation ◽  
Optimum Level ◽  
Maize Silage ◽  
Grass Silage ◽  
High Starch Content ◽  
Additional Protein

Good quality maize silage with a high starch content and DM digestibility when fed to dairy cows increased forage intake, milk production and milk protein concentration compared with grass silage or low starch maize silage (Fitzgerald, 1997). Due to the low crude protein (CP) content of maize silage compared with grass silage, additional protein supplementation is required in the concentrate. The optimum level of protein in the concentrate for maize silage based forages differing in starch content was investigated in this study.Three forages consisting of either all grass silage (GS) or mixed forages of grass silage and maize silage (40:60 DM mix) which contained either a low (LSM) or a high (HSM) starch content were offered ad libitum to individually fed dairy cows in early lactation (12 cows/forage). Each forage was supplemented with concentrates (6 kg/day) containing 180, 230 or 280 g CP/kg according to a change over design (3 periods of 3 weeks/period).

LIME AND DAIRY PRODUCTION

1982 ◽  
pp. 93-103
Author(s):  
N.A. Thomson
Keyword(s):  
Soil Moisture ◽  
Dairy Cows ◽  
Milk Production ◽  
Soil Ph ◽  
Dairy Production ◽  
Pasture Production ◽  
The Third ◽  
One Year ◽  
Plasma Magnesium

In a four year grazing trial with dairy cows the application of 5000 kg lime/ ha (applied in two applications of 2500 kg/ha in winter of the first two years) significantly increased annual pasture production in two of the four years and dairy production in one year. In three of the four years lime significantly increased pasture growth over summer/autumn with concurrent increases in milk production. In the last year of the trial lime had little effect on pasture growth but a relatively large increase in milkfat production resulted. A higher incidence of grass staggers was recorded on the limed farmlets in spring for each of the four years. In the second spring immediately following the second application of lime significant depressions in both pasture and plasma magnesium levels were recorded. By the third spring differences in plasma magnesium levels were negligible but small depressions in herbage magnesium resulting from lime continued to the end of the trial. Lime significantly raised soil pH, Ca and Mg levels but had no effect on either soil K or P. As pH levels of the unlimed paddocks were low (5.2-5.4) in each autumn and soil moisture levels were increased by liming, these factors may suggest possible causes for the seasonality of the pasture response to lime

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