Influence of dietary fat source and copper supplementation on broiler performance, fatty acid profile of meat and depot fat, and on cholesterol content in meat

Skřivan, M.; Skřivanová, V.; Marounek, M.; Tůmová, E.; Wolf, J.

doi:10.1080/713654978

Cited by 79 publications

(43 citation statements)

References 20 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparable results were obtained by Van Nevel et al (2000) and Leikus et al (2004). The data is in accordance with the results obtained by Skrivan et al (2000) in broiler chickens and gave evidence that the lipid content of SFA and MUFA depend rather on the de novo synthesis than on dietary lipid intake. Lupine inclusion in the diets caused a significant increase of linolenic acid levels in groups E2 and E3.…”

Section: Discussionsupporting

confidence: 80%

The effect of white lupine on the performance, health, carcass characteristics and meat quality of market pigs

Zralý¹,

Písaříková²,

Trčková³

et al. 2007

Vet. Med. - Czech

View full text Add to dashboard Cite

29Due to the fact that the use of feed of animal origin in the nutrition of monogastric animals has been limited, an essential problem arose as how to replace a high quality animal protein without adverse effect on animal health and performance. Most European countries are dependent on imported soy, which is a source of protein for poultry and pig diets. The heat treatment of soy is necessary for inactivation of anti-nutritional substances. Moreover, some soy cultivars contain estrogen-like agents (Sommer, 2003). The use of alternative home prepared diets with a high nutritional value and of reasonable price is attractive. Lupine seeds meet these requirements among leguminous plants cultivated in our country.According to a prospective study (Dijkstra et al., 2003) lupine has been included among eight potential vegetable sources of protein for the use in feed and food production. The seeds of sweet lupine cultivars (Lupinus albus, L. angustifolius, L. luteus) contain 28 to 48% crude protein (CP) in dry matter (DM), which depends on the lupine cultivar and ABSTRACT:The purpose of the present study was to assess the effect of diets for market pigs with 20% inclusion of lupine seeds, cv. Amiga, on the performance, health status, carcass characteristics, fatty acids (FA) profile of meat lipids and nutritional and sensory parameters of meat. Another purpose was to increase the nutritional value of a cereal-lupine diet (E1) by supplementation with lysine, methionine, threonine (E2) or fat (E3) and to perform a comparison with control diets containing animal protein (C1) or soy (C2). The experiments were performed on 50 pigs (50% males, 50% females) with initial body weights of 35.6 ± 2.2 kg, fed isonitrogenic and isoenergetic diets partly ad libitum for 90 days. Feed intake was not adversely affected by lupine inclusion. The daily body weight gain (BWG) was significantly higher (P < 0.05) in group E3 in comparison with the cereal-lupine diet group (E1) and the other groups by 12.6 to 15.9% during the initial 30 days of experiment. The highest BWG (0.88 ± 0.07 kg/kg) during the entire experimental period was obtained with the fat containing diet (E3); that was non-significantly higher by 2.3 to 10.0% in comparison with the other diets. The feed conversion rate was reduced in groups E3 and E2 (2.55 and 2.58 kg/kg BWG) by 3.1 to 7.6% in comparison with groups C1, C2 and E1. No adverse effect of the lupine containing diet was observed on the carcass characteristics or the nutritional quality of the meat. Optimum content of linolenic acid in lupine seeds had a favourable effect on n-6/n-3 polyunsaturated FA ratio in meat lipids of group E3 in comparison with groups C1 and E1 (P < 0.05). By sensory meat analysis, significantly better characteristics were found for texture, juiciness (P < 0.01, P < 0.05) and taste in E3 in comparison with groups C1, C2 and E1. The obtained results indicate that animal and soy protein may be replaced with lupine, tested in the present study, in case a diet is supplemented with amino acids an...

show abstract

Section: Discussionsupporting

confidence: 80%

The effect of white lupine on the performance, health, carcass characteristics and meat quality of market pigs

Zralý¹,

Písaříková²,

Trčková³

et al. 2007

Vet. Med. - Czech

View full text Add to dashboard Cite

show abstract

“…In 11-28 and 29-42 day of age, protein intake of chicks fed with 20 g kg −1 beef tallow was lower than other groups. Skrivan et al (2000) observed that substitution of animal fat with vegetable oil decreased the muscles cholesterol content of broiler chicks. Cholesterol is absent in vegetable oils.…”

Section: Discussionmentioning

confidence: 99%

Effects of Supplemental Fat to Low Metabolizable Energy Diets on

Rezaei¹

2010

American Journal of Animal and Veterinary Sciences

View full text Add to dashboard Cite

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.

show abstract

“…The relatively low dietary copper content administered to group 3 in experiment 1, 35 mg/kg, reduced (P < 0.01) EPA and DPA (Table 3). On the contrary, 200 mg Cu/kg and 50 mg vitamin E/kg feed with 6% rapeseed oil did not influence EPA and DHA in breast muscle lipids nor in abdominal fat of broilers; it was related to a higher supply of MUFA by 1/2 (Skřivan et al, 2000). The increase in monounsaturated fa�y acids a�er copper supplements in experiment 1 improved the cardioprotective composition of fat because MUFA reduce LDL-cholesterol significantly (Williams et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…Many monounsaturated fa�y acids are contained in rapeseed oil that is cheap and easily available. In comparison with lard dietary rapeseed oil administered to chickens significantly decreased SFA and increased PUFA in intramuscular and abdominal fat of chickens (Skřivan et al, 2000).…”

mentioning

confidence: 99%

Influence of dietary vitamin e and copper on fatty acid profile and cholesterol content of raw and cooked broiler meat

Skřivanová¹,

Skřivan²,

Tůmová³

et al. 2004

Czech J. Anim. Sci.

View full text Add to dashboard Cite

ABSTRACT:We examined the influence of a diet containing 4% of rapeseed oil, 35 mg or 126 mg copper and supplement of 100 mg vitamin E per 1 kg on fa�y acid profile and cholesterol content in raw and cooked broiler leg meat. Copper was added to feed mixtures as CuSO 4 .5H 2 O. The fa�y acid profile and cholesterol content were also determined in raw, stewed and roasted meat of broilers receiving the same diet but with a supplement of 20 mg vitamin E. The results showed that 126 and 35 mg Cu/kg significantly increased oleic acid content. Monounsaturated fa�y acids accounted for 51% and 52% of all fa�y acids. The relatively low copper concentration of 35 mg/kg feed with a major portion of soybean, wheat and maize and vitamin E supplementation of 100 mg/kg reduced (P < 0.01) EPA by 17%, DPA by 16% and DHA by 11 and 15% (P < 0.05). All tested copper doses reduced cholesterol: 126 mg Cu by 22%, 35 mg by 6% and 126 mg in combination with 35 mg copper in relation to broiler age by 7% (P < 0.05); none of the cooking procedures influenced cholesterol. Meat cooking in experiment 1 did not influence the content of any fa�y acid. Copper × cooking interactions were insignificant for all fa�y acids and cholesterol. In experiment 2 more changes in the numerical values of fa�y acids were caused by stewing compared to roasting. Among the valuable fa�y acids n-3 long chain acids were influenced by both cooking procedures to the largest extent. Docosahexaenoic acid was reduced to about 60% of the original value (P < 0.05). On the other hand, a decrease in myristic acid by 14% in stewed meat and 12% in roasted meat (P < 0.05) was positive.

show abstract

Influence of dietary fat source and copper supplementation on broiler performance, fatty acid profile of meat and depot fat, and on cholesterol content in meat

Cited by 79 publications

References 20 publications

The effect of white lupine on the performance, health, carcass characteristics and meat quality of market pigs

The effect of white lupine on the performance, health, carcass characteristics and meat quality of market pigs

Effects of Supplemental Fat to Low Metabolizable Energy Diets on

Influence of dietary vitamin e and copper on fatty acid profile and cholesterol content of raw and cooked broiler meat

Contact Info

Product

Resources

About