scholarly journals Effects of dietary vitamin E supplementation on fattening performance, carcass characteristics and meat quality traits of Karya male lambs

2009 ◽  
Vol 52 (6) ◽  
pp. 618-626 ◽  
Author(s):  
O. Atay ◽  
Ö. Gökdal ◽  
V. Eren ◽  
Ş. Çetiner ◽  
H. Yikilmaz
Keyword(s):  
Vitamin E ◽  
Meat Quality ◽  
Conversion Efficiency ◽  
Carcass Characteristics ◽  
Dietary Vitamin ◽  
Quality Traits ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Meat Quality Traits ◽  
Vitamin E Supplementation

Abstract. The objective of this study was to evaluate the effects of dietary vitamin E supplementation on performance, slaughter-carcass characteristics and meat quality traits of Karya male lambs. Lambs weaned approximately at 10 weeks of age were divided into two groups. After the 10 days adaptation period, control group (CG, n7) and vitamin E group (VEG, n=6) lambs were fed on with concentrates ad libitum and 100 g hay/lamb/day for 70 days. In addition the VEG received a supplement on concentrates of 45 mg/lamb/day vitamin E during the fattening period. The meat quality traits were determined using m. longissimus dorsi (LD) obtained from split between 12th and 13th ribs on both groups lambs. Daily gain and feed conversion efficiency were 259 g and 5.3 for CG and 266 g and 4.7 for VEG, respectively. There was no vitamin E supplementation effect on the average daily weight gain and feed conversion efficiency (P>0.05). However, VEG had 10.5 % higher feed conversion efficiency than control lambs. Slaughter and carcass characteristics of lambs were not significantly affected from vitamin E supplementation (P>0.05). There were no effects of vitamin E supplementation on lightness (L*), redness (a*), yellowness (b*) and pH during 12-day aerobic storage. Thiobarbituric acid reactive substances (TBARS) values at day 2 were not affected by the vitamin E treatment. However, TBARS values on day 4 and 8 (P<0.05), and day 12 (P<0.01) were higher in the CG than in the VEG. Although not significant, 10 % higher feed conversion efficiency in VEG animals might suggest that vitamin E supplementation is useful to improve fattening performance.

Effects of vitamin E supplementation on performance and meat quality traits of Morkaraman male lambs

Meat Science ◽  
2003 ◽  
Vol 63 (1) ◽  
pp. 51-55 ◽  
Author(s):  
Muhlis Macit ◽  
Vecihi Aksakal ◽  
Ebru Emsen ◽  
M.Irfan Aksu ◽  
Mevlut Karaoglu ◽  
...  
Keyword(s):  
Vitamin E ◽  
Meat Quality ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Vitamin E Supplementation

Effect of different feeding systems on the fattening performance, slaughter-carcass characteristics and meat quality in lambs

2016 ◽  
Author(s):  
Serhat Karaca ◽  
Ayhan Yilmaz ◽  
Askin Kor ◽  
Mehmet Bingöl ◽  
Siddik Keskin
Keyword(s):  
Meat Quality ◽  
Carcass Characteristics ◽  
Quality Traits ◽  
Feed Conversion ◽  
Fattening Performance ◽  
Meat Quality Traits ◽  
Dressing Percentage ◽  
Water Holding ◽  
Feeding Systems

The aim of the study was to find out the effect of different feeding systems on the fattening performance, slaughter and carcass characteristics, and meat quality of Norduz male lambs. Lambs were randomly divided into 3 groups of 15 each, as follows: 2M (2 meals/day), 4M (4 meals/day) and SF (self-feeder). Then, lambs were fed according to these regimes for 70 days to determine the feed conversion ratio, dressing percentage, carcass fatness and meat quality traits such as pH, color and water holding capacity. Although live weights and daily weight gains were found to be similar among the groups, significant differences were found in the daily feed intake (2M: 1.53 kg; 4M: 1.70 kg; SF: 1.89 kg) among groups (p<0.05). No significant differences were observed in slaughter and carcass characteristics except dressing percentage (2M: 49.69%; 4M: 50.59%; SF: 48.46%). Meat quality traits were also similar among groups, except for pH24h (2M: 5.77; 4M: 5.95; SF: 6.10) (p<0.01).

Effect of hypothyroidism on growth performance, carcass composition and meat quality of fat-tailed Lori-Bakhtiari lambs

2015 ◽  
Vol 55 (10) ◽  
pp. 1324 ◽  
Author(s):  
Yousef Baghcheghi ◽  
Ahmad Zare Shahneh ◽  
Mahdi Ganjkhanlou ◽  
Mahdi Khodaei Motlagh ◽  
Ali Reza Yousefi
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Conversion Efficiency ◽  
Shear Force ◽  
Carcass Composition ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Mild Hypothyroidism ◽  
Plasma Triiodothyronine

The aim of the present study was to investigate the effects of induction hypothyroidism by propylthiouracil (PTU) on the growth performance and meat quality of fat-tailed Lori-Bakhtiari lambs. Eighteen Lori-Bakhtiari male lambs were randomly assigned to one of three groups (n = 6) and received daily treatments (gavage) consisting of 0 (Control: C), 10 (Low: L) or 20 (High: H) mg PTU/kg bodyweight/day for 60 days. PTU decreased plasma triiodothyronine and thyroxine concentration in both L and H (P < 0.0001). Lambs treated with PTU (L and H) had lower feed intake (P < 0.004), feed conversion efficiency (P < 0.003), and greater intramuscular fat than C lambs (P < 0.035). Meat from the L and H lambs had lower cooking loss and shear force, and also higher L* (lightness) than C lambs (P < 0.004, P < 0.015 and P < 0.025, respectively). The meat of H and L lambs was more tender than C lambs (P < 0.032). However, the meat of H lambs required fewer chews before swallowing than C lambs (P < 0.041). Generally, induction of mild hypothyroidism appeared to improve feed conversion efficiency and meat quality of lambs.

Effects of concentrates rich in by-products on growth performance, carcass characteristics and meat quality traits of light lambs

2019 ◽  
Vol 59 (3) ◽  
pp. 593 ◽  
Author(s):  
C. Avilés Ramírez ◽  
F. Peña Blanco ◽  
A. Horcada Ibáñez ◽  
N. Núñez Sánchez ◽  
F. Requena Domenech ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Soybean Meal ◽  
Carcass Characteristics ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Alternative Ingredients ◽  
Camelina Meal ◽  
Feedlot Lambs ◽  
By Products

The effects of feeding concentrates with alternative ingredients to cereal and soybean meal on growth performance, carcass characteristics and meat quality traits of feedlot lambs were studied. A total of 105 non-castrated male lambs were randomly assigned to one of three treatments (5 replicates per treatment): Control (CON, similar to commercial concentrates), Camelina (CAM, where camelina meal replaced 50% of the crude protein from the soybean meal in the CON concentrate), and Fibrous (FIB, concentrate without cereals and soybean meal, with camelina meal in addition to several by-products, and 20% less energy). The CAM treatment performed as well as the CON one. The FIB treatment increased feed conversion rate and tended to improve the redness and the oxidative stability. The CAM and FIB were economically more favourable. We found that a concentrate for feedlot lambs based on alternative ingredients, including several by-products, could be a feasible alternative to typical cereal-soybean meal-based concentrates.

scholarly journals From Landfills to the Dinner Table: Red Grape Pomace Waste as a Nutraceutical for Broiler Chickens

2019 ◽  
Vol 11 (7) ◽  
pp. 1931 ◽  
Author(s):  
Cebisa Kumanda ◽  
Victor Mlambo ◽  
Caven Mnisi
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Grape Pomace ◽  
Waste Reduction ◽  
Quality Traits ◽  
Feed Conversion ◽  
Breast Meat ◽  
Red Grape

The disposal of red grape pomace (GP) in landfills and by incineration has negative impacts on the environment. It is, therefore, imperative that alternative and sustainable ways of managing this waste product are identified. Using GP as a source of nutrients and beneficial bioactive compounds in avian diets is a potential waste-reduction and valorization strategy that promotes sustainable agriculture. However, there is limited information on the valorization of GP for this purpose. This study, therefore, investigated the effect of dietary inclusion of GP on growth performance, blood parameters, carcass characteristics, and breast meat quality traits of broilers. Four hundred, two-week old Cobb 500 broilers (279.2 ± 18.87 g) were allocated to 40 pens. Five isonitrogenous and isoenergetic diets were formulated by including GP in commercial broiler diets at 0 (GP0), 2.5 (GP25), 4.5 (GP45); 5.5% (GP55); and 7.5% (GP75). Feed intake, weight gain, feed utilization efficiency, hematology, serum biochemistry, carcass characteristics, and breast meat quality traits were measured. Chickens on GP75 had the least feed intake (p < 0.05) but there were no dietary effects on weight gain. Birds on GP0 had the highest (p < 0.05) feed conversion ratio (1.79) while those fed GP75 had the lowest (p < 0.05) ratio (1.45). Breast meat from broilers offered GP75 had the highest (p < 0.05) redness value (0.75) while the GP0 diet promoted the least (p < 0.05) redness value (0.49). Broilers fed GP55 and GP75 diets had higher (p < 0.05) feed conversion efficiency compared to GP0 birds. Inclusion of GP in broiler diets has the potential to reduce feed costs, thus making this valorization strategy a sustainable alternative to current pomace disposal methods. Adoption of this waste-reduction and valorization strategy promotes sustainable agriculture by contributing to food security and environmental stewardship.

Sign in / Sign up

Export Citation Format

Share Document