Carcass characteristics and meat quality of male goat kids supplemented by alternative feed resources: Olive cake and cactus cladodes.

2020 ◽  
Author(s):  
Samira El Otmani ◽  
Youssef Chebli ◽  
Mouad Chentouf ◽  
Jean-Luc Hornick ◽  
Jean-François Cabaraux

Abstract Background The current study was carried out to evaluate the effect of olive cake and cactus cladodes incorporation on carcass characteristics and meat quality of goat kids.Methods Forty-eight male goat kids were divided into four groups. The control group received a conventional supplementation and the test groups were supplemented with a concentrate containing, on dry matter basis, 35% of olive cake (OC), 30% of cactus cladodes (CC), or 15% OC and 15% CC (OC+CC) respectively. After 3 months, all animals were slaughtered and the carcass quality was characterized. Samples of Longissimus dorsi and Semimembranosus were collected to determine meat quality.Results The diets did not affect final body weight and carcass characteristics, except for muscle index that decreases with 35% OC, and redness and yellowness at tail outline and belly (P < 0.05). The OC incorporation increased yellowness at tail and decreased redness at belly (P < 0.05), while the CC inclusion decreased redness at tail outline (P < 0.01), and redness (P < 0.05) and yellowness at belly (P < 0.01). Meat ultimate pH, color, moisture and tenderness were not affected by diets. In Longissimus dorsi, higher proteins (P < 0.001) and lower fat and ash (P < 0.05) content were observed with CC, and lower proteins content with OC and OC+CC (P < 0.001). In Semimembranosus, a low initial pH (P < 0.05) was observed with OC and high protein content (P < 0.001) with CC and OC+CC. Generally, groups, ratios, and indexes of fatty acids (FA) were similar between groups, except FA profile that was affected by diet, especially for Semimembranosus. In Longissimus dorsi, the OC and CC introduction decreased C16:1, and C20: 3n3 increased with CC and OC+CC (P < 0.05). While in Semimembranosus, OC increased C6, C8, C18:3n3, C20:2 and C22:2, whereas CC incorporation reduced C8, C10, and C15:1, and OC+CC reduced C10 (P < 0.05).Conclusions This study was shown that OC and CC could be introduced in goat kids’ diet, without a negative effect on carcass characteristics and meat quality.

2017 ◽  
Vol 156 ◽  
pp. 33-41 ◽  
Author(s):  
Β. Kotsampasi ◽  
V.A. Bampidis ◽  
A. Tsiaousi ◽  
C. Christodoulou ◽  
K. Petrotos ◽  
...  

2020 ◽  
Author(s):  
Sanjun Jin ◽  
Hao Yang ◽  
Fangju Liu ◽  
Xinping Diao ◽  
Qian Pang ◽  
...  

Abstract Background: With increasing of duck meat among consumers, the demand for growth performance and the meat quality health of ducks in increasing. Dietary curcumin altered the growth performance and meat quality. However, study on the effect of dietary curcumin on the growth performance, serum antioxidation and meat quality of ducks. This study invested effects of dietary curcumin given to ducks on the growth performance, antioxidation capacity in plasma, meat quality, lipid oxidation and the concentration of volatile compounds in duck breast muscle. A total of 600 healthy ducks with similar body weight were randomly allotted into 4 groups with 10 replicates per group and 15 ducks per replicate. Ducks were fed experimental diets which the curcumin supplemental levels were 0, 300, 400 and 500 mg curcumin/kg basic fed, respectively. The experiment lasted for 10 weeks. Results: Results showed that dietary supplementation of curcumin at levels 300, 400 and 500 mg/kg dietary (P < 0.05) improved the average final body weight. The ducks fed the basal diet without curcumin supplementation had the lowest FI (P > 0.05) and highest FCR (P > 0.05) among all ducks. Feeding ducks on diets supplemented with curcumin at each level significantly increased (P < 0.05) plasma activity of T-SOD and GSH-Px, and significantly reduced plasma MDA concentration compared to the control group. The dietary curcumin significantly increased the growth performance and the antioxidation capacity in plasma of ducks. Dietary curcumin improved the meat quality of ducks by significantly increasing pH45, pH24 (P < 0.05) and color of duck meat (P < 0.05), and significantly decreasing cooking loss (P < 0.05), shear force (P < 0.05), and the lipid oxidation of duck meat. 56 volatile compounds were identified and quantified. Interestingly, cantharidin among volatile compounds was firstly found in duck muscle, and only existed in the group of 500 mg curcumin/kg diet. Conclusions: In conclusion, the supplementation of duck diets with curcumin at 300, 400, and 500 mg/kg diet improved growth performance, antioxidant status and meat quality of ducks. The cantharidin was firstly found in duck breast muscle when the dietary curcumin inclusion of 500 mg/kg.


Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3120
Author(s):  
Pu Wu ◽  
Xiaoyue Fu ◽  
Hucheng Wang ◽  
Mingjie Hou ◽  
Zhanhuan Shang

Diet and breed directly affect ruminant carcass traits and meat quality. Therefore, this research aimed to evaluate the effect of silage diet and breed on growth performance, carcass traits, and meat quality of lambs. A total of 28, 3–4 months old female lambs consisting of 14 Dorper lambs (DP) and 14 Thin-tailed Han lambs (TH) were allocated in a 2 × 2 factorial design and offered two experimental diets (sweet sorghum silage: SS; whole-crop corn silage: WS) for 90 days. Lambs fed the WS diet had a higher growth performance (p < 0.01), intramuscular fat content (p < 0.05), and bright meat color (p < 0.01) than lambs fed the SS diet. The lambs fed the SS diet showed a higher polyunsaturated fatty acid (PUFA) content than the lambs fed the WS diet (p < 0.01); there was no significant difference in growth performance and carcass characteristics between DP and TH lambs (p > 0.05). The meat of the DP lambs showed lower values of initial pH, shear force, lightness (L*), redness (a*), and saturated fatty acid (SFA) content (p < 0.05). The lamb breed influenced fewer variables of growth performance and carcass characteristics compared to the diet. The lambs fed the SS diet had higher nutritional quality meat than lambs fed the WS diet.


2016 ◽  
Vol 38 (2) ◽  
pp. 183
Author(s):  
Karine Regina Alves ◽  
Leandro Das Dores Ferreira da Silva ◽  
Edson Luís Azambuja Ribeiro ◽  
Geisi Loures Guerra ◽  
Fernando Henrique Pereira de Paiva ◽  
...  

The aim was to evaluate the feeding behavior, carcass characteristics and meat quality of Nelore heifers fed sunflower pie replacing cottonseed meal. They were used 30 heifers with average initial weight of 274 kg ± 28 kg and average age of 24 months, confined for 76 days. The design was completely randomized with five treatments (0, 150, 300, 450 and 600 g kg-1 DM) and six replicates per treatment. By completing 24 hours after slaughter, it evaluated muscle conformation and degree of finish made the longissimus dorsi at the 13th rib. A representative sample between the 10th and 12th ribs was collected for evaluation of the physical components of carcasses. As well as the other variables, the hot carcass weight, dressing percentage, carcass length and rib eye area were not influenced by different pie levels in feed. The mean percentage of muscle, bone and fat from the carcass were 53.45; 16.14 and 29.46%, respectively, similar among treatments. Therefore, the use of up to 600 g kg-1 of sunflower pie replacing cottonseed meal as the main protein source, did not affect the carcass characteristics and meat quality of Nelore heifers. 


2016 ◽  
Vol 14 (2) ◽  
pp. e0603 ◽  
Author(s):  
Carmen De Jesús ◽  
Rubén Domínguez ◽  
Jesús Cantalapiedra ◽  
Antonio Iglesias ◽  
José M. Lorenzo

The effect of including chestnuts in the formulation of the feed on carcass characteristics and meat quality from 24 castrated males Celta pigs was studied. The inclusion of 15% of chestnut (CH15) improved (p<0.01) the carcass (118 vs. about 104 kg) and live weights (149 vs. 133-139 kg). Killing out percentage was also better for chestnuts groups than for control group. With regards the morphometric parameters, there were no statistically significant (p>0.05) differences except for the carcass length and ham length, for which the CH15 group proved to be the group with the longest sizes. The diet did not affect the physicochemical properties (colour parameters, water holding capacity and shear force) of longissimus dorsi muscle. The composition of some fatty acids of the longissimus dorsi muscle was affected by diet. The total saturated (35-38%) and total polyunsaturated fatty acids (8-10%) did not present differences. However, the increase of chestnut in the diet increased (p<0.05) the monounsaturated fatty acids in intramuscular fat (57% in CH25 vs. 53% in control and CH15). Within monounsaturated fatty acids, the C18:1n9 was the most influenced by the diet. The expression of the enzyme that synthesizes C18:1n9 depend on the composition of the diet. Therefore, the lower content of protein and the higher amounts of C18:1n9 and C18:2n6 in the chestnut could be explaining the greater content of C18:1n9 in muscle of chestnut-fed animals. The main conclusion is that including chestnuts in the diet would allow reduce production costs with no effect or even improving carcass measurements and meat quality.


2003 ◽  
Vol 77 (1) ◽  
pp. 57-65 ◽  
Author(s):  
L. E. R. Dawson ◽  
A. F. Carson ◽  
L. O. W. McClinton ◽  
D. J. Kilpatrick ◽  
B. W. Moss

AbstractAn experiment was undertaken to compare the carcass characteristics and meat quality of lambs from crossbred ewes produced by crossing Texel sires with Rouge de l’Ouest dams and Rouge sires with Texel dams, relative to lambs from purebred Texel and Rouge ewes. The ewes were crossed with Texel or Rouge sires and the relative performance of the sires assessed in terms of lamb carcass quality. Ewe and ram genotype had a significant effect on conformation classification. Lambs from Texel ewes had a greater conformation classification (4·0) than lambs from Rouge ewes (3·4, s.e. 0·09) (P<0·001) and Texel-sired lambs had a greater conformation classification (4·0) than Rouge-sired lambs (3·6, s.e. 0·06) (P<0·001). Fat depth was significantly influenced by ewe genotype with lambs from Texel × Rouge ewes having greater fat depths compared with lambs from Texel ewes (longissimus dorsi 2·3 and 1·9 (s.e.0·12) mm respectively) (P<0·05). Chemical composition of the carcass and meat quality measurements were unaffected by ewe or ram genotype. Significant heterosis effects on lamb live-weight gain (21 g/day; 15%) (P<0·01) from birth to slaughter, age at slaughter (–37 days; –12%) (P<0·01), weight of perinephric and retroperitoneal fat (76 g; 38%) (P<0·01) and fat depth over the longissimus dorsi (0·3 mm; 16%) and gluteus medius (0·5 mm; 17%;P<0·05) were obtained. The results from this study demonstrate that significant heterosis effects, particularly in terms of lamb growth rate, can be achieved by crossing Rouge and Texel breeds. In addition lambs from hybrid ewes have similar conformation characteristics to the Texel breed which has been intensively selected for carcass characteristics.


2019 ◽  
Vol 157 (2) ◽  
pp. 169-175
Author(s):  
H. Liang ◽  
X. H. Zhao ◽  
K. Pan ◽  
L. J. Xu ◽  
Z. H. Yi ◽  
...  

AbstractAn experiment was conducted to determine the effects of supplementing different amounts of daidzein in a diet on the growth performance, blood biochemical parameters and meat quality of finishing beef cattle. Thirty finishing Xianan steers were distributed in three groups equilibrated by weight and fed three different dietary treatments (concentrate ratio = 80%): (1) control; (2) 500 mg/kg daidzein and (3) 1000 mg/kg daidzein, respectively. Steers were slaughtered after an 80-day feeding trial. Results showed that daidzein supplementation had no effect on the final body weight, average daily gain and feed conversion rate of steers. Steers fed with 1000 mg/kg daidzein had greater dry matter intake than those fed with control diets. Compared with the control group, the 1000 mg/kg daidzein group had a higher fat thickness, lower shear force and lightness. The pH, drip loss, cooking loss, redness (a*), yellowness (b*), moisture, ash, crude protein and intramuscular fat of the Longissimus dorsi muscle were unaffected by daidzein supplementation. Compared with the control group, the 1000 mg/kg daidzein group significantly increased the serum concentrations of insulin, free fatty acid and Glutamic-pyruvic transaminase. The 500 mg/kg daidzein group significantly increased the serum concentration of tetraiodothyronine compared with the control group. Supplemental daidzein did not affect the blood antioxidant ability and blood immune parameters in serum. In conclusion, daidzein supplementation above 500 mg/day modifies feed intake and metabolic and hormonal profile, with positive and negative effects on meat quality.


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