Dietary Fat in the Nutrition of the Growing Chick

Rand, N. T.; Scott, H. M.; Kummerow, Fred A.

doi:10.3382/ps.0371075

Cited by 74 publications

(29 citation statements)

References 23 publications

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“…Wongsuthavas et al (2006) reported that different fat sources in broiler diet did not effect on energy intake, energy excretion and energy oxidation. Rand et al (1958) studied the effect of supplemental fat in chicks with different protein levels. They demonstrated that addition of corn oil to chick diets resulted in an improvement in energy and protein efficiency.…”

Section: Discussionmentioning

confidence: 99%

Effects of Supplemental Fat to Low Metabolizable Energy Diets on

Rezaei¹

2010

American Journal of Animal and Veterinary Sciences

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Problem statement: Modern diets high in Saturated Fatty Acids (SFA) and low in Monounsaturated (MUFA) and Polyunsaturated (PUFA) fatty acids are mostly blamed for the increased incidence of cardiovascular diseases. Since dietary fatty acids are absorbed by monogastric animals and deposited in their tissues without significant modification, considerable potential exists for the manipulation of the fatty acid profile of poultry meat and eggs. In the present study, effects of different sources and levels of supplemental fat to low energy diets on energy and protein intake and efficiency during grower and finisher periods and cholesterol and Triglyceride (TG) contents of breast and thigh meat of broiler chicks were investigated. Approach: One hundred and eighty 1 day old Ross 308 broiler chicks of both sexes were used for 42 days. The chicks were randomly allocated to 15 pens containing 12 chicks each with 3 replicates and assigned to receive one of the 5 dietary treatments of 2 sources (soybean oil and beef tallow) and 2 levels of fat (20 and 40 g kg −1 ) in a completely randomized design with factorial arrangement. There was also a control treatment (without supplemental fat) in this experiment. All chicks were fed with a commercial starter diet from 1-10 day, where-after fed with isocaloric and isonitrogenous diets. Results: There were significant differences in energy and protein intake and energy and protein efficiency among treatments in all phases of the experiment (p<0.05). Energy and protein intake was significantly higher in the chicks fed with 40 g kg −1 soybean oil that compared to other groups. The effect of different sources and levels of supplemental fat on cholesterol and TG contents of thigh and breast meat of broiler chicks in 42 day of age was significant (p<0.05). Adding 20 g kg −1 soybean oil significantly decrease levels of cholesterol in thigh and breast meat (p<0.05). The highest TG value of breast meat was observed in control chicks compared with other groups (p<0.05). Conclusion: Supplementation of broiler diets with 20 g kg −1 soybean oil improved energy efficiency, decreased cholesterol content of breast and thigh meat of broiler chicks in comparison with other groups.

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Section: Discussionmentioning

confidence: 99%

Effects of Supplemental Fat to Low Metabolizable Energy Diets on

Rezaei¹

2010

American Journal of Animal and Veterinary Sciences

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“…tnote Ta Reference March and Biely (1957) Rand et al Rand et al Rand et al Rand et al 1958 1958) Bossard and Combs (1961) Leong et al (1964) March and Biely (1957) Combs ( These equations are represented graphically in Figure 1. The curves were traced only in the range 2 to 20 per cent of incorporated fat because outside those limits too few or, for some kinds of fats, no data were available.…”

Section: Introductionmentioning

confidence: 97%

The quantification of the effect of increasing levels of various fats on body weight gain, efficiency of food conversion and food intake of growing chicks

Vermeersch¹,

Vanschoubroek²

1968

British Poultry Science

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A study, based on data from the literature, was carried out to establish the quantitative effect of increasing levels of various fats on food intake, weight gain and efficiency of food conversion of growing chicks.The fats concerned were soyabean oil, soyabean soapstock, maize oil, lard, grease and tallow. Their effect was studied by using regression analyses.It was found that the addition of fat, both animal fats and vegetable oils, diminishes food intake. The food intake decreases significantly with rising percentages of fat according to a linear function. No differences in effect between various fats could be demonstrated.The incorporation of various fats improves the weight gain, although the increase was not related to the amount of fat added. The improvement in weight gain differs from one fat to an other.The addition of fats improves efficiency of food conversion, but varies according to the kind of fat. Here the improvement is correlated with the level of fat added.The difference in improvement of food conversion can be only partially explained by differences in absorbability and metabolisable energy of the fats.It is concluded that certain fats ameliorate the efficiency of food conversion and, in some cases, weight gain to a higher degree as may be expected from their metabolisable energy content. It might be possible that some fats possess one or more factors which improve the efficiency of metabolisable energy or exert a protein anabolic action.

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“…However, feed consumption was not significantly affected by fat supplementation, suggesting that the effect of supplemental fat on growth was the result of Increased MEn intake and, possibly, improvement in the utilization of dietary nutrients. These results are in agreement with reports by Yacowitz (1953), Combs and Romoser (1955), Combs et al (1956), Donaldson et al (1957, Rand et al (1958) and . For example, reported that increasing the levels of A-V fat up to 10% of broiler chickens' diets increased body weight gain.…”

Section: Performance Characteristicssupporting

confidence: 94%

“…The use of 6% supplemental fat in the diet increased (P<.01) weight gain and improved (P<.01) feed efficiency, irrespective of the level of sunflower meal in the diet. The beneficial effects of supplemental fat on body weight gain and feed efficiency of chickens has been previously reported by numerous researchers (Yacowitz, 1953;Rand et al, 1958;. The improvement in performance of chicks with the use of supplemental fat in the diet has been attributed to increased energy intake , increased feed intake as a result of improved palatability of the diet (Sunde, 1956) and/(or) improved nutrient utilization due to reduced rate of passage of feed (Mateos and Sell, 1980b).…”

Section: Experiments IImentioning

confidence: 82%

“…Dietary fat per se may also improve the digestibility of protein by reducing the rate of passage (Mateos and Sell, 1981) and allowing more time for digestion and absorption of protein. Rand et al (1958) reported a significant improvement in protein retention with the substitution of dietary fat for glucose in isonitrogenous and isocaloric broiler diets.…”

Section: Dressing Percentage and Measurements Of Segments Of The Gastmentioning

confidence: 99%

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Evaluation of sunflower meal as a feed ingredient in broiler chicken diets: the effect of using supplemental fat or pelleting

Zatari

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Dietary Fat in the Nutrition of the Growing Chick

Cited by 74 publications

References 23 publications

Effects of Supplemental Fat to Low Metabolizable Energy Diets on

Effects of Supplemental Fat to Low Metabolizable Energy Diets on

The quantification of the effect of increasing levels of various fats on body weight gain, efficiency of food conversion and food intake of growing chicks

Evaluation of sunflower meal as a feed ingredient in broiler chicken diets: the effect of using supplemental fat or pelleting

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