Performance and carcass characteristics of Sudan desert sheep and goats on high roughage diets with added fat

Hag, M. G. El; Kurdi, O. I.; Mahgoub, S.O.

doi:10.1016/0377-8401(85)90050-1

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…In dry season, therefore, fodder tree leaves become an important source of nutrients for livestock in Sudan. El-Hag (1985) reported that grasses increased their levels of fibrous fractions with a high ash concentration, while decreased their levels of crude protein and total soluble sugars as the dry season progressed, which resulted in poor nutritive value for animals. Grazing sheep in a woodland Savannah pasture in Sudan has been required to provide an energyprotein supplement which sustains its productivity as the dry season progressed from the end of rainy season onward (Mohammed and Salih, 1991).…”

Section: Introductionmentioning

confidence: 99%

Nutritive Evaluation of Some Fodder Tree Species during the Dry Season in Central Sudan

Elseed¹,

Amin²,

Khadiga³

et al. 2002

Asian Australas. J. Anim. Sci

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The potential nutritive value was studied on leaves of seven fodder trees in Central Sudan during dry season at two distinct periods, the early dry and the late. The chemical composition, mineral concentration, in vitro organic matter digestibility (IVOMD), in situ OM or nitrogen degradability and estimated metabolizable energy showed a wide variation among fodder tree species and between different periods of the dry season. Crude protein (CP) ranged from 285 to 197 g/kg DM at early dry season, with a significant reduction in late dry season. Ziziphus spina-christi and Balanites aegyptiaca showed the least reduction in CP content. The NDF, ADF and lignin were about 200, 160 and 19 g/kg DM, respectively at the early period, and significantly increased at the late period of the dry season, except for lignin of Z. spina-christi. For mineral concentration, all fodder tree leaves were rich in calcium but poor in phosphorus. In situ OM degradability significantly decreased at the late period of dry season, but values remained as high as over 600 g/kg OM. At both periods, Z. spina-christi showed the highest value, while the lowest was recorded in Acacia seyal. The IVOMD showed a similar trend to those of in situ OM degradability, except for A. seyal. The nitrogen degradability was highest in B. aegyptiaca and lowest in Z. spina-christi at both periods. A significant and positive correlation had existed between CP and IVOMD or in situ OM degradability (r=0.68, p<0.05; r=0.77, p<0.05, respectively). Also, a significant but negative correlation was found between condensed tannins and nitrogen degradability (r=-0.87, p<0.01). Results demonstrated that Z. spina-christi potentially has a good nutritive value as dry season feed or supplement, while A. seyal tends to be less promising. A. nubica and B. aegyptiaca may be a useful source for degradable protein, even though it may have a limited supply of energy to animals. A. tortilis, A. mellifera and A. ehrenbergiana may have potential value for a supplementation of energy or protein, if they were harvested in the early dry season or in wet season as preserved feed. It is highly recommended to supplement with an appropriate amount of phosphorus when these fodder trees were used.

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Section: Introductionmentioning

confidence: 99%

Nutritive Evaluation of Some Fodder Tree Species during the Dry Season in Central Sudan

Elseed¹,

Amin²,

Khadiga³

et al. 2002

Asian Australas. J. Anim. Sci

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“…Bayourthe et al (1993) found that nitrogen retention was improved due to decrease in both fecal and urinary nitrogen excretion of fat fed sheep. In contrary, El-Hag et al (1985) found that feeding fat containing diet tended to (P<0.05) decrease nitrogen intake and retention for sheep and goats. Feeding fat had no significant effect on ruminal parameters (Table 13).…”

Section: Resultsmentioning

confidence: 76%

“…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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“…The effect of concentrate supplementation of lambs born to concentrate supplemented ewes on meat quality attributes shown in Table 5, indicated that cooking loss increased, while water holding capacity deteriorated significantly (p<0.001) in meat of lambs finished on natural grazing than those given concentrate supplementation. Concentrate feeding is known to increase carcass fatness which will improve meat water holding capacity and reduce cooking less 21 . No significant (p<0.05) differences in meat color were found among the treatment groups, but redness color co-coordinate was higher in the meat of lamb of group (A), then decrease gradually in lamb of group (B), (C) and (D) respectively, possibly due to the residual effect of concentrate feeding of their dams.…”

Section: Discussionmentioning

confidence: 99%

Meat Quality and Carcass Characteristics of Lambs Born to Supplemented Hamari Ewes, Sudan

Bushara,

Babiker,

Ibrahim

et al. 2024

Asian J. Biol. Sci

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Background and Objectives: In the Sudanese economy, the livestock sector plays an important role, with sheep producing lamb and mutton mainly for local consumption and exportation. As a result, feed supplementation together with natural grazing could improve production in terms of quality and quantity. Therefore, this study investigated carcass characteristics and meat quality of lambs born to Sudanese desert ewes that were fed with concentrated supplements in the open range. Materials and Methods: Ninety ewes were randomly divided into three groups A, B and C (n = 30). Before being introduced to the rams, groups A and B received concentrated supplements for 30 days, while group C (control) did not receive concentrated supplements. Lambs from each group grazed on natural pasture during the day and received a concentrated supplement at mealtime. Weaned lambs born to groups A and B received concentrated supplements ad libitum for 60 days, while lambs born to group C were only allowed to graze on natural pasture. Thereafter all lambs were slaughtered to measure their carcass qualities. Results: The slaughter and carcass (hot, cold and half) weights and the empty body weight were heavier (p<0.05) in all treatment groups, with no significant differences. All groups had no significant differences in dressing percentage and wholesale cuts. There was an increase (p<0.001) in muscle composition percentages in all treatment groups. There was an increase in the protein and fat percentages and a decrease in the moisture in all treatment groups. Conclusion: It was concluded that providing concentrated supplements to lambs and ewes improved the lamb's meat quality.

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Performance and carcass characteristics of Sudan desert sheep and goats on high roughage diets with added fat

Cited by 8 publications

References 7 publications

Nutritive Evaluation of Some Fodder Tree Species during the Dry Season in Central Sudan

Nutritive Evaluation of Some Fodder Tree Species during the Dry Season in Central Sudan

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

Meat Quality and Carcass Characteristics of Lambs Born to Supplemented Hamari Ewes, Sudan

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