Feeding patterns and response to caloric dilution in the Japanese quail

Hemel, Susan B. Van; Myer, James S.

doi:10.1016/0031-9384(69)90186-3

Cited by 29 publications

(15 citation statements)

References 7 publications

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“…Prior to adjusting caloric intake, birds fed diets containing higher concentrations of metabolizable energy (ME) initially increased their feed consumption while those given lower energy diets initially decreased their feed consumption (Van Hemel and Myer, 1969;Ivy and Nesheim, 1973;Cherry, 1979;Cherry et al, 1980;Savory, 1980). These observations suggested that the physical form of the diet exerted considerable influence on feed intake during periods of adaptation to changes in diet composition; such an influence was apparently independent of ME concentrations of the diet.…”

Section: Introductionmentioning

confidence: 88%

Feed Intake Responses of Mature White Leghorn Chickens to Changes in Feed Density

et al. 1983

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We compared feed intake responses of White Leghorn pullets to the dilution of corn-soybean meal, mash diets with cellulose (20%) to decrease feed density and with sand (20%) to increase feed density. Although isocaloric, the intakes of the cellulose-supplemented (CS) and sand-supplemented (SS) diets differed significantly. During the initial period of 24 hr after the diets were assigned, pullets fed the CS diet consumed significantly less feed than controls while those fed the SS diet ate about the same amount as the controls. These differences in feed consumption did not appear to correspond to differences in feed density. Over a period of 49 days, the pullets fed the CS diet consumed significantly more feed but fewer calories, exhibited decreased egg production, and gained less weight than the controls. The caloric intake, egg production, and body weight gain of the pullets fed the SS diet did not significantly differ from control values during this 49-day period.When the pullets fed the CS and SS diets were switched to the basal diet, those previously fed the CS diet initially increased both feed and caloric intakes while those previously fed the SS diet increased caloric intakes. About 10 days were required to compensate to the change in diet. (

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Section: Introductionmentioning

confidence: 88%

Feed Intake Responses of Mature White Leghorn Chickens to Changes in Feed Density

et al. 1983

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“…Thomas and Mayer (1968) and Davies (1977) found in both rats and quail that short-term changes in feeding are associated mainly with meal size and that some long-term regulatory signals also affect meal size directly. Van Hemel and Myer (1969) and Savory (1980) reported that quail ate less food from normal mash than from the same mash diluted with indigestible cellulose powder. They also spent less time eating and showed a more pronounced feeding rhythm.…”

Section: Introductionmentioning

confidence: 96%

Feeding Pattern Responses to Changes in Dietary Energy or Environmental Temperature in the Domestic Fowl

1985

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Two experiments using 64-week-old Single Comb White Leghorn roosters were conducted to determine the meal response to an abrupt change in dietary energy or environmental temperature. In the first experiment, dietary energy level was changed from 200 kcal to either 250 or 150 kcal/75 g. In the second experiment, environmental temperature was changed from 22.2 C to either 13.3 or 30.0 C. Feeding behavior was recorded throughout both experiments. Meal size, meal frequency, and time spent eating a meal were measured. Roosters changed to high-energy or low-energy diets consumed low or high amounts of feed, respectively. Those fed the high-energy diet tended to decrease meal size and meal duration and to increase the number of meals. Roosters changed to the low-energy diet decreased meal size and meal duration and increased the number of meals eaten. The results tend to confirm the chemostatic mechanism in birds as food intake was related to energy in the diet. Roosters changed to high or low environmental temperature responded by decreasing or increasing their feed intake, respectively. Roosters changed to a high environmental temperature significantly decreased meal size, meal duration, and increased the number of meals. Those changed to a low environmental temperature significantly increased meal size and decreased meal frequency and meal duration.

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“…In addition, when male chicks are restricted to the same water intake as female chicks immediately following hatch, there is an absence of development of sexual dimorphism in body weight (Marks, 1986). Although feed intake and water intake are highly correlated (Van Hemel and Meyer, 1969;Zeigler et al, 1972;Marks, 1981), mechanisms that control this relationship are not fully understood.…”

Section: Introductionmentioning

confidence: 97%

Sexual Dimorphism in Broilers Following Periods of Equal Water and Feed Intake

Marks

1987

Poultry Science

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A study involving three experiments was conducted to investigate patterns of feed and water intake following an initial period in which both sexes received the same water or feed allowance. Restriction of water to an equal intake level in males and females from 0 to 10 days resulted in similar feed intake patterns and similar body weights for both sexes. Following exposure to ad libitum water, males immediately consumed 7 to 11% more water than females, while the accompanying change in feed intake was smaller in magnitude (1 to 6%). Restriction of feed to equal intake levels in both sexes from 0 to 12 days resulted in males and females consuming similar amounts of water. Body weights of males were slightly greater than female weights due to differences in feed efficiency. Following placement under ad libitum feed, males consumed more feed than females (8 to 9%). However, the divergence in feed intake following feed restriction between sexes was more gradual than the divergence in water intake following water restriction. These data indicate that feed and water intake patterns of males and females are controlled by inherent mechanisms independent of differences in body weight or maintenance requirements.

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Feeding patterns and response to caloric dilution in the Japanese quail

Cited by 29 publications

References 7 publications

Feed Intake Responses of Mature White Leghorn Chickens to Changes in Feed Density

Feed Intake Responses of Mature White Leghorn Chickens to Changes in Feed Density

Feeding Pattern Responses to Changes in Dietary Energy or Environmental Temperature in the Domestic Fowl

Sexual Dimorphism in Broilers Following Periods of Equal Water and Feed Intake

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