scholarly journals Cyberlindnera jadinii yeast as a protein source in early- to mid-lactation dairy cow diets: Effects on feed intake, ruminal fermentation, and milk production

2022 ◽  
Author(s):  
Alemayehu Kidane ◽  
Stine Gregersen Vhile ◽  
Sabine Ferneborg ◽  
Siv Skeie ◽  
Martine Andrea Olsen ◽  
...  
Keyword(s):  
Milk Production ◽  
Dairy Cow ◽  
Feed Intake ◽  
Protein Source ◽  
Ruminal Fermentation

scholarly journals A comparison of grass silages harvested at first, second and third cut on feed intake and milk production of dairy cows

2021 ◽  
Vol 30 (2) ◽  
Author(s):  
Auvo Sairanen ◽  
Sari Kajava ◽  
Annu Palmio ◽  
Marketta Rinne
Keyword(s):  
Milk Production ◽  
Dairy Cow ◽  
Feed Intake ◽  
Dry Matter ◽  
Weather Conditions ◽  
Production Potential ◽  
Grass Silage ◽  
Feeding Experiments ◽  
Northern Latitudes ◽  
Average Intake

The objective of this study was to compare the milk production potential of first, second and third harvest of grass silage from the same sward in Northern latitudes. Three change-over design dairy cow feeding experiments were conducted during different years which differed markedly in weather conditions. The silages were supplemented with a cereal based The objective of this study was to compare the milk production potential of subsequent first, second and third cuts of grass silage from the same sward in Northern latitudes. Three change-over design dairy cow feeding experiments were conducted during different years which differed markedly in weather conditions. The silages were supplemented with a cereal based concentrate (average concentrate proportion 431 g kg-1 diet dry matter). Feed intake and milk production was highest with first-cut and lowest with third-cut silage. The energy corrected milk yields averaged over three experiments were 35.0, 33.2 and 31.9 kg d-1 for first, second and third harvest silages, respectively. Respective dry matter intakes were 23.1, 21.9 and 20.7 kg d-1. Compared to analysed feed values, the average intake of third-cut silages was lower than expected. Due to the high risk of low intake potential of third-cut silages, they are not recommended for cows in early lactation if there are other silages available.

Effect of replacement of antibiotics with thyme and celery seed mixture on the feed intake and digestion, ruminal fermentation, blood chemistry, and milk lactation of lactating Barki ewes

2020 ◽  
Vol 11 (8) ◽  
pp. 6889-6898
Author(s):  
M. S. A. Khattab ◽  
A. E. Kholif ◽  
A. M. Abd El Tawab ◽  
M. M. Shaaban ◽  
F. I. Hadhoud ◽  
...  
Keyword(s):  
Milk Production ◽  
Feed Intake ◽  
Nutritive Value ◽  
Blood Chemistry ◽  
Ruminal Fermentation ◽  
Celery Seed ◽  
Seed Mixture

The study investigated the effect of in-feed administration of dried thyme leaf and celery seed mixture (at 1 : 1 w/w) compared with salinomycin ionophore on milk production and milk nutritive value of Barki ewes.

scholarly journals Effect of Potato By-Product on Production Responses of Dairy Cows and Total Mixed Ration Stability

Dairy ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 218-230
Author(s):  
Marcia Franco ◽  
Tomasz Stefański ◽  
Taina Jalava ◽  
Marja Lehto ◽  
Minna Kahala ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Dairy Cow ◽  
Feed Intake ◽  
Food System ◽  
Point Of View ◽  
Total Mixed Ration ◽  
Aerobic Stability ◽  
Chemical Preservatives ◽  
Scale Experiment

Vegetable by-products have great potential for use as animal feeds and thus could improve the sustainability of the food system. The objective was to evaluate the milk production potential of potato by-product (PBP) replacing cereal grains in grass silage-based total mixed ration (TMR). Additionally, a laboratory scale experiment was conducted to assess the effect of PBP and chemical preservatives on the aerobic stability of TMRs. A change-over dairy cow feeding experiment was conducted to evaluate the inclusion of 135 g/kg (on a dry matter (DM) basis) of PBP in TMR. Additionally, the aerobic stability of TMR was evaluated by preparing TMRs with increasing levels of PBP and treated with different doses of formic and propionic acid or salt-based preservatives. The inclusion of PBP in dairy cow diets decreased feed intake, but organic matter digestibility was greater in the PBP diet, resulting in only slightly decreased production (milk protein 1435 vs. 1363 g/day, p < 0.05; milk lactose 1716 vs. 1606 g/day, p < 0.05). The aerobic stability of TMR was negatively affected by the inclusion of PBP, but it could to a limited extent be prolonged using chemical preservatives. The inclusion of PBP decreased feed intake and milk production to some extent when included in the diet of high-producing dairy cows. The utilization of PBP may, however, be justified from a sustainability point of view, as it provides a way to circulate the nutrients of a non-human edible feed material back into the food chain.

The relationships between live animal measurements and the physical and chemical composition of dairy cows

1984 ◽  
Vol 1984 ◽  
pp. 38-38
Author(s):  
D.I. Lamont ◽  
D.R. Neilson ◽  
G.C. Emmans ◽  
J. Fraser ◽  
J.H.D. Prescott
Keyword(s):  
Chemical Composition ◽  
Dairy Cows ◽  
Milk Production ◽  
Dairy Cow ◽  
Feed Intake ◽  
Yield Potential ◽  
Early Lactation ◽  
Live Animal ◽  
Data Set ◽  
Physical And Chemical

A knowledge of the chemical composition of the dairy cow is Important in interpreting the interacting influences of body reserves, diet and feed intake on milk production. An investigation has designed to obtain information from a representative sample of Friesian/Holstein cows at different stages of lactation, different ages, and of different yield potential. This information is expensive to collect due to the costs Involved in slaughtering and analysing dairy cows, especially if they are high yielding cows at peak production. The animals used in the investigation have therefore all been Planned culls with sixteen in the later stages of lactation with only three killed in early lactation. It is intended to continue this investigation for several years to obtain a comprehensive data set on the chemical composition of the dairy cow.

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