scholarly journals Food and feeding behaviour of Mozambique tilapia (Oreochromis mossambicus Peters) from Borna Reservoir of Maharashtra, India

2016 ◽  
Vol 4 (3) ◽  
pp. 431 ◽  
Author(s):  
Vishwas Balasaheb Sakhare ◽  
Shivaji Gyanba Jetithor
Keyword(s):  
Food Analysis ◽  
Aquatic Insects ◽  
Feeding Behaviour ◽  
Oreochromis Mossambicus ◽  
Summer Season ◽  
Mozambique Tilapia ◽  
Food Items ◽  
Food And Feeding

The food analysis of 80 specimens of Oreochromis mossambicus collected from Borna Reservoir of Maharashtra, India revealed that the food  of juveniles mainly consisted of rotifers (35%), followed by copepods (30%), Chlorophyceae (20%), Bacillariophyceae (10%)  and aquatic insects (5%). While the food items recorded in the gut of adults were Chlorophyceae (40%), followed by Bacillariophyceae (30%), rotifers (15%), copepods (10%) and aquatic insects (5%). During present study it was found that the juveniles of O. mossamobicus mainly feed on zooplankton, and adults on phytoplankton. Intense feeding was noticed during summer season and juveniles were the active feeders.

Food and Feeding Behaviour of Cattle and Ponies in the New Forest, Hampshire

1987 ◽  
Vol 24 (2) ◽  
pp. 369 ◽  
Author(s):  
R. J. Putman ◽  
R. M. Pratt ◽  
J. R. Ekins ◽  
P. J. Edwards
Keyword(s):  
Feeding Behaviour ◽  
Food And Feeding ◽  
New Forest

Age and food hardness affect food handling by insectivorous bats

2007 ◽  
Vol 85 (9) ◽  
pp. 985-993 ◽  
Author(s):  
E.E. Fraser ◽  
M.B. Fenton
Keyword(s):  
Optimal Foraging ◽  
Feeding Behaviour ◽  
Eating Behaviour ◽  
Myotis Lucifugus ◽  
The Other ◽  
Food Handling ◽  
Insectivorous Bats ◽  
Male And Female ◽  
Food Items ◽  
And Gender

Eating behaviour can vary with age, experience, and gender, as well as food hardness. This variation can contribute to intraspecific dietary differences and may result in variable definitions of optimal foraging and decreased intraspecific competition. We quantified feeding behaviour of insectivorous bats eating hard and soft mealworm-based food items based on the bats’ ability to consume and manipulate food items, consumption time, chew frequency, and total chews to consume. Adult Myotis lucifugus (LeConte, 1831) were more successful at both consuming and manipulating mealworms and consumed mealworms more quickly, with greater chew frequency and in fewer chews, than did subadults. Adults chewed mealworm viscera more frequently than did subadults but showed no differences in the other variables. Adult Eptesicus fuscus (Beauvois, 1796) consumed mealworms more quickly and with fewer chews than did subadults but showed no differences in the other variables. There were no differences between adult and subadult E. fuscus when consuming mealworm viscera. Male and female M. lucifugus did not differ significantly when eating either mealworms or mealworm viscera. There was no change in subadult consumption time of mealworms over the summer. Age-based differences in eating abilities may play a role in defining optimal foraging and dietary composition in insectivorous bats.

scholarly journals Effects of 17ß-estradiol Hormone on Growth and Sex Differentiation in the Mozambique Tilapia (Oreochromis mossambicus, Peters, 1852)

2019 ◽  
Vol 34 (1) ◽  
pp. 14-21
Author(s):  
Karl Christofer Kingueleoua Koyakomanda ◽  
Muamer Kürşat Fırat ◽  
Cüneyt Süzer ◽  
Serhat Engin ◽  
Müge Hekimoğlu ◽  
...  
Keyword(s):  
Sex Differentiation ◽  
Oreochromis Mossambicus ◽  
Mozambique Tilapia

Sex Differences in Feeding Behaviour at Feeding Station Scale in Soay Sheep (Ovis Aries)

Behaviour ◽  
2004 ◽  
Vol 141 (8) ◽  
pp. 999-1020 ◽  
Author(s):  
◽  
◽  
Keyword(s):  
Feeding Behaviour ◽  
Ovis Aries ◽  
Intake Rate ◽  
Same Sex ◽  
Soay Sheep ◽  
Food Items ◽  
Feeding Station ◽  
Foraging Decisions ◽  
Mouth Size ◽  
Mechanistic Response

AbstractHerbivorous ungulates live in a spatially heterogeneous environment making foraging decisions at a range of hierarchical scales, from bite size to landscape. We investigated the factors that control intake rate in Soay sheep (Ovis aries) when discrete items of food were sparsely distributed at the feeding station scale. Within the feeding station we varied the difficulty of accessing food, distance between items of food, difficulty of finding the food and complexity of the feeding station and recorded how intake rate responded in relation to body size, mouth size and the sex of the animal. Our findings demonstrated how increasing difficulty of accessing food, and increasing complexity of the feeding station negatively affected intake rate. The expected mechanistic response that smaller animals or animals with smaller mouth size were better at handling discrete small items of food, was overridden by individual and sexual differences in behaviour. We also considered that intake rate within a feeding station could be maximised by optimising the spatial pattern of offtake, and the results clearly indicated that both sexes tended to show clustered patterns of offtake. Animals of the same sex responded in a similar way to the difficulty in handling food items; males persevered more than females and consequently were less handicaped by having larger mouths. We discussed these results in relation to behavioural and body mass differences between the sexes and animals.

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