Effect of restricted suckling patterns on milk yield, milk composition and calf performance

1995 ◽  
Vol 1995 ◽  
pp. 150-150
Author(s):  
C. Sandoval ◽  
J.D. Leaver
Keyword(s):  
Milk Yield ◽  
Production System ◽  
Milk Fat ◽  
Milk Protein ◽  
Milk Composition ◽  
Dual Purpose ◽  
Once Daily ◽  
Holstein Friesian ◽  
Calf Performance ◽  
Friesian Cows

The combination of milking combined with restricted suckling is a common production system (dual purpose) in many countries. In a previous study (Boden and Leaver, 1994, Animal production 58, 463-464 Abstr.), Holstein Friesian cows milked once daily, and restricted suckled produced 0.56 of the saleable milk of conventional twice daily milked cows. Restricted suckling substantially reduced milk fat and increased milk protein contents. In this study, a range of milking and suckling patterns were examined.

Effect of restricted suckling patterns on milk yield, milk composition and calf performance

1995 ◽  
Vol 1995 ◽  
pp. 150-150
Author(s):  
C. Sandoval ◽  
J.D. Leaver
Keyword(s):  
Milk Yield ◽  
Production System ◽  
Milk Fat ◽  
Milk Protein ◽  
Milk Composition ◽  
Dual Purpose ◽  
Once Daily ◽  
Holstein Friesian ◽  
Calf Performance ◽  
Friesian Cows

The combination of milking combined with restricted suckling is a common production system (dual purpose) in many countries. In a previous study (Boden and Leaver, 1994, Animal production 58, 463-464 Abstr.), Holstein Friesian cows milked once daily, and restricted suckled produced 0.56 of the saleable milk of conventional twice daily milked cows. Restricted suckling substantially reduced milk fat and increased milk protein contents. In this study, a range of milking and suckling patterns were examined.

Evaluation of dual-purpose cows on a seasonal grass-based system of milk production

2003 ◽  
Vol 2003 ◽  
pp. 58-58
Author(s):  
F. Buckley ◽  
P. Dillon ◽  
R.D. Evans ◽  
J.F. Mee
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Production System ◽  
Deleterious Effect ◽  
Milk Composition ◽  
Biological Efficiency ◽  
Dual Purpose ◽  
Holstein Friesian ◽  
Payment Schemes ◽  
Selection For

In recent years the relevance of continued selection for higher milk yield alone has been questioned for three reasons (Simm, 1998): 1) the introduction of milk quotas in some countries, 2) the now well documented deleterious effect of selection for yield on health and fertility (Pryce and Veerkamp, 2001), and, 3) the increased emphasis in payment schemes in many countries on milk composition. The purpose of this study was to measure the biological efficiency of two dual-purpose breeds (Montbeliarde (MB) and Normande (NR)) relative to two Holstein-Friesian strains (upgraded Irish Holstein-Friesian (CL) and Dutch Holstein-Friesian (HF)) on a spring-calving milk production system based mainly on grazed grass as a feed.

The effect of varying ratios of roughage to concentrates on composition and yield of cow's milk

1971 ◽  
Vol 38 (3) ◽  
pp. 295-302 ◽  
Author(s):  
S. Gordin ◽  
R. Volcani ◽  
Yehudith Birk
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Milk Protein ◽  
High Energy ◽  
Milk Composition ◽  
Normal Diet ◽  
Fat Percentage ◽  
Protein Percentage ◽  
Total Solids ◽  
Friesian Cows

SummaryTWO levels of roughage, 3 FU (feed units) and 5 FU daily, were fed to Israeli?–Friesian cows and heifers receiving either a normal (Normal) or a high-energy (High) diet.Milk yield and composition were examined for 12 weeks following parturition. The animals receiving 5 FU of roughage daily showed a higher milk yield during the first 8 weeks. With the Normal diet the amount of roughage had no effect on milk composition. With the High diet, milk yield was higher than with the Normal, and a depression in fat percentage was observed in the milk of cows and heifers receiving 3 FU daily. No corresponding fall in milk protein percentage was observed – the cows of this group (High-3 FU roughage) showing, in fact, a rise in protein percentage. No differences in milk total solids were found. With these high-energy low-roughage diets no correlation was apparent between milk fat and protein percentages.

The effects on milk yield and composition of incorporating lactose into the diet of dairy cows given protected fat

1996 ◽  
Vol 62 (1) ◽  
pp. 1-3 ◽  
Author(s):  
P. C. Garnsworthy
Keyword(s):  
Sugar Beet ◽  
Dairy Cows ◽  
Milk Yield ◽  
Milk Fat ◽  
Protein Concentration ◽  
Milk Protein ◽  
Basal Diet ◽  
Fat Supplementation ◽  
Holstein Friesian ◽  
Group A

AbstractTwenty-eight Holstein/Friesian dairy cows were divided into four groups of seven. From weeks 4 to 15 of lactation they were given a basal diet consisting of 8 kg hay, 2 kg sugar-beet feed and 2 kg grass nuts, together with a concentrate allowance of 8 kg/day. Concentrates for group A were based on cereals and soya (control). Concentrate B contained 60 g protected fat supplement per kg; concentrate C contained 100 g lactose per kg; concentrate D contained 60 g fat supplement and 100 g lactose per kg. Milk yields were 24·6, 27·7, 25·6 and 26·5 kg/day and milk protein concentrations were 32·3, 30·7, 32·7 and 31·9 g/kg for groups A, B, C and D respectively. The effect of fat supplementation on milk yield and protein concentration was significant (P < 0·05) but the effect of lactose was not significant. Milk fat concentration was not significantly affected by treatment. It is concluded that lactose can partially alleviate the depression in milk protein concentration often observed when cows are given protected fat.

scholarly journals Effect of season, genotype and lactation on milk yield and composition of local and crossbred dairy cows reared under different feed base region

2016 ◽  
Vol 19 (1-2) ◽  
pp. 50-65
Author(s):  
MA Baset ◽  
KS Huque ◽  
NR Sarker ◽  
MM Hossain ◽  
MN Islam
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Milk Protein ◽  
Block Design ◽  
Milk Composition ◽  
Base Region ◽  
Total Solids ◽  
Randomized Block Design ◽  
Daily Milk Yield ◽  
Daily Milk

A total of 160 cows, 10 cows in each of native (local cow) and crossbred (local × Holstein Friesian) origins differing in lactation were used in 2×2×2×2 factorial experiment using Randomized Block Design (RBD) to evaluate milk yield and composition of cows considering regions (good & poor feed base region), seasons (dry: Nov.–Feb. 2009 & wet: Jun.–Oct. 2009), genotypes and lactation. A “good and/or poor feed base” region was classified based on the availability of quantity and quality roughages throughout the year. The study revealed that the daily milk yield and 4% FCM of cows under good feed base condition were 6.76 and 6.49 kg, respectively and under poor feed base condition were 3.67 and 3.31 kg, respectively. Feed base region did not affect on milk fat and it was observed that the milk protein, lactose, solids-not-fat (SNF), minerals and total solids under good feed base condition were 37.9, 54.9, 100.9, 6.3 and 140.6 g/kg, respectively, whereas, under poor feed base condition the values were 36.3, 52.9, 98.0, 6.1 and 135.2 g/kg, respectively. Season did not affect milk yield and composition except minerals (6.5 g/kg vs. 5.9 g/kg). Genotypes significantly (p?0.01) influenced daily milk yield, the milk protein and minerals. Lactation did not affect milk yield and the milk protein, but influenced the fat, lactose, SNF, minerals and total solids. The interaction of feed base regions and seasons significantly (p?0.01) influenced milk yield and the milk fat and SNF. The milk protein and lactose was influenced by the interaction of feed bases region, seasons and lactation. Milk yield negatively correlated with fat per cent. The percentage of fat significantly (p?0.01) correlated with protein, lactose, SNF, and minerals %. The percentage protein correlated with lactose, SNF and minerals. Lactose % significantly (p?0.01) correlated with SNF%. It may be concluded that milk yield and composition depends on feed base region, genotype and lactation of cows. Season did not influence milk yield and the composition. Milk yield negatively correlated with the percentage of fat, protein, lactose, SNF and milk composition strongly correlated with each other.Bangladesh J. of Livestock Res. 19(1-2): 50-65, Jan-Dec 2012

Milk production by dairy cows fed legume grains or barley grain with or without urea as supplements to a cereal hay based diet

1990 ◽  
Vol 30 (1) ◽  
pp. 7 ◽  
Author(s):  
SC Valentine ◽  
BD Bartsch
Keyword(s):  
Milk Production ◽  
Faba Bean ◽  
Milk Fat ◽  
Dry Matter ◽  
Milk Protein ◽  
Barley Grain ◽  
Early Lactation ◽  
Milk Protein Content ◽  
Holstein Friesian ◽  
Friesian Cows

Milk production and composition was determined in Holstein-Friesian cows fed either 3.5 or 7.0 kg dry matter (DM) daily of lupin grain, pea grain, faba bean grain or barley grain with or without 1.5% added urea, as supplements to an oaten hay based diet. All the grains were hammermilled. Daily yields of milk (L), fat (kg) and protein (kg) were significantly (P<0.05) higher for cows fed lupin (20.0, 0.81, 0.57), pea (18.9, 0.80, 0.56) and faba bean (18.9, 0.79,0.55) grains compared with those of cows fed barley grain with (17.8, 0.73, 0.51) or without (18.0, 0.71, 0.52) urea. Yields of milk (L), fat (kg) and protein (kg) and milk protein content (g/kg) were significantly (P<0.05) higher when 7.0 kg DM (19.5, 0.80, 0.57, 29.6) compared with 3.5 kg DM (18.0,0.73,0.51,29.0) of grain was fed. There were no significant differences between treatments in hay DM intake by cows fed 3.5 kg DM of grain daily. A significantly (P<0.05) higher milk fat production per unit DM intake was recorded for cows fed legume compared with barley grain. There were generally higher returns above grain cost for cows fed legume compared with barley grain and for cows fed 4 kg compared to 8 kg daily of grain. It was concluded that it was more economical to feed 3.5 kg DM of legume grain compared with 3.5 kg DM of barley grain, with or without urea, as supplements for cows offered cereal hay in early lactation. However, the economics of feeding 7.0 kg DM of legume grain compared with 7.0 kg DM of barley grain and 7.0 kg DM compared with 3.5 kg DM of grain will depend on the costs of relative changes in hay intake associated with these practices.

scholarly journals Effect of Varying Dietary Crude Protein Level on Feed Intake, Nutrient Digestibility, Milk Production, and Nitrogen Use Efficiency by Lactating Holstein-Friesian Cows

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2439
Author(s):  
Constantine Bakyusa Katongole ◽  
Tianhai Yan
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Crude Protein ◽  
Milk Protein ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Dietary Crude Protein ◽  
Holstein Friesian ◽  
Use Efficiency ◽  
Friesian Cows

The effect of dietary crude protein (CP) level on intake, digestibility, milk production, and nitrogen (N) use efficiency was studied. Twenty-four Holstein-Friesian cows (17 multiparous and seven primiparous) were grouped by parity, days in milk, milk yield, and live weight into six blocks of four, and randomly assigned to four total mixed ration (TMR) treatments, containing 141, 151, 177, or 210 g CP/kg dry matter (DM), over 28 day experimental periods. Apparent total-tract DM and fiber digestibilities and milk fat composition were similar across treatments. Milk protein and urea-N compositions, and urinary and manure N excretion increased linearly, while milk N efficiency (MNE) decreased linearly with increasing CP. DM intake was highest with the 177 diet, while CP intake increased linearly with increasing CP, peaking at 200 g/kg DM. Milk yield increased with CP intake for the three lower CP levels, peaking at 176 g CP/kg DM. The further increase in CP level from 177 to 210 g/kg DM did not result in improved milk yield, but resulted in decreased milk N secretion and increased urinary N excretion. In summary, milk protein composition increased linearly with increasing CP, accompanied by a linear decrease in MNE, resulting in a bell-shaped relationship between milk yield and dietary CP level.

scholarly journals Effect of feeding textured concentrates with alfalfa cubes to lactating dairy cows producing low fat milk

1997 ◽  
Vol 77 (4) ◽  
pp. 735-737 ◽  
Author(s):  
W. C. Gardner ◽  
M. A. G. von Keyserlingk ◽  
J. A. Shelford ◽  
L. J. Fisher
Keyword(s):  
Fatty Acid ◽  
Milk Yield ◽  
Milk Fat ◽  
Volatile Fatty Acid ◽  
Milk Protein ◽  
Milk Composition ◽  
Fat Percentage ◽  
Lactating Dairy Cows ◽  
Significant Difference ◽  
Effect Of Feeding

Twenty–one multiparous Holsteins were used in a cross over design with two 28-d periods. Cows were randomly assigned to two treatments to assess the effect of textured and pelleted concentrates fed with alfalfa cubes on feed intake, milk yield, milk composition and rumen volatile fatty acid concentrations. Those animals receiving the textured concentrate had significantly (P < 0.05) higher milk yield and milk fat percentage than did those animals fed the pelleted concentrate. A significant difference in the ratio of milk protein to milk fat was also observed with the cows receiving the pelleted concentrate having a ratio of 1.31 and the cows receiving the textured concentrate a ratio of 1.02. No significant (P < 0.05) differences were observed between the textured and pelleted feeds in total or individual volatile fatty acid concentrations. These results indicate that the feeding of textured concentrates can lead to an increase in milk fat production when compared with the feeding of pelleted concentrates. Key words: Dairy cattle, milk composition, textured and pelleted concentrate, VFA

Effect of duodenal proline infusion on milk production and composition in dairy cows

1991 ◽  
Vol 53 (3) ◽  
pp. 299-303 ◽  
Author(s):  
I. Bruckental ◽  
I. Ascarelli ◽  
B. Yosif ◽  
E. Alumot
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Milk Fat ◽  
Protein Concentration ◽  
Milk Protein ◽  
Protein Yield ◽  
Energy Utilization ◽  
Dietary Energy ◽  
Arginine Uptake ◽  
Friesian Cows

AbstractFour Israeli-Friesian cows, two at peak and two at mid lactation, were fitted with duodenal cannulas. They were given proline or water infusions for 8-day periods to evaluate the effect of duodenal infusion of proline on arginine uptake by the mammary gland and on milk yield and composition of dairy cows. Milk fat content and 40 g/kg fat-corrected milk yield increased for all cows due to proline infusion. Milk protein concentration during either early or mid lactation and milk protein yield during early lactation, were not affected by proline infusion. Milk protein yield during mid lactation was increased due to proline infusion. Arginine uptake by the udder dropped by one-half during proline infusion. Results suggest that post-ruminal administration of supplemental proline reduced requirements for arginine by the udder and improved efficiency of dietary energy utilization.

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