Variation in relative palatability of different forages fed to rabbits

2008 ◽  
Vol 4 (1) ◽  
Author(s):  
I I Osakwe ◽  
O O Ekwe
Keyword(s):  
Relative Palatability

FURTHER INVESTIGATIONS INTO THE CHEMICAL BASIS OF INSECT–HOST PLANT RELATIONSHIPS IN AN OLIGOPHAGOUS INSECT, PLUTELLA MACULIPENNIS (CURTIS) (LEPIDOPTERA: PLUTELLIDAE)

1963 ◽  
Vol 41 (6) ◽  
pp. 923-929 ◽  
Author(s):  
J. K. Nayar ◽  
A. J. Thorsteinson
Keyword(s):  
Activated Carbon ◽  
Mustard Oil ◽  
Plant Tissues ◽  
Cellulose Powder ◽  
Insect Host ◽  
Feeding Stimulants ◽  
Neutral Alumina ◽  
Powder Activated Carbon ◽  
Layer Chromatography ◽  
Relative Palatability

Samples of nine crystalline mustard oil glucosides including sinigrin were isolated from plant tissues of species in the families Cruciferae and Tropaeolaceae. The isolations were achieved by the use of column chromatography on neutral alumina, cellulose powder, activated carbon; by paper and thin-layer chromatography; and by crystallization from methanol–water mixtures.Feeding responses of fifth instar larvae of Plutella maculipennis (Curtis) were tested on agar–cellulose diets containing individual glucosides at various concentrations in the presence or absence of 0.1 M glucose. The amount of feeding was measured by counts of frass pellets produced by the larvae during the test period. All the above-mentioned glucosides were found to act as feeding stimulants for the larvae of P. maculipennis. However, the relative palatability of these glucosides at the same concentration (20 mg per 10 ml of water in the diet) was found to be in the following order: progoitrin > glucocheirolin = glucoconringiin = glucoerucin > glucotropaeolin = sinigrin = sinalbin > gluconasturtiin = gluconapin. Higher concentrations of the glucosides, gluconasturtiin, and gluconapin were toxic to the larvae.

Relative palatability and growth performance of capoeira species as supplementary forages in the NE-Amazon

2016 ◽  
Vol 218 ◽  
pp. 107-115 ◽  
Author(s):  
Stefan Hohnwald ◽  
Julia Trautwein ◽  
Ari P. Camarão ◽  
Clemens B. Wollny
Keyword(s):  
Growth Performance ◽  
Relative Palatability

Palatability to sheep of the Eragrostis curvula complex. 3. A comparison of naturalised and selected taxa

1988 ◽  
Vol 28 (1) ◽  
pp. 53 ◽  
Author(s):  
WH Johnston
Keyword(s):  
New South ◽  
New South Wales ◽  
Wagga Wagga ◽  
Eragrostis Curvula ◽  
South Wales ◽  
Stocking Rates ◽  
Relative Palatability

The palatability of 20 accessions of E. curvula collected from naturalised populations in New South Wales was compared on 7 occasions with 2 selected accessions previously found to be highly palatable. The experiment was conducted at Wagga Wagga, N.S.W., between January 198 1 and July 1983. The relative palatability of most accessions was substantially similar from rating to rating, despite differences in the extent to which the trial was grazed. Palatability was related to the agronomic group to which the accessions belonged. For the naturalised taxa, Curvula was ranked equal to Tall Chloromelas. but both were more palatable than Short Chloromelas. The naturalised accessions were all less palatable than the selected accessions. It was concluded that the selected accessions were sufficiently palatable to be well utilised in pastures by stock grazing at commercial stocking rates.

Variation in relative palatability to sheep amongGliricidia sepium provenances

1993 ◽  
Vol 22 (3) ◽  
pp. 221-224 ◽  
Author(s):  
A. Larbi ◽  
I. I. Osakwe ◽  
J. W. Lambourne
Keyword(s):  
Relative Palatability

Time taken by growing pigs to consume meals from different varieties of rapeseed

1992 ◽  
Vol 1992 ◽  
pp. 131-131
Author(s):  
R.J. Lambert ◽  
C.G. Hawkins ◽  
M. Ellis
Keyword(s):  
Rapeseed Meal ◽  
Growing Pigs ◽  
Feeding Trial ◽  
Simple Measure ◽  
Relative Palatability

The presence of tannins, sinapins, saponins and glucosinolates in rapeseed meal are known to have antinutritional effects. They may also act as anticonsumptional factors by rendering the meal bitter-tasting and pungent. The principal cause of low palatability of rapeseed meal diets has generally been considered to be the glucosinolates. A feeding trial with growing pigs provided the opportunity to look at the consumption time of diets containing meal from different varieties of double low rapeseed as an Indication of relative palatability. The time taken to eat one kilogram of food was adopted as a simple measure of palatability based on the assumption that if a diet was unpalatable it would be eaten more slowly than one which was relatively more palatable.

Voluntary Intake and Palatability Indices of Pedi Goats fed Different Levels of Acacia karroo Leaf Meal by Cafeteria Method

2015 ◽  
Author(s):  
David Brown ◽  
Jones W. Ng'ambi ◽  
David Norris
Keyword(s):  
Free Access ◽  
Acacia Karroo ◽  
Feeding Programs ◽  
Randomized Design ◽  
Setaria Verticillata ◽  
Completely Randomized Design ◽  
The Tropics ◽  
Different Levels ◽  
Average Body ◽  
Relative Palatability

A study was conducted to determine preference intake and relative palatability indices of tanniniferous Acacia karroo fed to 5 growing male Pedi goats with an average body weight of 19.81 ± 1.83kg. Five feeding troughs were provided to each goat and each animal was exposed to all the experimental diets. A cafeteria feeding approach was used, thus, permitting goats free access to the diet of their choice. Acacia karroo (K) was offered in a mixture with Setaria verticillata (S) hay at five different levels: Diet 1: S80K20, Diet 2: S75K25, Diet 3: S70K30, Diet 4: S60K40 and Diet 5: S50K50. The daily relative palatability indexes (RPI) obtained for each diet were subjected to analysis of variance with feeds as treatments and individual animals as replicates in a completely randomized design. Significant differences (P Diet 4> Diet 3> Diet 2> Diet 1. Diet 5 appeared to be the most preferred by goats with an RPI of 96.91%. Palatability indices were positively and significantly (Pand tannin contents. Results of this study indicate that tannin-rich Acacia karroo leaves when fed in a mixed diet can influence preference and intake by Pedi goats. Palatability studies could be used in designing supplemental feeding programs for ruminant livestock in the tropics.

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