The long-term effects of laminitis in dairy cows

1971 ◽  
Vol 89 (2) ◽  
pp. 34-37 ◽  
Author(s):  
C. Maclean
Keyword(s):  
Dairy Cows ◽  
Long Term Effects

Long-term effects of feeding diets without mineral phosphorus supplementation on the performance and phosphorus excretion in high-yielding dairy cows

2007 ◽  
Vol 87 (4) ◽  
pp. 639-646 ◽  
Author(s):  
N. E. Odongo ◽  
D. McKnight ◽  
A. KoekKoek ◽  
J. W. Fisher ◽  
P. Sharpe ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Body Condition Score ◽  
Block Design ◽  
Holstein Cows ◽  
Long Term Effects ◽  
Total Mixed Ration ◽  
Mineral Phosphorus ◽  
Randomized Block Design ◽  
Randomized Design

The objective of this study was to assess the long-term effects of feeding a diet with no mineral phosphorus (P) supplementation on performance and P excretion in high-yielding dairy cows. In exp. 1, 24 primiparous (PP) and 40 multiparous (MP) Holstein cows were allocated to one of two treatments at calving: (1) regular corn silage and alfalfa haylage based milking cow total mixed ration (TMR; 0.42% P diet) or (2) milking cow total mixed ration (TMR) without supplemental mineral P (0.35% P diet) in a completely randomized design. The trial lasted until after two lactations were completed or the cow was culled. In exp. 2, eight MP Holstein cows (108 ± 8.0 d in milk) were used to determine P digestibility and retention in a completely randomized block design. In exp. 1, the 0.35% P diet cows had lower body weight, body condition score and milk urea nitrogen and higher faecal P than the 0.42% P cows. The dry matter intake (DMI) of PP cows on the 0.35% P diet was lower than that of PP cows on the 0.42% P diet. There was no difference in the DMI of MP cows. The P intake of 0.35% P diet PP cows was 30% lower than that of 0.42% P diet PP cows. The P intake of 0.35% P diet MP cows was 20% lower than that of 0.42% P diet MP. The digestibility coefficient of P for the 0.35% P diet was higher than that for the 0.42% P diet. These results suggest that the forages used in the present study contained adequate amounts of P to sustain milk production in high-yielding MP cows. However, for PP cows some mineral P supplementation is recommended especially during early lactation. Key words: Phosphorus, environmental pollution, intensive dairy operations

scholarly journals Prenatal programming of later performance in dairy cattle

2020 ◽  
Vol 89 (1) ◽  
Author(s):  
M. Van Eetvelde ◽  
G. Opsomer
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Yield ◽  
Management Practices ◽  
Body Growth ◽  
Postnatal Life ◽  
Prenatal Programming ◽  
Long Term Effects ◽  
And Performance

Prenatal programming refers to the fact that insults during pre- and early postnatal life can have long-term consequences on the health and performance. In diary cattle, physiological conditions, such as maternal body growth, milk yield and parity, and environmental conditions during gestation can create a suboptimal environment for the developing fetus. As a consequence, adaptations of the placental and newborn phenotype take place. In addition, potential long-term effects of prenatal programming influence body growth, fertility, milk yield and longevity in dairy cows. These results suggest that the current management systems may pose a risk for the long-term health and performance of dairy cattle. Hence, in management practices, all pre- and postnatal aspects should carefully be considered in order to raise healthier and more productive dairy cows.

Pasture condition and milk production by grazing dairy cows as affected by daily herbage-allowance restriction

2019 ◽  
Vol 59 (8) ◽  
pp. 1510 ◽  
Author(s):  
V. M. Merino ◽  
O. A. Balocchi ◽  
R. G. Pulido
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Body Condition ◽  
Soil Compaction ◽  
Body Condition Score ◽  
Main Tool ◽  
Milk Composition ◽  
Unaffected Individual ◽  
Long Term Effects

Daily herbage allowance is recognised as the main tool to control pasture utilisation and milk production per cow. The aim of the present study was to evaluate the long-term effects of daily herbage allowance (DHA) on pasture characteristics and milk production of dairy cows. Forty-four dairy cows were randomly assigned to one of four treatments in a 2 × 2 factorial design by considering two levels of DHA (20 and 30 kg DM/cow.day) and two types of supplements (high-moisture maize and maize silage) over a 77-day period. Pre- and post-grazing herbage masses, vertical distribution of herbage mass, species density, botanical and chemical composition, sward depletion and changes in morphological components of the pasture were measured. The effect of DHA on soil compaction was evaluated on the basis of the penetration resistance. Milk production and composition levels, bodyweights and body condition scores were recorded. Post-grazing residual declined as the level of DHA decreased, while grazing efficiency increased from 39.8% to 44.8%. We found no effects of DHA on any pasture characteristics, pasture regrowth or soil compaction. Low-DHA conditions induced a faster sward-height reduction, while the herbage mass remained unaffected. Individual milk production decreased with DHA. However, milk outputs per hectare increased by 2772 L/ha. Milk composition, bodyweight and body condition score were not affected by DHA. The results showed that DHA restriction decreases milk production per cow while increasing both herbage utilisation and milk production per hectare, without affecting long-term pasture condition.

scholarly journals Long-Term Effects of Feeding Monensin on Methane Production in Lactating Dairy Cows

2007 ◽  
Vol 90 (4) ◽  
pp. 1781-1788 ◽  
Author(s):  
N.E. Odongo ◽  
R. Bagg ◽  
G. Vessie ◽  
P. Dick ◽  
M.M. Or-Rashid ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Methane Production ◽  
Long Term Effects ◽  
Lactating Dairy Cows

scholarly journals Long-Term Effects of Feeding Monensin on Milk Fatty Acid Composition in Lactating Dairy Cows

2007 ◽  
Vol 90 (11) ◽  
pp. 5126-5133 ◽  
Author(s):  
N.E. Odongo ◽  
M.M. Or-Rashid ◽  
R. Bagg ◽  
G. Vessie ◽  
P. Dick ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Dairy Cows ◽  
Acid Composition ◽  
Milk Fatty Acid ◽  
Long Term Effects ◽  
Lactating Dairy Cows

scholarly journals Long-term effects of postpartum clinical disease on milk production, reproduction, and culling of dairy cows

2019 ◽  
Vol 102 (12) ◽  
pp. 11701-11717 ◽  
Author(s):  
M.R. Carvalho ◽  
F. Peñagaricano ◽  
J.E.P. Santos ◽  
T.J. DeVries ◽  
B.W. McBride ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Clinical Disease ◽  
Long Term Effects

The effects of protein and energy content of compound feeds offered at low levels to October calving dairy cows

1997 ◽  
Vol 1990 ◽  
pp. 124-124
Author(s):  
O D Davies ◽  
V J Theobald
Keyword(s):  
Dairy Cows ◽  
Milk Protein ◽  
Energy Content ◽  
Winter Period ◽  
Long Term Effects ◽  
Flat Rate ◽  
Low Levels ◽  
Cow Performance ◽  
High Forage

Interest in milk production from home grown forage has increased in recent years, resulting in a reduction in the amount of compound feed offered. With autumn calving cows there has been a limited amount of work investigating high forage, low compound feeding throughout the winter period. Encouraging results from Trawsgoed over the past 5 years have shown the potential for high forage diets, however reductions in compound feed has consistently resulted in poorer milk quality, particularly milk protein. Experiments conducted by ICI and research workers at Hillsborough, N Ireland have shown favourable responses in milk protein from increasing the compound's protein content. In addition milk butterfat was improved at Hillsborough when the energy content of the compound was increased from 10.8 to 12.9 MJ ME/kg. Unfortunately these trials involved only short feeding periods and were unable to determine long term effects or effects at varying stages of lactation. This experiment examined the effects of both protein and energy concentrations of dairy compound feeds on silage intake and cow performance, when compounds were fed at a flat rate of 3 kg per day to October calving dairy cows throughout a 197 day winter feeding period.

scholarly journals Long-Term Effects of Dietary Supplementation with Olive Oil and Hydrogenated Vegetable Oil on the Rumen Microbiome of Dairy Cows

2021 ◽  
Vol 9 (6) ◽  
pp. 1121
Author(s):  
Nathaly Cancino-Padilla ◽  
Natalia Catalán ◽  
Karen Siu-Ting ◽  
Christopher J. Creevey ◽  
Sharon A. Huws ◽  
...  
Keyword(s):  
Olive Oil ◽  
Dairy Cows ◽  
Vegetable Oil ◽  
Dairy Cow ◽  
Basal Diet ◽  
Dietary Lipids ◽  
Long Term Effects ◽  
Rumen Microbiome ◽  
Hydrogenated Vegetable Oil

Dietary lipids increase energy density in dairy cow diets and in some cases can increase beneficial fatty acids (FA) in milk and dairy products. However, the degree of FA saturation may affect the rumen microbiome. The objective of this study was to determine the long-term effects of feeding saturated (hydrogenated vegetable oil; HVO) or unsaturated (olive oil; OO) fatty acid (FA) sources on the rumen microbiome of dairy cows. For 63 days, 15 mid-lactating cows were fed with either a basal diet (no fat supplement), or the basal diet supplemented with 3% dry matter (DM), either HVO or OO. Rumen contents were collected on days 21, 42 and 63 for 16S rRNA gene sequencing using the Illumina MiSeq platform. The results reveal dominance of the phyla Firmicutes (71.5%) and Bacteroidetes (26.2%), and their respective prevalent genera Succiniclasticum (19.4%) and Prevotella (16.6%). Succiniclasticum increased with both treatments at all time points. Prevotella was reduced on day 42 in both diets. Bacterial diversity alpha or beta were not affected by diets. Predicted bacterial functions by CowPI showed changes in energy and protein metabolism. Overall, 3% DM of lipid supplementation over 63 days can be used in dairy cow diets without major impacts on global bacterial community structure.

Sign in / Sign up

Export Citation Format

Share Document