Effects of dietary supplement of rumen undegradable protein upon carcass composition of fat-tail Awassi sheep

Hassan, Shaker A.; Jassim, Rafat Al; Al-Ani, A.N.; Abdullah, N.S.

doi:10.1016/0921-4488(91)90031-k

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…Cottonseed meal (CSM) and sorghum grain (SG) are common feed ingredients used in livestock diets that can also be replaced by DDGS in small ruminant production systems, notably for fattening lambs ( Whitney and Braden, 2010 ; Hodges et al, 2020a ). Furthermore, DDGS contains high levels of rumen undegradable protein (RUP; 45% of total protein; Belyea et al, 2010 ) and sulfur (S, 0.11%-0.84%; Liu, 2011 ), which can enhance growth and wool production ( Hassan et al, 1991 ; Castro-Pérez et al, 2014 ), and fiber that help reduce acidosis problems ( Klopfenstein, 1996 ). Maximizing the inclusion rate of DDGS in small ruminant diets without negatively affecting growth, health, or end products will benefit not only corn growers and the ethanol industry but also the sheep industry by potentially reducing feed costs ( Felix et al, 2012 ; Hodges et al, 2020b ; Quadros et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Replacing cottonseed meal and sorghum with dried distillers’ grains with solubles enhances the growth performance, carcass traits, and meat quality of feedlot lambs

Quadros¹,

Whitney²,

Kerth

2022

Translational Animal Science

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We evaluated the impacts of substituting cottonseed meal (CSM) and sorghum grain (SG) with dried distillers` grains with solubles (DDGS) in lamb feedlot diets on the dry matter intake (DMI), the growth performance, blood serum analysis, feces phosphorus (P) and nitrogen (N), wool production and quality, carcass traits, adipose tissue fatty acid profiles, and sensory panel tests. For 72 d, Rambouillet wether lambs (n = 44, initial body weight, BW = 28.8 ± 3.3 kg) were individually fed ad libitum pelleted diets containing DDGS that replaced 0% (0DDGS), 25% (25DDGS), 50% (50DDGS), or 75% (75DDGS) of the CSM and SG in a completely randomized design trial. Linear and quadratic effects of DDGS levels on the response variables were analyzed. Treatment × day interactions (P < 0.001) were observed for BW and DMI. As the DDGS level was increased, DMI (from d 21 to d 70), lamb BW (from d 56 to d 70), average daily gain, blood urea nitrogen and P, and fecal P linearly increased (P ≤ 0.05). Fecal N quadratically increased (P = 0.01), but no effects were found for gain:feed, blood insulin-like growth factor-1, or calcium. No differences in wool production or most of the wool quality parameters were detected. Adipose tissue stearic acid linearly increased (P = 0.02), linoleic acid quadratically increased (P = 0.01), and oleic acid tended to quadratically decrease (P = 0.08) as the DDGS increased in the diets. Increasing the DDGS level in the diets quadratically increased the hot carcass weight (P = 0.02), backfat thickness (P = 0.04), and body wall thickness (P < 0.001) while having no impact on the longissimus muscle area. As the DDGS increased in the diet, juiciness, tenderness, and overall acceptability linearly increased (P ≤ 0.05), while having no effect on the cook-loss, flavor intensity, or off-flavor detectability. Replacing 50% of CSM and SG with DDGS improved growth performance and enhanced the carcass and meat quality.

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Section: Introductionmentioning

confidence: 99%

Replacing cottonseed meal and sorghum with dried distillers’ grains with solubles enhances the growth performance, carcass traits, and meat quality of feedlot lambs

Quadros¹,

Whitney²,

Kerth

2022

Translational Animal Science

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“…In general, there were no significant differences among all carcass linear dimensions, carcass cut weights and dissected loin tissue weights at the same carcass weight for both treatments (protein source and formaldehyde treatment). Hassan et al (1991) investigated the response to supplementation with rumen undegradable nitrogen (RUN) given with diets of either 70:30 or 30:70 roughage:concentrate ratio, upon carcass composition of fat-tail Awassi sheep. The physical composition of the main wholesale cuts and dressing-out % were not affected by RUN supplementation or roughage:concentrate ratio.…”

Section: Discussionmentioning

confidence: 99%

“…Results of effect of formaldehyde treatment of protein sources in ruminant have been variable. Peter et al (1971) reported a significant improvement in the performance of lambs fed soybean treated with formaldehyde, while others (Schmidt et al, 1973;Clark et al, 1974;Hassan et al, 1991) reported little or no effect of treating soybean meal with formaldehyde especially in those lambs fed a highconcentrate diet. Soybean treated with formaldehyde fed to steers did not improve daily gain; however it had a significant effect on improving the FCR (Spears et al, 1980).…”

Section: Introductionmentioning

confidence: 98%

The Effect of Protein Source and Formaldehyde Treatment on Growth and Carcass Composition of Awassi Lambs

Abdullah¹,

Awawdeh²

2004

Asian Australas. J. Anim. Sci

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A trial with twenty-four newly weaned Awassi lambs (initial body weight=21.5±0.8 kg) was conducted using a 3×2 factorial design to study the effect of feeding three sources of protein supplements (soybean meal (SBM), sunflower seed meal (SSM), and cottonseed meal (CSM)), either untreated or formaldehyde-treated on the growth performance and carcass traits of Awassi lambs. Lambs were randomly assigned to one of the six diets (4 lambs/treatment diet) and were individually fed for a period of 107 days. Experimental diets were isonitrogenous and isocaloric. Final live weight and average daily gain (ADG) were affected by both source of protein and formaldehyde treatment (undegradable protein). Lambs fed untreated diets had better (p<0.01) daily gain compared to those fed formaldehyde-treated diets. Similarly total feed intake per animal was significantly (p<0.05) affected by protein source and formaldehyde treatment. Formaldehyde treatment caused a significant decrease (p<0.01) in feed intake compared to lambs fed untreated diets. Feed requirement per unit of gain was not affected by formaldehyde treatment during all periods of the experiment except for the second period (the second 28 day period), whereby untreated SBM, SSM and CSM had better feed conversion ratio (FCR) than the treated groups. Source of protein had a moderate effect (p<0.10) on FCR, but had a significant effect (p<0.05) on hot and cold carcass weight, digestive tract empty weight and liver weight, with lambs fed SBM having higher values than lambs fed SSM and CSM diets. Supplementation with undegradable protein had a significant effect (p<0.05) on dressing-out percentage (p<0.05), final live weight, and hot and cold carcass weight (p<0.01). The lower values pertain to lambs fed treated diets compared to lambs fed untreated diets. In general, there were no significant differences among all carcass linear dimensions, carcass cut weights and dissected loin tissue weights for both treatments (protein source and formaldehyde treatment). Supplementation with undegradable protein but not the source of protein resulted in significantly higher dissected leg total bone weight (p<0.05), tibia and femur weight (p<0.05), and femur length (p<0.01) at the same carcass weight. Results suggest that the treatment of SBM, SSM and CSM with formaldehyde did not improve efficiency of feed utilization, lamb performance or carcass traits and that the SBM diet resulted in an increase in lamb performance compared to other experimental diets.

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The Impact of Some Widely Probiotic (Iraqi Probiotic) on Health and Performance

Hamasalim¹

2015

JBM

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Probiotics (Greek: for life) are commonly defined as mono-or mixed cultures of live microbes. When applied to animals or humans, they exert a beneficial effect on health of the host. These beneficial effects include disease treatment and prevention as well as improvement of nutrients' digestion and absorption. Probiotic microorganisms are generally, albeit not exclusively, lactic acid bacteria (LAB) including Lactobacillus acidophilus, L. bulgaricus, L. casei, L. plantarum, and L. rhamnosus. However, use of other bacterial species such as Bacillus and Bifidobacterium spp. as probiotic strains has also been described in several commercial products. This article intends to present an up-to-date version regarding Iraqi probiotics currently used and health benefit obtained from their consumption. However, the employing of microbes to promote a good health is very common, while the current review paper provides a comprehensive view of some common probiotics in Iraq as all strains are very important to be familiar with them before any applying process. Ideally, microbial probiotics should have a beneficial effect and not cause any harm to the host. Therefore, all strains must have been studied comprehensively prior to use in humans or animals and thus are given GRAS (Generally Regarded as Safe) status.

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Effects of dietary supplement of rumen undegradable protein upon carcass composition of fat-tail Awassi sheep

Cited by 3 publications

References 13 publications

Replacing cottonseed meal and sorghum with dried distillers’ grains with solubles enhances the growth performance, carcass traits, and meat quality of feedlot lambs

Replacing cottonseed meal and sorghum with dried distillers’ grains with solubles enhances the growth performance, carcass traits, and meat quality of feedlot lambs

The Effect of Protein Source and Formaldehyde Treatment on Growth and Carcass Composition of Awassi Lambs

The Impact of Some Widely Probiotic (Iraqi Probiotic) on Health and Performance

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