Meat quality of commercial turkey strains with slower growth rate

2021 ◽  
Author(s):  
A. Olschewsky* ◽  
U. Knierim ◽  
K. Riehn
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Commercial Turkey

The Effect of Feeding System on the Carcass Quality of Crossbred Lambs with Texel

2020 ◽  
Vol 68 (1) ◽  
pp. 17-24
Author(s):  
Angela Cividini ◽  
Dušan Terčič ◽  
Mojca Simčič
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Carcass Quality ◽  
Quality Traits ◽  
Feeding System ◽  
Ad Libitum ◽  
Daily Gain ◽  
Effect Of Feeding ◽  
Carcass Cuts

The aim of this study was to estimate the effect of feeding system on the growth rate and carcass quality of crossbred Improved Jezersko-Solčava x Texel (JSRT) lambs and to evaluate the effect of sex on these traits. The trial was conducted in nature according to the traditional rearing systems. The trial included 44 crossbred lambs, which were born and reared until the slaughter in three different flocks. In the age of 10 days suckled lambs were offered with ad libitum corresponding diets according to the feeding system. All lambs were slaughtered in seven consecutive days by the same procedure. The effect of feeding system significantly affected daily gain from birth to slaughter, EUROP carcass conformation and shoulder width. Likewise, the effect of sex significantly affected daily gain from birth to slaughter and internal fatness of carcasses. According to carcass cuts the feeding system significantly affected only the proportion of neck and leg. Considering meat quality traits, feeding system had a significant effect on the pH 45 and CIE a* values. In this study, we could speculate that more than the feeding system the growth and the carcass traits as well as meat traits were affected by the amount of the supplement.

The effect of breed and dietary energy concentration on lamb growth, carcass composition and meat quality

1996 ◽  
Vol 1996 ◽  
pp. 109-109
Author(s):  
M.I. Mustafa ◽  
G.M. Webster ◽  
Gillian M. Povey
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Tissue Growth ◽  
Carcass Composition ◽  
Metabolizable Energy ◽  
Energy Concentration ◽  
Eating Quality ◽  
Lamb Growth ◽  
Different Levels

Previous trials at Newcastle have shown that plane of nutrition affects the growth performance, carcass composition and eating quality of lambs (Mustafa and Webster, 1995). It has also been found that lean tissue growth rate, a characteristic it is possible to manipulate nutritionally, influences meat quality in pigs and cattle (Whipple et al., 1990; Blanchard et al., 1995), although no similar studies have been undertaken with growing lambs. This experiment was designed to study the effect of four diets with different levels of metabolizable energy (ME) but with the same crude protein and undegradeable protein (DUP) levels on growth, carcass composition, tissue growth rate and meat quality characteristics of lambs of two breeds.

scholarly journals Sustained growth promotion, carcass and meat quality of steers slaughtered at three liveweights

2001 ◽  
Vol 41 (7) ◽  
pp. 1033 ◽  
Author(s):  
R. A. Hunter ◽  
H. M. Burrow ◽  
G. J. McCrabb
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Growth Promotion ◽  
Domestic Market ◽  
Carcass Composition ◽  
Eating Quality ◽  
Japanese Market ◽  
Sustained Growth ◽  
Feedlot Steers

The experiment measured the effect of a sustained growth promotion strategy on growth rate, carcass characteristics, and meat quality of Brahman and F 1 Brahman crossbred steers. Meat quality was assessed objectively by laboratory measurement and a subset of samples evaluated subjectively by consumer taste panels. Steers were allocated to one of 12 treatment groups; 2 implant strategies × 3 liveweights at slaughter × 2 nutritional finishing strategies. The 2 implant strategies were unimplanted controls and implantation with 20 mg oestradiol-17β (Compudose) every 100 days. The target carcass weights at slaughter were about 220 kg (Australian domestic market), about 280 kg (Korean market) and about 320 kg (Japanese market). Steers were finished either at pasture or on a grain-based diet in a feedlot. For every treatment group except where steers were finished in a feedlot for the domestic market, the implant strategy resulted in significantly (P<0.01) heavier final liveweights, significantly (P<0.01) greater cumulative liveweight gains and significantly (P<0.05) heavier carcass weights. The magnitudes of the significant liveweight responses ranged from 30 kg for pasture fed steers for the domestic market to 47 kg for pasture fed steers for the heavier weight Japanese market. Repeated treatment with oestradiol-17β had no significant effect on carcass composition as determined by indices of carcass lean and carcass fat. The additional yield of retail beef from implanted steers was principally associated with increased carcass weight. The magnitude of the increase in beef yield was 8 kg (n.s.) for domestic, feedlot steers; 15 kg (P<0.01) for Korean, feedlot steers and 18 kg (P<0.001) for Japanese, feedlot steers. In steers finished in the feedlot for the Korean and Japanese markets, sustained growth promotion was associated with a significant (P<0.01) decrease in meat tenderness as measured by peak force. In contrast there was no such effect in other groups measured (domestic market, feedlot finished and Japanese market, pasture finished). Consumer assessment of eating quality was conducted on steaks from steers, finished in a feedlot for the Korean and Japanese markets. At both slaughter weights there was no significant effect of treatment on tenderness, juiciness, flavour, overall acceptability or meat quality score which combined tenderness, juiciness, flavour and overall quality. However, mean preference scores from implanted steers were consistently lower than those from control steers. It was concluded that the aggressive implant strategy resulted in substantial increases in weight gain that were more pronounced during periods of moderate growth rate relative to periods of very low rates of gain. During periods of low weight gains or weight stasis there was little advantage from implantation. Carcass composition was not significantly modified by treatment with oestradiol. The effect of the aggressive implantation strategy on eating quality of the beef was equivocal and further investigation is certainly warranted.

The effect of breed and dietary energy concentration on lamb growth, carcass composition and meat quality

1996 ◽  
Vol 1996 ◽  
pp. 109-109
Author(s):  
M.I. Mustafa ◽  
G.M. Webster ◽  
Gillian M. Povey
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Tissue Growth ◽  
Carcass Composition ◽  
Metabolizable Energy ◽  
Energy Concentration ◽  
Eating Quality ◽  
Lamb Growth ◽  
Different Levels

Previous trials at Newcastle have shown that plane of nutrition affects the growth performance, carcass composition and eating quality of lambs (Mustafa and Webster, 1995). It has also been found that lean tissue growth rate, a characteristic it is possible to manipulate nutritionally, influences meat quality in pigs and cattle (Whipple et al., 1990; Blanchard et al., 1995), although no similar studies have been undertaken with growing lambs. This experiment was designed to study the effect of four diets with different levels of metabolizable energy (ME) but with the same crude protein and undegradeable protein (DUP) levels on growth, carcass composition, tissue growth rate and meat quality characteristics of lambs of two breeds.

A comparison of concentrate and silage-based finishing diets on the performance, carcass composition and meat quality of suffolk cross and scottish blackface lambs

1995 ◽  
Vol 1995 ◽  
pp. 90-90
Author(s):  
M. I. Mustafa ◽  
G. M. Webster
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Meat Quality ◽  
Quality Characteristics ◽  
Carcass Composition ◽  
Eating Quality ◽  
Carcass Quality ◽  
Finishing Diets

There is great variation in lamb carcass quality due to there being many breeds and crosses involved in lamb production. Breed of lamb appears to influence the pattern of development of the important carcass components, and thus the carcass quality, when comparison is made at equal weights. Plane of nutrition may also affect the growth rate, carcass composition and eating quality of lambs of the same genotype. It was planned to study the effect of both breed and diet on growth performance, carcass and meat quality characteristics by feeding two different diets to the lambs of two different breeds similarly managed from birth to slaughter.

scholarly journals Growth rate, carcass characteristics and meat quality of growing lambs fed buckwheat or maize silage

2018 ◽  
Vol 31 (4) ◽  
pp. 522-528 ◽  
Author(s):  
Gurhan Keles ◽  
Veli Kocaman ◽  
Ahmet Onder Ustundag ◽  
Aslı Zungur ◽  
Mursel Ozdogan
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Carcass Characteristics ◽  
Maize Silage

Continued studies on the effect of grain or pasture on the carcass composition and meat quality of Friesian steers

1977 ◽  
Vol 28 (4) ◽  
pp. 755 ◽  
Author(s):  
HL Davies
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
White Clover ◽  
High Energy ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Restricted Group ◽  
Ad Libitum ◽  
Dressing Percentage

Twenty-one Friesian steers were grown to a final fasted liveweight of 469 kg. Seven of the steers grazed irrigated ryegrass-white clover pastures, seven steers were fed on a high energy ration ad libitum, and seven were given a ration of the same composition as the second group but at a restricted amount such that the growth rate was similar to that of the grazing steers. There were no significant differences in carcass weight between the three groups. The dressing percentage of the grain ad libitum group was 58%, the restricted grain group 57% and the pasture group 55%. The dressing percentage was significantly lower (P < 0.05) in the pasture group. The grain ad libitum group had 51.5% more (P < 0.05) oaental fat than the pasture group, and the restricted group 28.9% more (P < 0.05) than the pasture group. In dissections of the 9th, 10th and 11th ribs the grain ad lib. group had 35.4% fat, the restricted grain group 32.8% and the pasture group 26.5%, the proportion of fat being significantly (P < 0.05) lower in the pasture group than in the grain ad lib. group. No significant differences were found in either tenderness, juiciness or flavour between the three groups.

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