EVALUATION OF TIMOTHY CULTIVARS FOR VOLUNTARY INTAKE AND NUTRIENT COMPONENTS

1988 ◽  
Vol 68 (4) ◽  
pp. 1121-1129 ◽  
Author(s):  
W. N. MASON ◽  
P. M. FLIPOT

Five timothy (Phleum pratense L.) cultivars, Clair, Champ, Milton, Climax and Bounty, were harvested at first flower stage during 2 consecutive years and in the regrowth for 1 yr. The forages were each offered as hay to 15 young rams to evaluate voluntary intake. Five animals were used to determine initial harvest dry matter digestibility. The cultivars varied significantly in voluntary intake at first flower stage. The highest intake (g kg−0.75 d−1) averaged for the years was obtained in the early cultivar Champ (65.9), which was 10% more than that of the medium-late cultivar Climax. The cultivars did not differ significantly in dry matter digestibility. In the regrowth, the relative intakes of the cultivars were essentially reversed from that of the initial harvest. The voluntary intake was substantially higher but the differences among forages were less marked. Climax regrowth voluntary intake was higher (P < 0.05) than all cultivars, except Bounty. A 15% range in digestible dry matter intake was present among cultivars. The ranking of the culivars for digestible dry matter was different than for dry matter yield. Key words: Timothy, Phleum pratense L., voluntary intake, dry matter digestibility

1977 ◽  
Vol 57 (3) ◽  
pp. 955-962 ◽  
Author(s):  
J. C. ST-PIERRE ◽  
G. PELLETIER

An experiment was set up to determine the effect of time and rate of nitrogen fertilization and stage of growth at first cut on yield and digestibility of dry matter and protein content of two timothy (Phleum pratense L.) cultivars, at each of two cuts, No difference in yield or chemical composition was found between cultivars. Highest yields and crude protein contents were measured at rates of nitrogen fertilizer of 112 and 224 kg/ha. Higher yield and protein content were obtained with NH4NO3 applied totally or in split applications in the spring than with urea in the fall. Dry matter digestibility (DDM) was not affected by nitrogen at rates of 56, 112 and 224 kg/ha. First cut was taken at two different stages of growth, and the second cut was taken on the same day in all the plots. At anthesis, yields were higher than at the head stage but DDM and protein content were lower. The opposite was found at the second cut. Except in 1973, total dry matter yield was not affected by the stage of growth at first cut.


1989 ◽  
Vol 69 (1) ◽  
pp. 255-258 ◽  
Author(s):  
P. NARASIMALU ◽  
H. T. KUNELIUS ◽  
K. B. McRAE

Silages prepared from the first-cut and 7-8 wk regrowth of timothy (Phleum pratense L.) and timothy stands with 56% infestation of quackgrass (Elytrigia repens (L.) Neoski) were compared for chemical composition and for their utilization. Quackgrass infestation of timothy had no significant effect on the silage composition, and its intake and apparent digestibility in sheep. The daily retention of N was higher with the timothy-quackgrass than timothy silage (P < 0.05).Key words: Phleum pratense, Elytrigia repens, voluntary intake, apparent digestibility, nitrogen retention


ZOOTEC ◽  
2015 ◽  
Vol 35 (2) ◽  
pp. 328
Author(s):  
Nancy W.H. Tuwaidan ◽  
M. R. Waani ◽  
Rustandi - ◽  
S. S. Malalantang

ABSTRACT INTAKE AND DIGESTIBILITY OF YELLOW MANADO AND JAYA 3 HYBRID CORN SRAWS FOR ONGOLE GRADE CATTLE. Experiment was conducted to determine the intake capacity and digestibility of Manado yellow corn straw (MYCS) and Jaya 3 hybrid corn straw (J3HCS) as single feed for Ongole grade cattle (OGC). Five female OGC were used in this experiment, applied into two periods. The animals were fed with MYCS in the first stage and J3HCS in the second stage. The measured variables were including dry matter intake (DMI), dry matter digestibility (DMD), digestibility of crude protein (DCP) and digestibility of Neutral Detergent Fiber (DNDF). The data were analyzed by T test. The results showed that treatment significantly affected (p <0.05) the DMI, DMD, DCP and DNDF. It can be concluded DMI, DMD, DCP and DNDF of MYCS were higher than those of J3HCS.   Key words: Dry matter Intake, Digestibility, Corn straw, Ongole grade cattle.  


1972 ◽  
Vol 12 (57) ◽  
pp. 378 ◽  
Author(s):  
MJ Playne

Both spear grass and Urochloa grass were cut at six intervals between January and October, near Townsville, Queensland, and the herbages, which ranged in age from 37-296 days, were fed to sheep indoors to compare voluntary dry matter intake, dry matter digestibility, and intake and retention of nitrogen, sulphur, and phosphorus. The dry matter intake and intake of digestible dry matter of Urochloa were greater than those of spear grass but dry matter digestibilities were similar at the same stage of growth. After mid-March, voluntary intake of digestible dry matter of both pasture species by the sheep was less than the amount needed to meet energy requirements. Nitrogen and phosphorus concentrations were higher in Urochloa than in spear grass, but the reverse applied to sulphur. Sheep were in negative nitrogen, sulphur, and phosphorus balance after early March, even though both grasses had been fertilized with superphosphate.


1968 ◽  
Vol 8 (33) ◽  
pp. 413 ◽  
Author(s):  
R Milford ◽  
DJ Minson

The dry matter digestibility and voluntary intake of six varieties of Rhodes grass cut on eight occasions were measured with sheep in metabolism cages. The maximum difference between varieties in digestibility percentage was 2.6 (P<0.01) for monthly regrowths and 1.1 (P<0.05) for older regrowths. The corresponding maximum differences for voluntary dry matter intake (g/W0.75/day) were 2.2 (P<0.05) and 3.5 (P<0.01). The differences in feeding value were therefore small and it was concluded that the chances are not good of selecting Rhodes grass varieties that have a superior feeding value.


2008 ◽  
Vol 88 (2) ◽  
pp. 325-329 ◽  
Author(s):  
S. Pelletier ◽  
G. F. Tremblay ◽  
G. Bélanger ◽  
P. Seguin ◽  
R. Drapeau ◽  
...  

A 1-wk delay after late heading in the harvest of timothy spring growth reduced dietary cation-anion difference (-17%), in vitro digestibilities of dry matter (-7%) and neutral detergent fiber (-10%), and increased neutral detergent fiber concentration (+5%). In summer regrowth, the harvest delay tended to have similar effects, but variations (1-6%) were smaller. Key words: Nutritive value, stages of development, Phleum pratense L., metabolic disorders


1973 ◽  
Vol 53 (4) ◽  
pp. 791-796
Author(s):  
J. C. ST-PIERRE ◽  
M. J. TRUDEL

Timothy (Phleum pratense L.) was grown in pots under controlled conditions. Solutions of 2-chloroethylphosphonic acid (Ethrel) at seven concentrations were sprayed on different plants at six stages of growth. Three cuts were taken on treated plants. Ethrel treatments increased tiller number at each cut. Dry matter yield was significantly decreased by applications of Ethrel at the first cut. Total dry matter yield of the three cuts was the same for all treatments, indicating that yields of the second and third cuts made up yield losses of the first one. Ethrel applications decreased the height of plants at the first cut only. The stage of growth, at the time of Ethrel treatments, also affected results but in a less well-defined manner than did the concentrations.


2010 ◽  
Vol 90 (2) ◽  
pp. 279-283 ◽  
Author(s):  
R G Heendeniya ◽  
D A Christensen ◽  
D D Maenz ◽  
J J McKinnon ◽  
P. Yu

This research evaluated the effect of fibre-protein and can-sugar additions to dehydrated alfalfa pellets on feed acceptance, lactation performance, dry matter intake and apparent dry matter digestibility of dairy cows compared with a standard (pure) alfalfa pellet. The results showed that a two:one ratio of fibre-protein to can-sugar mixture can be added at 150 g kg-1 to a standard alfalfa pellet without affecting the palatability and lactation performance of dairy cows, when the alfalfa pellets are included at 50 g kg-1 (as fed basis) of a total mixed ration (TMR). Key words: Canola fractions, fibre-protein, can-sugar, palatability, lactation performances, dairy cows


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