Effects of stocking rate and physiological state of meat goats grazing grass/forb pastures on forage intake, selection, and digestion, grazing behavior, and performance

2013 ◽  
Vol 154 (1-3) ◽  
pp. 82-92 ◽  
Author(s):  
A.R. Askar ◽  
T.A. Gipson ◽  
R. Puchala ◽  
K. Tesfai ◽  
G.D Detweiler ◽  
...  
Keyword(s):  
Physiological State ◽  
Stocking Rate ◽  
Grazing Behavior ◽  
Meat Goats ◽  
Forage Intake ◽  
And Performance

Forage Intake and Performance of Lactating Beef Cows Grazing High or Low Quality Pastures1

1979 ◽  
Vol 48 (3) ◽  
pp. 692-700 ◽  
Author(s):  
J. W. Holloway ◽  
W. T. Butts ◽  
J. D. Beaty ◽  
J. T. Hopper ◽  
N. S. Hall
Keyword(s):  
Beef Cows ◽  
Forage Intake ◽  
And Performance

scholarly journals Interference of Noxious Shrubs on Grazing Behavior by Bovines

2019 ◽  
Vol 37 ◽  
Author(s):  
S.R. MARCHI ◽  
H.M. SILVA ◽  
C.F. FERREIRA ◽  
R.F. MARQUES ◽  
J.B. MORAES
Keyword(s):  
Experimental Design ◽  
Factorial Design ◽  
Block Design ◽  
Negative Influence ◽  
Main Stem ◽  
Weed Species ◽  
Grazing Behavior ◽  
The Real ◽  
Forage Intake ◽  
Animal Grazing

ABSTRACT: The grazing behavior practice by bovines can be positive or negatively influenced by the pasture structure where the animal is inserted. Several factors determine the pasture structure and the presence of weeds is considered one of the most important. This study aimed to assess the effect of species with and without stiff structures over the grazing behavior of bovines in pasture areas. The experimental design was a split block design with four replications, in which treatments were arranged in a 4 x 3 factorial design: four weed species (Zanthoxylum rhoifolium, Cnidoscolus urens, Dasyphyllum brasiliensis, and Luehea divaricata) associated with three proximity strips of weeds: 0-50, 50-100, and 100-150 cm in relation to the main stem of the studied weed. Forage intake by animals was measured by determining the real forage offers at 0, 3, 6, 9, and 15 days after the beginning of animal grazing (DAP). The presence of noxious shrubs influenced bovine grazing behavior. The influence on the intake is most evident in the presence of plants that promote animal discomfort. The species Z. rhoifolium, C. urens, and D. brasiliensis were the weeds with the greatest influence on feed access among the species that have stiff structures. The negative influence on grazing behavior is higher in the proximity strip closest to the plant, i.e. 0-50 cm from the main stem of the weed.

Influence of Lasalocid Level on Forage Intake, Digestibility, Ruminal Fermentation, Liquid Flow and Performance of Beef Cattle Grazing Winter Range1

1987 ◽  
Vol 65 (3) ◽  
pp. 777-785 ◽  
Author(s):  
K. A. Jacques ◽  
R. C. Cochran ◽  
L. R. Corah ◽  
T. B. Avery ◽  
K. O. Zoellner ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Liquid Flow ◽  
Cattle Grazing ◽  
Ruminal Fermentation ◽  
Fermentation Liquid ◽  
Forage Intake ◽  
And Performance

scholarly journals THE EFFECT OF MOISTURE CONTENT OF FORAGE STORED IN POLYVINYL SILOS ON INTAKE AND PERFORMANCE OF DAIRY COWS

1964 ◽  
Vol 44 (2) ◽  
pp. 125-131 ◽  
Author(s):  
V. S. Logan ◽  
P. S. Haydon
Keyword(s):  
Moisture Content ◽  
Dry Matter ◽  
Milk Composition ◽  
Matter Content ◽  
Dry Matter Intake ◽  
Dry Matter Content ◽  
Forage Intake ◽  
Silage Quality ◽  
And Performance ◽  
Gas Tight

Legume–grass forage was ensiled two seasons in 25-ton polyvinyl-encased stacks at dry matter (D.M.) levels of 22 to 37% or stored as field-cured hay. The polyvinyl sleeve coverings provided initial gas-tight conditions. High losses occurred in the high D.M. (32 to 37%) silage during the feeding-out period. Silage quality, as indicated by volatile fatty acid ratios, proximate principles, and digestibility coefficients, was not significantly influenced by D.M. content. When cows were fed the lower D.M. (22 to 29%) silages and hay, forage intake was inversely related to its dry matter content. Intake of high D.M. silage appeared abnormally low. Milk yields appeared to be more consistently influenced by small variations in grain intake than forage dry matter intake through both trials. Milk yields from silages were greater than from hay per unit of D.M. intake. Moisture content of forage had no significant effect on milk composition as indicated by percentage of butterfat, solids-not-fat, or protein.

Extensification — implications for animal performance, health and welfare

1994 ◽  
Vol 18 ◽  
pp. 43-50 ◽  
Author(s):  
A. Waterhouse
Keyword(s):  
Research Work ◽  
Stocking Density ◽  
Economic Factors ◽  
Stocking Rate ◽  
Animal Performance ◽  
Experimental Protocol ◽  
Land Area ◽  
Farm Scale ◽  
And Performance ◽  
The Uk

AbstractPressures to reduce stocking densities (extensify) are arising for a number of reasons. There are two main options once the decision to reduce stocking occurs: (1) to maintain management and physical inputs pro rata to remaining livestock which may or may not have full access to the same land area; (2) to reduce management and/or physical inputs to remaining stock because of real or perceived increases in availability of grazed resources to remaining livestock. These two options have widely different implications for the health, welfare and performance of the extensified systems. A third option open to producers is merely to reduce inputs, de-intensify, without reducing stock numbers. All the options raise major questions in relation to their benefit or otherwise to ecological or landscape values which tend to be underpinning these initiatives. However, significant uncertainty arises as to how producers will respond. Economic factors will play a part in justifying changes and levels of compensation deemed adequate. Levels of animal performance are crucial in terms of economic viability and as an indicator of animal welfare. Three programmes of research work are in hand in the UK which address these concerns and the associated impact on the environment. At ADAS's Redesdale and Pwllpeiran Farms the experimental protocol has been to reduce stocking rate with no change in inputs per ewe. At SAC's Kirkton and Auchtertyre unit a different farm scale strategy has been adopted. Here stock numbers have been reduced, but alongside these physical (food) and management inputs (labour) have also been reduced. Preliminary data on animal performance from all experiments suggests no improvement in animal performance as a result of reduced stocking density. In the latter study, where inputs per ewe have also been reduced, reduced output per ewe has been found, partly as a result of increased lamb mortality.

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