scholarly journals Influence of Different Levels of Ground Oak (Quercus Aegilops) Acorns on Growth Performance and Some Carcass Characteristics of Awassi Lambs

2020 ◽  
Vol 8 (2) ◽  
pp. 58-61
Author(s):  
Hoger M. Hidayet ◽  
Kamal N. Mustafa

This study was aimed to investigate the effect of feeding different levels of oak acorns on growth and some carcass characteristics of Awassi lambs. Twenty lambs were blocked into four groups (5 lambs/ group) according to live body weight and fed on one of the experimental diets (0, 5, 10 and 15% oak acorns). The results showed no effect of dietary treatments on live body weight throughout the period of study, also there were no effects of treatments on carcass traits except for rib-eye muscle area which was largest in the group fed on 5% acorns. It could be concluded that feeding Awassi lambs on ground oak acorns has no adverse effects on growth performance and health condition.

2013 ◽  
Vol 58 (No. 10) ◽  
pp. 470-478 ◽  
Author(s):  
M. Foltyn ◽  
V. Rada ◽  
M. Lichovníková ◽  
I. Šafařík ◽  
A. Lohniský ◽  
...  

The influence of different levels of extruded full-fat soybean (EFFSB) in the diet on growth performance, apparent ileal amino acids digestibility (AIAAD), intestinal morphology, and trypsin activity in digesta of broilers was determined. In the first experiment, two-hundred sixty ROSS 308 male chickens were used to investigate the effect of EFFSB on growth performance, intestinal morphology, and trypsin activity in the digesta and AIAAD. Five dietary treatments were used, containing 0, 40, 80, 120, and 160 g/kg of EFFSB. The experiment lasted from day 10 till day 38 of age. The inclusion of EFFSB at the level of 160 g/kg in the diet significantly (P < 0.05) decreased final body weight (2443 g in 0 group vs. 2093 in 160 group) and worsened feed efficiency. AIAAD was lower when diet contained more than 40 g/kg EFFSB. But at the level of 160 g/kg AIAAD increased in several amino acids (threonine, isoleucine, leucine, histidine). Trypsin activity increased with increasing EFFSB in the diets. There were no significant (P > 0.05) differences in AIAAD between groups 80, 120, and 160. Villus height (groups 0: 966.2; 4: 852.1; 8: 792.6; 12: 836.3; 16: 926.7 µm) and crypt depth (groups 0: 160.1; 4: 134.8; 8: 122.9; 12: 129.5; 16: 134.6 µm) of ileum decreased with inclusion of EFFSB in the diet, but villi/crypt ratio increased. In the second experiment, male chickens ROSS 308 were divided into 4 groups with 2 replicates per 100 chicks each. The groups were fed 0, 40, 80, and 120 g/kg of EFFSB. The experiment lasted from day 10 till day 38 of age. Final body weight (2594 g in 0 group vs. 2624 g in 120 group) was not significantly (P > 0.05) affected by the diet. The study showed that EFFSB at the level of 120 g/kg in grower broiler diet had no adverse effect on performance.  


2019 ◽  
Vol 15 (01) ◽  
pp. 67-70
Author(s):  
R B Makwana ◽  
S R Bhagwat ◽  
S S Parikh ◽  
B D Savaliya ◽  
C N Jadav

The present study was carried out for six weeks to investigate the effects of adding graded levels (0, 0.1 and 0.5%) of garlic (Allium sativum) powder to the basal experimental diet on the growth performance and carcass characteristics of broiler chicks. One hundred and eighty (n = 180) day old unsexed white commercial broiler chicks (Cobb-400) were randomly distributed into three dietary treatments of 60 birds/treatment and each treatment contained 4 replicates (15 birds/replicate). The dietary treatments were controlled basal diet (T1), and a diet supplemented with garlic powder at 0.1% (T2) and 0.5% (T3). Daily feed intake, weekly body weight, and residue leftover were recorded to calculate the feed conversion ratio (FCR). At the end of the experiment, six birds from each group were sacrificed to determine the carcass characteristics. Results revealed that dietary supplementation of 0.1% garlic powder (T2) significantly (p less than 0.01) improved body weight, body weight gain, feed intake and FCR as compared to birds supplemented with 0.5% garlic powder (T3) and control diet (T1). Dietary supplementation of 0.1% garlic (T2) resulted in significant (p less than 0.05) improvement in dressed yield as comparedto T3 and T1. On the other hand, comparable (p greator than 0.05) effect was observed on shrinkage loss, blood loss, feather loss, eviscerated yieldand relative weight of giblet. Thus, dietary supplementation of 0.1% garlic powder had beneficial effects on growth performance and dressed yield of broiler chicks.


2021 ◽  
pp. 1487-1491
Author(s):  
M. Ata ◽  
Belal S. Obeidat

Background and Aim: Grains, such as barley (BAR) and corn (CORN), are major energy sources for small ruminants. This study aimed to assess the impact of feeding either BAR or CORN-based diets on growth performance and carcass characteristics. Materials and Methods: Awassi male lambs, average body weight of 20.4±0.49 kg, were chosen randomly. Lambs were acclimated for 10 days and assigned to one of two diets (1) BAR and (2) CORN. Feeding continued for 70 days with 60 days of data collection. Daily intake was recorded. Measurements of body weight were taken starting from day 1 then once per week throughout the study period. On day 40, six lambs were randomly chosen from each group and placed in metabolism cages to assess digestibility and N balance. Lambs were slaughtered on the last day of the study to evaluate carcass characteristics and meat quality. Results: Neutral and acid detergent fiber and ether extract intake were greater (p≤0.05) for lambs fed the BAR diets. Nitrogen loss in feces tended to be greater (p=0.09) for the CORN diet. Eye muscle depth (mm) tended to be greater (p=0.07) for the BAR diet. Nutrient digestibility, daily weight gain, carcass characteristics, and meat quality were not different (p≥0.1) between diets. Conclusion: The results herein demonstrate that feeding BAR grain improved nutrient intake efficiency and consistency and did not affect weight gain and carcass traits. BAR-based diets might be a useful alternative to CORN for feeding growing lambs.


2021 ◽  
Vol 14 (1) ◽  
pp. 237-241
Author(s):  
Belal S. Obeidat

Background and Aim: Black cumin meal (BCM) is the principal by-product that can be obtained from black cumin seed (Nigella sativa L) after the oil is removed from the fruit and represents 70-75% of the fruit weight. The aim of this experiment was to assess the influence of feeding BCM on the carcass characteristics and meat quality of growing lambs. Materials and Methods: Twenty-four Awassi lambs were randomly divided into two dietary treatments. The lambs were penned individually in single pens and provided access to ad libitum feed and water. The dietary treatments were no BCM (control [CON]; n=12) or 150 g BCM/kg (BCM 150; n=12) of dietary dry matter. Results: Lambs fed BCM had greater (p≤0.01) fasting live BW, and hot and cold carcass weights. Leg fat and eye muscle depth were lower (p≤0.05) in CON versus BCM lambs. Meat whiteness (L*), redness (a*), and yellowness did not differ between lambs fed the two diets. Conclusion: The inclusion of BCM improves lamb carcass characteristics, but does not affect lamb meat quality.


2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 185-186
Author(s):  
Hadley Williams ◽  
Leandro Del Tuffo ◽  
Jason C Woodworth ◽  
Joel M DeRouchey ◽  
Steve S Dritz ◽  
...  

Abstract This study evaluated the effect of an algae-clay-complex-based feed additive (ACC, Olmix Group, Brehan, France) and diet formulation regimen on growth performance and carcass characteristics of finishing pigs. A total of 1,188 pigs (PIC 337×1050, initially 49.5 kg) were used in a 90-day study. There were 27 pigs per pen and 11 replications per treatment. Dietary treatments were arranged in a 2×2 factorial with main effects of ACC (none or 0.10% until 100 kg body weight and 0.05% thereafter) and dietary formulation regimen (High vs Low). High diets were formulated to maximize growth with added fat and no dried distillers grains with solubles (DDGS). Low diets were formulated to contain approximately 150 kcal/kg less net energy (NE), 30% DDGS, no added fat, and were formulated 0.10% below the standardized ileal digestible (SID) lys requirement based on the SID Lys:NE ratio as estimated in the High diets. Data were analyzed using the GLIMMIX procedure of SAS. There were no ACC × formulation interactions (P >0.220) for growth or carcass characteristics. Overall, ADG was greater (P=0.027) for pigs fed diets with ACC compared with those fed diets without ACC with no change in ADFI or G:F (P >0.180). This was a result of late finishing (d 56 to 90) ADG and G:F increase (P< 0.019) for pigs fed diets with ACC compared with those fed no ACC. Also, pigs fed High diets had improved (P< 0.047) ADG, ADFI, G:F and final body weight compared to pigs fed Low diets. For carcass characteristics, pigs fed High diets tended to have greater (P=0.067) loin depth and had greater (P< 0.001) carcass weight than pigs fed low diets with no evidence for differences between the control and pigs fed ACC (P >0.05). The addition of ACC resulted in improved ADG and G:F in late finishing, but did not affect carcass characteristics.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 165-166
Author(s):  
Sara J Trojan ◽  
Jerilyn Hergenreder ◽  
Landon Canterbury ◽  
Tyler Leonhard ◽  
John M Long

Abstract British crossbred steers [n = 3074; initial body weight (BW) = 358 ± 37 kg] were used to evaluate the effects of chromium propionate supplementation to yearling steers in a commercial feedyard on growth performance, carcass characteristics and health. Steers were blocked by initial BW; pens were assigned randomly to one of two dietary treatments within block. Treatments, replicated in 15 pens/treatment with 75 to 135 head per pen, included: 1) control, 0 mg supplemental Cr/kg dietary dry matter (DM) (CTL); 2) 0.50 mg supplemental Cr/kg diet DM (chromium propionate; KemTRACE® Chromium 0.04%, Kemin Industries, Des Moines, IA) (CR). Final BW (638 vs. 641 kg.), average daily gain, (1.81 vs. 1.82 kg), DM intake (11.02 vs. 11.02 kg) and gain efficiency (0.164 vs 0.165) did not differ between CTL and CR, respectively (P ≥ 0.75). No differences among treatments for hot carcass weight (407 vs. 408 kg., CTL and CR, respectively), dressing percentage, longissimus muscle area, or yield grade were observed (P ≥ 0.15). Twelfth-rib fat thickness tended (P = 0.10) to be greater for CR vs. CTL (1.55 vs 1.29 cm, respectively). A trend (P = 0.10) for marbling score to be higher for CR vs. CTL was detected (452 vs. 440, respectively). Distribution of quality grade was similar between CR and CTL; 1.52% of carcasses graded prime (P =0.68), and 87.2% of carcasses graded choice (P = 0.68). Respiratory morbidity was low (1.93%) and not different among treatments (P = 0.20); likewise, there was no difference in respiratory treatment rates between treatments (P ≥ 0.18). Supplementing Cr to high-performing yearling steers did not alter growth performance, carcass characteristics or health outcomes.


Author(s):  
P H V Carvalho ◽  
B C Latack ◽  
R Flores ◽  
M F Montano ◽  
R A Zinn

Abstract One hundred sixty-eight Holstein steer calves (133.4 ±7.9 kg) were used to evaluate the influence of virginiamycin (VM) supplementation on cattle growth performance and liver abscess incidence, and the effect of feeding 100% vs 87% of metabolizable protein (MP) requirements during the initial 112 d on growth performance, efficiency of energy utilization, and carcass characteristics. Steers were balanced by weight and assigned to 28 pens (6 steers/pen). During the initial 112-d feeding period, dietary treatments consisted of two levels of metabolizable protein (100 vs 87% of expected requirements during the initial 112 d feeding period; NASEM, 2000) supplemented with or without 22.5 mg/kg virginiamycin (Phibro Animal Health, Teaneck, NJ 07666) in a 2×2 factorial arrangement. There were no VM × MP supplementation interactions (P ≥ 0.14) on any of the parameters measured in both experiments. Calf-fed Holstein steers supplemented VM increased (P ≤ 0.03) overall ADG, G:F, observed/expected NE values for maintenance and gain, and final body weight (BW). Cattle fed VM also increased (P ≤ 0.04) carcass weight, dressing percent, and longissimus muscle area. However, there was no effect (P ≥ 0.22) of VM supplementation on any other carcass characteristics. Calf-fed Holstein steers fed 100% MP requirements during the initial 112 d feeding period had greater (P ≤ 0.02) ADG, G:F, observed/expected NE values for maintenance and gain, and live BW compared to steers fed 87% of the expected metabolizable protein requirements. However, there was no effect (P ≥ 0.17) of MP supply during the initial 112-d period on overall (342 d) growth performance measurements. The incidence of liver abscesses was low (averaging 7.7%) and not affected by dietary treatments. We conclude that independently of MP supplies, supplemental VM enhances overall growth performance and efficiency of energy utilization of calf-fed Holstein steers.


Animals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 703
Author(s):  
Jae-Cheol Jang ◽  
Kwang Kim ◽  
Young Jang ◽  
Yoo Kim

The experiment aimed to investigate the effects of dietary β-mannanase supplementation on growth performance, apparent total tract digestibility (ATTD) of nutrients, intestinal integrity, and the immunological and oxidative stress parameters in weaning pigs. A total of 64 newly weaning pigs (initial body weight: 6.96 ± 0.70 kg) were allotted to two dietary treatments in eight replicates per treatment with four pigs per pen based on body weight and sex. Dietary treatments were 1.) CON (control: corn-soybean meal based basal diet) and 2.) β-mannanase (basal diet +0.06% β-mannanase). The β-mannanase supplementation did not affect growth performance, concentrations of acute phase protein, superoxide dismutase and glutathione peroxidase. However, the pigs fed the β-mannanase-supplemented diet had greater ATTD of ether extract, jejunum villus height, and villus height-to-crypt depth ratio, and lower crypt depth compared with those fed the CON diet (p < 0.05). The pigs fed the β-mannanase-supplemented diet tended to have the lower count of E. coli in cecum than those fed the CON diet (p = 0.08). In conclusion, dietary β-mannanase supplementation did not affect growth performance, immune response and oxidative stress of weaning pigs, whereas it increased fat digestibility and had positive effects on intestinal integrity and cecum microflora by reducing the count of E.coli.


Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 375
Author(s):  
Sheena Kim ◽  
Jin Ho Cho ◽  
Younghoon Kim ◽  
Hyeun Bum Kim ◽  
Minho Song

The present study was conducted to evaluate the effects of replacing corn with brown rice on growth performance, nutrient digestibility, carcass characteristics, and gut microbiota of growing and finishing pigs. A total of 100 growing pigs (23.80 ± 2.96 kg BW; 10 weeks of age) were randomly allotted to 4 dietary treatments (5 pigs/pen; 5 replicates/treatment) in a randomized complete block design (block = BW) as follows: corn-soybean meal basal diet (CON) and replacing corn with 50% (GBR50), 75% (GBR75), and 100% (GBR100) of ground brown rice. Each trial phase was for 6 weeks. During the growing period, there were no differences on growth performance and nutrient digestibility among dietary treatments. Similarly, no differences were found on growth performance, nutrient digestibility, and carcass characteristics of pigs during the finishing period among dietary treatments. As a result of the beta diversity analysis, microbial populations were not clustered between CON and GBR100 during the growing phase, but clustered into two distinct groups of CON and GBR100 during the finishing phase. In conclusion, brown rice can be added to the diets of growing-finishing pigs by replacing corn up to 100% without negatively affecting growth performance of the pigs; additionally, this may have an effect on changes in pig intestinal microbiota if continued for a long time.


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