Use of fat in diets of sheep in hot environments. I. Effects on performance, carcass characteristics and lipid composition of plasma

Ilian, M. A.; Razzaque, Mohammed Abdur; Al-Awadi, A. A.; Salman, A. J.

doi:10.1016/0377-8401(88)90023-5

Cited by 9 publications

(6 citation statements)

References 22 publications

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“…While, ash percentage was not significantly changed (Table 15). However Ilian et al (1988) found that addition of 5% fat into diets did not affect protein, fat and ash percentages of sheep carcass. Also, Zinn (1992) noticed that feeding finishing steers on 6% fat containing diets did not influence body composition.…”

Section: Resultsmentioning

confidence: 84%

“…Feeding 4% or 8% protected fat containing rations had no significant effect on fatty acid composition of muscle lipids except the (P<0.05) higher lauric acid (C12:0) of 4% fat group. Ilian et al (1988);El-Bedawy et al (1996a) and Eweedah et al (1997) found that feeding lambs or bulls fat containing diets had no significant effect on fatty acid composition of eye muscle and carcass lipids. However, Abo-Donia et al (2003) found that feeding 5% Ca-Soap containing diets to Ossimi male lambs or buffalo calves slightly increased Oleic acid (C18: 1), Linoleic acid (C18: 2) and Linolenic acid (C18: 3).…”

Section: Resultsmentioning

confidence: 99%

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Effect of Dietary Protected Fat and Roughage Level on Growth Performance and Carcass Characteristics of Growing-Finishing Lambs

2004

Egyptian Journal of Animal Production

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Sixty male Barki lambs (age 8 month, weight 27.5 Kg) in six similar groups were fed diets containing 10 % or 30 % berseem hay with 0, 4 and 8% Ca-Soaps for 70 days. Feed intakes and body weight were weekly recorded. At the end of the experiment, three lambs from each group were slaughtered to study the effect of protected fat and roughage levels on carcass characteristics and mutton quality. Increasing fat level in diet (P>0.05) increased total body weight gain and average daily gain (ADG). The 8% fat level improved feed conversion ratio (DM and DCP to gain ratio) by 6.4% and 14.3%, respectively. Lambs fed low roughage-high fat showed better body weight gain (16.76 kg); average daily gain (240g /day) and feed conversion ratio (4.5 DM intake/gain and 0.61 DCP intake/gain). Roughage level had no significant effect on body weight gain, average daily gain and feed conversion ratio. Dietary fat level or roughage or their interaction had no significant effect on carcass weight and dressing percentage. Feeding rations containing protected fat had no significant effect on physical properties of meat except the increased (P<0.05) tenderness of the eye muscle of sheep fed 8% fat diets. Protected fat supplement (P<0.05) increased weights of omentum fat, intestinal fat, kidneys fat and total body and ether extract of eye muscle and liver but decreased (P<0.05) protein content of eye muscle. Feeding protected fat had no significant effect on fatty acid composition of eye muscle lipids, except the (P<0.05) higher lauric acid (C12:0) of 4% fat group. Neither fat nor roughage level had significant effect on eye muscle area, eye muscle weight and physical composition of the best 9,10 and 11 th ribs (percentages of lean, fat and bone). Results of chemical composition of whole 9, 10 and 11 th ribs showed that feeding protected fat diets (P<0.05) increased DM and ether extract but decreased (P<0.05) CP percentages compared to the control (0% fat). Ash percentage was not significantly changed. Feeding protected fat to growing lambs resulted in higher average daily gain and higher carcass fats, but it did not alter the percentage of unsaturated fatty acids in carcass fat. Roughage level had no significant effect on either the growth performance or carcass characteristics. (The greater intake of digestible energy by the lambs fed calcium soaps of palm oil may account for the higher average daily gains and fatter carcasses).

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Effect of Dietary Protected Fat and Roughage Level on Growth Performance and Carcass Characteristics of Growing-Finishing Lambs

2004

Egyptian Journal of Animal Production

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“…Comparable results were recorded for sheep by El-Bedawy (1989) and Ammann (1991). However, El-Hag et al (1985) and Ilian et al (1988) reported lower intake for fat supplemented sheep. On the other hand, Pantoja et al (1996) and Elliott et al (1996) reported higher intake when fat was added to the rations.…”

Section: Resultsmentioning

confidence: 86%

Effect of Dietary Protected Fat and Roughage Level on Digestion, Rumen Metabolism and Plasma Lipids of Growing-Finishing Lambs

2004

Egyptian Journal of Animal Production

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Sixty male Barki lambs, 8 month old and 27.5 kg average body weight , were randomly divided into six similar groups. Lambs were fed ration at level of 3.5% of body weight for 70 days. Rations were iso nitrogenous containing 10 % or 30 % berseem hay each with 0, 4 or 8% Ca-Soap. At the end of growth trail, twenty-four metabolism trials were conducted to evaluate nutrient digestibilities, nutritive value of the experimental rations, nitrogen balance and water intakes. Ruminal fluid samples were collected at 0 and 4 hrs post feeding to determine pH, ammonia-nitrogen, total VFA'S concentrations and molar proportions of fatty acids, total nitrogen and non-protein nitrogen. Blood plasma total lipids, triglycerides and cholesterol were also determined. Results indicated feeding 4% calcium soap rations (P<0.05) improved nutrient digestibilities but this effect was not evident by feeding with 8% calcium soap supplement. Increasing roughage from 10% to 30% had no significant effect on nutrient digestibility. Cell wall constituents digestibilities were higher for 30% roughage rations and positively affected by fat supplement. Higher energetic values (DE and TDN) was associated with fat supplement and low roughage levels. The DCP values were not affect by the dietary treatments. Calcium soap supplement significantly improved DE and TDN intakes specially with high roughage level but had no significant effect on DCP intake. Water intake (P<0.05) increased by increasing fat supplement to 8% and roughage level to 30%. Nitrogen balance was not affected by the dietary treatments. Fat Supplement had no significant effect on ruminal parameters. However, increasing roughage level increased (P<0.05) ruminal pH, acetate concentration and acetate: propionate ratio but decreased propionate, iso butyrate and valerate. Ruminal total VFA's concentrations, butyrate and iso valerate were not affected by dietary roughage level. Lower pH and higher total VFA's concentrations, acetate, butyrate, iso butyrate, valerate and iso valerate were found at 4 hrs post-feeding, but propionate and acetate: propionate ratio were not affected by sampling time. Increasing calcium soap level in sheep diet had no significant effect on rumen nitrogen metabolism. However, increasing roughage level (P<0.05) decreased ruminal total nitrogen, non protein nitrogen ammonia nitrogen and true protein nitrogen. All forms of ruminal nitrogen were (P<0.05) lower at 4 hrs post feeding than those before feeding Increasing protected fat level to 4% or 8% of ration dry matter significantly increased plasma total lipids and (P<0.05) triglycerides. Total cholesterol was El-Bedawy et al. 220 (P<0.05) higher for 8% fat group than the control and 4% fat group but increasing roughage level (P<0.05) increased total plasma lipids and total cholesterol but had no significant effect on triglycerides. Total cholesterol (P<0.05), total lipids and triglycerides (P>0.05) were higher at 4 hrs post feeding than those before feeding. Inclusion of 4% calcium soap improved the nutrient utilizati...

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“…Namely Negovanović et al (1983), Ely et al (1988, Ilian et al (1988), have established that increase of diet concentration resulted to some extent in reduction of dry matter consumption per unit of realized gain.…”

Section: Resultsmentioning

confidence: 99%

The effect of beef tallow in lamb nutrition on fattening and carcass characteristics

2009

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Trial was carried out on 60 suckling lambs of Mis sheep population, divided into three groups. Beside milk, lambs consumed alfalfa hay and iso-protein concentrate mixtures (15% CP) ad libitum. Forage mixture I was of standard composition, whereas mixtures II and III contained 4 and 6% of beef tallow, respectively. Energy value of used mixtures I, II and III was 7,29, 7,71 and 7,94 MJ, respectively. Fattening duration was 60 days. Statistical processing of obtained data was performed using standard mathematical-statistical methods. Lambs on treatments I:II:

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Use of fat in diets of sheep in hot environments. I. Effects on performance, carcass characteristics and lipid composition of plasma

Cited by 9 publications

References 22 publications

Effect of Dietary Protected Fat and Roughage Level on Growth Performance and Carcass Characteristics of Growing-Finishing Lambs

Effect of Dietary Protected Fat and Roughage Level on Growth Performance and Carcass Characteristics of Growing-Finishing Lambs

Effect of Dietary Protected Fat and Roughage Level on Digestion, Rumen Metabolism and Plasma Lipids of Growing-Finishing Lambs

The effect of beef tallow in lamb nutrition on fattening and carcass characteristics

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