Intake, digestion, and nitrogen balance of sheep fed shrub foliage and medic pods as a supplement to wheat straw

Chriyaa, A.; Moore, Kenneth J.; Waller, Steven S.

doi:10.1016/s0377-8401(96)01094-2

Cited by 17 publications

(10 citation statements)

References 39 publications

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“…Apparent quantity of nitrogen retention (AQNR), apparent rate of nitrogen retention (ARNR) and substitution rate (SR, Chriyaa et al, 1997;Ji, 1998), were calculated as follows:…”

Section: Digestibility and Metabolismmentioning

confidence: 99%

See 1 more Smart Citation

Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep

et al. 2008

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“…Apparent quantity of nitrogen retention (AQNR), apparent rate of nitrogen retention (ARNR) and substitution rate (SR, Chriyaa et al, 1997;Ji, 1998), were calculated as follows:…”

Section: Digestibility and Metabolismmentioning

confidence: 99%

“…3). This may have resulted from the fact that higher levels of N found in alfalfa supplementation were not digested and therefore excreted in the feces (Chriyaa et al, 1997). Increases in urine N excretion have generally been attributed to increasing rumen degradation of N (Dawson et al, 1999;Swanson et al, 2000).…”

Section: Utilization Of Dietary Nmentioning

confidence: 99%

Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep

et al. 2008

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“…A number of studies have demonstrated that ingesting saltbush alone does not result in high growth rates in sheep and without supplementation may only be suitable as a maintenance feed only (Wilson, 1966;Weston et al, 1970;Arieli et al, 1989;Correal et al, 1990;Warren et al, 1990;Morecombe et al, 1991;Chriyaa et al, 1997). Therefore, the use of saltbush with a suitable energy supply such as barley may be a strategy to elicit live-weight gain with the potential to produce acceptable carcass weights.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the use of saltbush with a suitable energy supply such as barley may be a strategy to elicit live-weight gain with the potential to produce acceptable carcass weights. Chriyaa et al (1997) and Franklin-McEvoy (2002) showed that a 60 : 40 saltbush and barley combination enabled over 60 g/day live-weight gain.…”

Section: Introductionmentioning

confidence: 99%

The effect of ingesting a saltbush and barley ration on the carcass and eating quality of sheepmeat

Pearce

Pethick

Masters

2008

Animal

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Forage halophytes such as saltbush (Atriplex spp.) are widely used to revegetate Australian saline land and can provide a medium-quality fodder source. An animal house experiment was conducted to investigate differences in the carcass and eating quality of sheep ingesting saltbush from saline land in combination with a barley supplement. Twenty-six merino hoggets (two groups of 13) were fed either a 60 : 40 dried saltbush (Atriplex nummularia): barley (S 1 B) ration or a 33 : 25 : 42 lupins : barley : oaten hay ration (C) for 10 weeks prior to commercial slaughter. After 10 weeks, all sheep were commercially slaughtered and a single loin (from 12th rib to chump) collected from each animal for taste-panel analysis. Carcass weight, total tissue depth over the 12th rib 110 mm from the midline (GR fat depth), ultimate pH and colour were determined and X-ray bone densitometry used to estimate the fat content of the carcass. Blood samples were taken to assess the hormonal response to ingesting these diets and fatty acid profiles of the subcutaneous and intramuscular fat were determined. Both groups grew at the same rate (62 g/day) and had similar hot carcass weights (P . 0.01) (17.2 6 0.3 kg for S 1 B and 17.9 6 0.3 kg for C). However, these live weights may not be high enough to be commercially viable such that saltbush and barley may only be suitable as a maintenance feed. The S 1 B-fed sheep had a significantly (P 5 0.055) lower fat and higher lean content (P , 0.05) than the C group. This is a positive finding as fat denudation is a significant cost to processors and farmers can produce sheep that are depositing less fat or more lean per unit of live-weight gain. The decreased fat and increased lean content were attributed to the higher protein : energy ratio available for production and lower circulating insulin and higher growth hormone of the S 1 B-fed sheep. The lower body-fat content and lower metabolisable energy and digestible organic matter intake did correlate with the sheep fed the S 1 B diet, having a significantly lower percentage of unsaturated fat and equal levels of saturated fat than the C treatment. Diet had no effect on the ultimate pH or colour of the meat. Treatment had no significant effect on any of the eating-quality attributes (P . 0.1). The drying of the saltbush, the shorter length of the experimental period and the low carcass fat content were believed to have contributed to this result. Further field experiments are needed to clarify the benefits to carcass and eating quality of ingesting saltbush.

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“…This reduction in daily weight gain with increasing CT may be due to a combination of reduced voluntary feed intake and low digestibility of nutrients, attributed mainly to the high CT content (Chriyaa et al, 1997).…”

Section: Rd Trial: Lamb Growth Performancementioning

confidence: 99%

Studies on Mixing Tanniniferous Plants With Ammoniated Wheat Straw in Barki Sheep Rations on Digestibility, Performance and Some Blood Biochemical

El-Gohary

Elsheikh

Saber

et al. 2017

Egyptian Journal of Nutrition and Feeds

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ive dietary treatments in three trails were conducted with Barki sheep as follows: 60% Concentrate feed mixture (CFM) and 20% Ammoniated wheat straw ( AWS) as basic diet with 20% Cassava (C) in T1, 20% Prosopis juliflora (P) in T2, 20% Acacia Saligna (A) in T3, 10% C + 10% A in T4 and 10% C + 10% P in T5. In Trial 1, Fifteen Barki rams (43± 1.85 kg) divided into equally five treatment groups to evaluate the effect of condensed tannin sources on apparent nutrients digestibility. The results indicated that the rams fed with T3 (20 % A. Saligna) at a maximum level of tannin (8.33 g /Kg DM) had a lower DMI (9.72 %) than the comparable group (T1) (P<0.05). Lower level of CT (3.87 g/Kg) in T2 diet have higher the digestibility coefficient (P>0.05) of DM, OM, CP, EE and CF than that on T1 diet by 3.90, 3.57, 1.87, 3.16 and 1.04%, respectively. Rumen ammonia concentrations were decreased with increasing of CT content in experimental diets (T3, T4, T1, T5 and T2, respectively). In Trial 2, Twenty five healthy Barki ewes at late pregnancy, weighing 41±2.29 kg at 3-5 years of age were randomly allocated into five dietary treatments to determine the milk yield and composition and some blood components changes due to tannin sources and productive performance of their offesprings. There was a significant increase (P<0.05) in milk yield with decreasing level of CT (6.42%) for ewes fed T2 ration when compared with the T1 group and there is no considerable variability in milk composition traits among all groups. And no significantly differences in average live body weight (ALBW) of offesprings among the all groups. The experimental diet T2 and T5 had significant increased (P<0.05) total protein and globulin (G) compared with the other experimental diets. No significant differences among different treatments regarding albumin was observed. Groups T3 and T4 have higher levels (P<0.05) of Urea-N and Creatinine when compared with the other groups. Values of AST and ALP were significantly higher (P<0.05) for the ewes in group T3 as compared to all groups, and the highest values of ALT were recorded (P<0.05) with T3. In Trial 3, Twenty-five healthy male Barki lambs after weaning, weighing 12±0.64 kg, aged 3-4 month divided into five groups to evaluate the effect of tannin sources on growth performance and some blood components. The lambs fed diets T2 and T5 produced totally (P<0.05) higher final live body weight (29.03 Kg and 28.16 Kg, respectively) at the end of the experimental period (90 days) compared to the other groups. The results indicate that the experimental tanniniferous plants can be incorporated up to 20 % with ammoniated wheat straw without compromising the body health of the animals and the best impact of tanniniferous plants on the performance of Barki sheep was Prosopis juliflora (leaves & twigs), Cassava and Acacia Saligna, respectively.

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Intake, digestion, and nitrogen balance of sheep fed shrub foliage and medic pods as a supplement to wheat straw

Cited by 17 publications

References 39 publications

Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep

Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep

The effect of ingesting a saltbush and barley ration on the carcass and eating quality of sheepmeat

Studies on Mixing Tanniniferous Plants With Ammoniated Wheat Straw in Barki Sheep Rations on Digestibility, Performance and Some Blood Biochemical

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