Dry matter intake and milk production of grazing dairy cows supplemented with corn silage or a total mixed ration offered ad libitum in a subtropical area

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Henrique M.N. Ribeiro‐Filho ◽  
Aline C. Dall‐Orsoletta ◽  
Diego Mendes ◽  
Rémy Delagarde
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Dry Matter ◽  
Corn Silage ◽  
Dry Matter Intake ◽  
Total Mixed Ration ◽  
Subtropical Area ◽  
Ad Libitum ◽  
Grazing Dairy Cows

Hay supplements to overcome underfeeding of dairy cows. 2. Late lactation

1981 ◽  
Vol 21 (109) ◽  
pp. 157 ◽  
Author(s):  
KR King ◽  
CR Stockdale
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Body Condition ◽  
Dry Matter ◽  
Nutritive Value ◽  
Dry Matter Intake ◽  
High Quality ◽  
Stage Of Lactation ◽  
Ad Libitum ◽  
Ration Composition

The effect of hay supplementation on the performance of dairy cows on a restricted intake of paspalum-dominant perennial pasture was studied in two 21 -day periods in the eighth and ninth months of lactation. In each period, there were three groups fed pasture only at mean intakes of 15.2, 11.5 and 7.3 kg/cow day-1, two groups fed at similar pasture restriction levels and supplemented with hay ad libitum, and one further group fed an average of 7.3 kg of pasture supplemented with only 4.3 kg of hay. The data were analyzed by regression, using total dry matter intake as the dependent variable, and pseudovariables were used to examine the effects of hay feeding. The relations between total dry matter intake and milk, butterfat, protein and solids-not-fat production, and change in body condition of dairy cows were not altered by ration composition. Milk production declined linearly by 0.66 kg and 0.31 kg/cow day-1 in the eight and ninth months of lactation, respectively, for each kg reduction in total dry matter intake. Similar responses were obtained for butterfat, protein and solids-not-fat production. Gain in body condition of the cows also decreased as total intake fell, but the relation was curvilinear and not affected by stage of lactation. It was concluded that high quality hay can be used to overcome shortages of paspalum-dominant perennial pasture in autumn, and that it has similar. nutritive value to pasture in terms of milk production and body condition.

scholarly journals Effect of pregrazing herbage mass on methane production, dry matter intake, and milk production of grazing dairy cows during the mid-season period

2010 ◽  
Vol 93 (10) ◽  
pp. 4976-4985 ◽  
Author(s):  
C.M. Wims ◽  
M.H. Deighton ◽  
E. Lewis ◽  
B. O’Loughlin ◽  
L. Delaby ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Methane Production ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Grazing Dairy Cows

Effect of stage of lactation and feeding level on milk yield response by stall-fed dairy cows to change in pasture intake

1990 ◽  
Vol 30 (4) ◽  
pp. 495 ◽  
Author(s):  
C Grainger
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Early Lactation ◽  
Feeding Level ◽  
Stage Of Lactation ◽  
Ad Libitum ◽  
Ad Libitum Intake

Three separate experiments were carried out to determine the effects of stage of lactation and feeding level on marginal production response by dairy cows to change in feeding level. In each experiment cows were individually offered cut pasture in stalls, ad libitum initially for 10 days, and for a further 28-day period when feeding treatments were imposed. In experiment 1, a total of 37 cows in early or late lactation were offered the same high quality pasture diet either ad libitum or at 0.60 x ad libitum intake. In experiments 2 and 3, 35 and 31 cows which were in early (experiment 2) or late lactation (experiment 3) were offered pasture at 1 of 3 feeding levels: ad libitum, 0.75 x ad libitum. 0.50 x ad libitum intake. In experiment 1 the marginal response was similar, 23.5 and 25.0 g milk fat/kg change in dry matter intake, for cows offered the same diet in early or late lactation. In experiment 2, cows in early lactation showed marginal responses which ranged from 0 to 80 g milk fat/kg dry matter intake and were greater at lower feeding levels and for cows with greater initial milk production. In experiment 3, the marginal response for cows in late lactation was similar to that in experiment 1 (24.4 g milk fat/kg change in DM intake) and was not significantly affected by the level of feeding or by the initial milk production of the cow. Reduced levels of feeding in late lactation appeared to accelerate the changes in milk composition which occur normally in late lactation: increases in the concentration of milk fat and protein; a decrease in lactose concentration. It is concluded that in early lactation, much of the published variation in marginal response can be explained by differences between experiments in levels of feeding studied and in the initial milk yield of the cows. In late lactation there was much less variation in the reported magnitude of the marginal response, and the variation which did exist can be explained by experimental error.

scholarly journals Effect of feeding brown rice grain in a total mixed ration silage on dry matter intake and milk production in lactating dairy cows

2014 ◽  
Vol 85 (4) ◽  
pp. 495-502 ◽  
Author(s):  
Yuko KAMIYA ◽  
Itoko NONAKA ◽  
Masahito TANAKA ◽  
Ikuo HATTORI ◽  
Mitsuru KAMIYA ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Dry Matter ◽  
Brown Rice ◽  
Dry Matter Intake ◽  
Rice Grain ◽  
Total Mixed Ration ◽  
Lactating Dairy Cows ◽  
Effect Of Feeding
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