Feedlot performance, carcass composition, and muscle and fat CLA concentrations of lambs fed diets supplemented with safflower seeds

Kott, R. W.; Hatfield, P. G.; Bergman, J. W.; Flynn, Charles R.; Wagoner, H. van; Boles, J.A.

doi:10.1016/s0921-4488(03)00052-x

Cited by 67 publications

(50 citation statements)

References 27 publications

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“…C18:1 is the most abundant fatty acid which is in agreement with other studies (Kott et al, 2003;Boles et al, 2005;Juarez et al, 2008). Significant influence of the dietary treatment on C18:1 was observed in subcutaneous and omental fat showing highest content in the group fed rapeseed meal and lowest in the DDGS group.…”

Section: Saturated and Monounsaturated Fatty Acidssupporting

confidence: 91%

Effect of various protein sources in feed on the fatty acid composition of adipose depots in lambs

Popova

Yossifiov

Kozelov

et al. 2015

Emir. J. Food Agric

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Section: Saturated and Monounsaturated Fatty Acidssupporting

confidence: 91%

Effect of various protein sources in feed on the fatty acid composition of adipose depots in lambs

Popova

Yossifiov

Kozelov

et al. 2015

Emir. J. Food Agric

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“…The 4.7-6.6 mg CLA g-1 lipid or 0.6-0.8 g CLA 100 g -1 TFA in the LT of lambs in this trial were higher than the CLA concentrations found in control lambs by Mir et al (2000;1.2-3.1 mg CLA g- but similar to the concentrations when safflower oil or seeds were included in the lambs' diet (Mir et al 2000;4.4-8.4 mg CLA g-1 lipid; Kott et al 2003; 0.8 g CLA 100 g -1 TFA). The concentrations of both CLA and TVA in the LT from the lambs in this trial were lower than the concentrations of 1.9 g CLA and 4.7 g TVA 100 g-1 TFA found in lambs that had grown for 17 weeks on their mothers to a carcass weight of 18.5 kg before being slaughtered (Knight et al 2004).…”

Section: Discussionsupporting

confidence: 40%

Conjugated linoleic acid concentration (CLA) in them. longissimus thoracisof the offspring of Romney ewes screened for high and low CLA in their milkfat

Knight

Tavendale

Death

et al. 2004

New Zealand Journal of Agricultural Research

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Total conjugated fatty acid concentration in milk from 131 lactating Romney ewes at about the fourth week of lactation was measured spectrophotometrically to identify 20 ewes with high and 20 ewes with low concentrations of conjugated linoleic acid (CLA) in the total fatty acid (TFA) of their milk. The persistence of these differences in CLA concentration was measured in milk from this and a subsequent lactation. The CLA concentration was also measured in plasma collected from these ewes 6 months after their lambs were weaned and in the m. longissimus thoracis (LT) of the offspring from these ewes. Allocation of ewes to the High CLA and Low CLA groups were confirmed by measuring the CLA concentration in the milkfat using gas liquid chromatography (GLC) (r = 0.73; P < 0.001). High CLA ewes had higher (P < 0.001) concentrations of CLA than Low CLA ewes in milkfat collected in the fourth week (2.55 versus 1.49 ± 0.07 g 100 g -1 TFA) and eighth week (2.18 versus 1.66 ± 0.09 g 100 g -1 TFA) of lactation, during the subsequent lactation (1.36 versus 0.90 ± 0.08 g 100 g -1 TFA), and in plasma collected 6 months after weaning (0.41 versus 0.34 ± 0.02 g 100 g -1 TFA; P < 0.05). Differences between the groups in transvaccenic acid (TVA) concentrations were consistent with the differences in CLA concentrations in milk and plasma. Lambs slaughtered at 28 weeks of age (12 weeks post-weaning) from High CLA ewes had a 37% higher (P < 0.05) CLA concentration in the TFA extracted from the LT than lambs from Low CLA ewes (0.82 versus 0.60 ± 0.06 g 100 g -1 TFA). Single-born lambs from the High and Low CLA groups had a 35% higher (P < 0.01) CLA concentration in the LT than twin-born lambs from these groups (0.81 versus 0.60 ± 0.06 g 100 g -1 TFA), suggesting that differences in CLA concentration in the meat were due to differences in the ingestion of CLA in milk. It is concluded that a higher concentration of CLA in the milkfat of ewes resulted in a higher concentration of CLA in the meat from their lambs and that the ranking of ewes for concentration of CLA in milkfat persisted for at least two lactations.

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“…Our results agree with Castro, Manso, Mantecón, Guirao, and Jimeno (2005) who found no differences for these parameters when lambs received up to 6% of supplementing fat. Likewise, Kott et al (2003) did not observe differences in kidney knob and channel fat weight in an experiment carried out with lambs, whose diet was supplemented with 6% sunflower oil. On the other hand some studies have shown changes related to fat deposition.…”

Section: Discussionmentioning

confidence: 83%

“…( Kott et al, 2003). On the other hand, the use of such oil has been proposed as an alternative to increase the content of PUFA in lamb tissues (Yu et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Animal performance and fatty acid composition of lambs fed with different vegetable oils

et al. 2009

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ARTICLE INFO ABSTRACTTwenty-seven lambs were used to investigate the effects of the inclusion of 4% hydrogenated palm oil (HPO) or sunflower oil (SFO) in the concentrate on animal performance, carcass and meat quality and fat characteristics and fatty acid composition. Animals (16.2 ±0.27 kg initial weight) were fed concentrate (Control, HPO or SFO) and barley straw ad libitum and slaughtered at 25 kg. SFO lambs tended to eat less concentrate than HPO animals (P< 0.10). Neither HPO nor SFO affected any of the carcass characteristics studied, meat pH and meat and fat colour (P> 0.05). SFO decreased proportions of CI 6:0, CI 8:1 Keywords:císJ 2 and clg;3 ( P< 0>05 ) and i ncrea sed C18:l trans (P< 0.001) and C18:2/C18:3 ratio (P< 0.05). Ath-S flow -, erogenicity index was lower (P< 0.05) when SFO was included in the concentrate. HPO did not affected Fattening lambs anc ' ^FO improved fatty acid composition of fattening lambs without affecting animal performance. Fatty acid Atherogenicity

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Feedlot performance, carcass composition, and muscle and fat CLA concentrations of lambs fed diets supplemented with safflower seeds

Cited by 67 publications

References 27 publications

Effect of various protein sources in feed on the fatty acid composition of adipose depots in lambs

Effect of various protein sources in feed on the fatty acid composition of adipose depots in lambs

Conjugated linoleic acid concentration (CLA) in them. longissimus thoracisof the offspring of Romney ewes screened for high and low CLA in their milkfat

Animal performance and fatty acid composition of lambs fed with different vegetable oils

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