The effects of feeding a chocolate product on growth performance and meat quality of finishing swine

1997 ◽  
Vol 77 (1) ◽  
pp. 1-8 ◽  
Author(s):  
E. P. McNaughton ◽  
R. O. Ball ◽  
R. M. Friendship
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Composition ◽  
Carcass Quality ◽  
Finishing Pigs ◽  
Chocolate Product ◽  
Swine Diets ◽  
Daily Gain

The effects of including a waste chocolate confectionary product in swine diets on growth performance, carcass composition and meat quality of finishing pigs were determined. Four isocaloric, isonitrogenous diets were formulated to include 0, 10, 20 and 30% of a chocolate product in a pelleted corn and soybean-meal-based-diet and fed ad libitum to 32 gilts and 32 barrows from 54 kg to 105 kg. There were no significant differences among diets for average daily gain, feed intake and feed efficiency. Fat content in the diets increased from 3 to 7% with increasing inclusion, but there were no significant (P > 0.05) differences for backfat depth, total dissected fat, total lean or percent lean of the dissected carcass. With respect to meat quality, there were no significant differences observed for colour, structure and marbling of the loin and ham muscle. There were no treatment differences for the firmness of the inner backfat of pigs consuming the various diets. Waste chocolate confectionary can be fed to growing swine at inclusion levels up to 30% of the diet with no adverse effects on growth or carcass quality. Key words: Alternative feedstuff, chocolate, pigs, growth performance, carcass quality

Comparison of 2 growth patterns during the growing period in fattening bulls. 3. slaughter characteristics, carcass composition and meat quality

1993 ◽  
Vol 1993 ◽  
pp. 217-217
Author(s):  
A. Clinquart ◽  
C. Van Eenaeme ◽  
T. Van Vooren ◽  
J. Van Hoof ◽  
L. Istasse
Keyword(s):  
Meat Quality ◽  
Food Restriction ◽  
Early Stage ◽  
Average Daily Gain ◽  
Live Weight ◽  
Growth Patterns ◽  
Carcass Composition ◽  
Growing Period ◽  
Daily Gain

The degree to which growth patterns are modified after a period of food restriction affects the compositional changes of the carcasses(Carstens et al., 1992), furthermore, the growth rate has a direct effect on the physical properties of meat (Fishell et al., 1985). The objective of this experiment was to evaluate the effects of a severe food restriction at a early stage of maturity on the slaughter characteristics and meat quality of Belgian Blue bulls.Twelve Belgian Blue bulls (dual purpose type) weighing 233 kg were offered two different planes of nutrition during the growing period. Six bulls (Group-) received a restricted diet so that their average daily gain was 0.34 kg/d (Group+) during 202 days. By contrast six other bulls were given a more conventional growing diet and their average daily gain was 1.13 kg/d. Both Groups were fattened with similar diet and slaughtered when the live weight was close to 600 kg. Carcass weight was measured and killing-out proportion calculated, the composition of the carcass was estimated after dissection of ribs 7, 8, 9 removed 48 h post-mortem.

scholarly journals Effects of immunocastration on growth performance, body composition, meat quality, and boar taint

2017 ◽  
Vol 62 (No. 6) ◽  
pp. 249-258
Author(s):  
R. Stupka ◽  
J. Čítek ◽  
K. Vehovský ◽  
K. Zadinová ◽  
M. Okrouhlá ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Composition ◽  
The Other ◽  
Boar Taint ◽  
Large White ◽  
Study Objective ◽  
Negative Effect ◽  
Daily Gain

The study objective was to evaluate the effect of immunocastration in the period between the first and second vaccinations and subsequently between the second vaccination and slaughter on growth performance, carcass composition, meat quality, and boar taint, and compare results in immunocastrated males (IC), uncastrated boars (UCM), surgically castrated barrows (CM), and gilts (FE). The study included 70 pigs of the Duroc × (Large White × Landrace) crossbreed. Upon the overall assessment of the selected fattening indicators (average daily gain, feed intake), significant differences between CM and the other groups were demonstrated. Meanwhile, no significant differences were found between the IC, UCM, and FE groups. In this test, immunocastrates showed no negative effect from the second vaccination in relation to those carcass value indicators evaluated in comparison with UCM and FE. CM showed adversely lower carcass value parameters compared the other groups. No significant differences in pH, meat colour, drip loss, shear force, and intramuscular fat were found. The values of these indicators obtained for IC converged with those measured in UCM and FE. It was demonstrated that immunocastration prevented the occurrence of undesired boar taint. Androstenone decreased by 77% and skatole by 71% in IC as compared to UCM.

scholarly journals The “Criollo Negro de la Costa Ecuatoriana” pigs: effect of sex and rearing system on performance, carcass and meat traits

2016 ◽  
Vol 14 (1) ◽  
pp. e0601
Author(s):  
Martín A. González ◽  
Franklin R. Peláez ◽  
Andrés L. Martínez ◽  
Carmen Avilés ◽  
Francisco Peña
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Mineral Composition ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Morphometric Parameters ◽  
Lower Percentage ◽  
Quality Traits ◽  
Daily Gain

<p>The objective of this study was to evaluate the effect of rearing system (confinement, C <em>vs </em>semi-confinement, SC) and sex (barrows <em>vs </em>females) on growth performance, carcass traits and meat quality of “Criollo negro de la costa ecuatoriana” pigs. A total of 32 pigs, 16 barrows and 16 gilts were used. The average daily gain (0.30 kg/day <em>vs </em>0.22 kg/day), slaughter weight (51.4 kg <em>vs </em>43.1 kg), morphometric parameters and weights for the most valuable meat cuts were higher in C pigs than in SC pigs, whereas hot and cold carcass yields were higher in SC pigs than in C pigs. The loin and sirloin percentages from C pigs were lower and higher compared with those SC pigs, respectively. Carcass of C pigs showed higher percentage of fat and lower percentage of lean and bone that SC pigs. The rearing system had scarce effects on meat quality traits and mineral composition. Meat from C pigs showed lower scores for color, brightness, and unctuousness, and higher for metallist taste, juiciness and persistence of flavor than SC pigs. Few sensory attributes of cooking chops were affected by sex. Metallist taste was higher in barrows, while brightness and lard flavor were higher in females. It can be concluded that the rearing system had a significant effect on most of the productive and carcass traits, whereas its effect was limited on the meat traits. Sex had little influence on most of the traits studied.</p>

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.

Effect of choline chloride with propylene glycol on growth performance, and meat quality in finishing pigs

2018 ◽  
Author(s):  
Yang Jiao ◽  
Sang In Lee ◽  
In Ho Kim
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Propylene Glycol ◽  
Meat Quality ◽  
Choline Chloride ◽  
Average Daily Gain ◽  
Finishing Pigs ◽  
Basic Diet ◽  
Dietary Treatments ◽  
Daily Gain

This study was conducted to evaluate the effect of choline chloride alone and in combination with propylene glycol on the growth performance, meat quality and backfat in finishing pigs. A total of 90 crossbred ((Landrace× Yorkshire)× Duroc) pigs with an average initial body weight (BW) of 75.15± 1.94 kg were randomly distributed by BW and sex. This 8-week experiment consisted of 3 dietary treatments with 6 replications per treatment and 5 pigs per pen. The experiment included 3 treatments: CON, basic diet; TRT1, basic diet+0.05% choline chloride; TRT2, basic diet+0.05% biocholine P (chloride chloride and propylene glycol). Body weight was statistically higher (P less than 0.05) in pigs fed TRT2 diet than the CON diet in week 8. During 4 to 8 weeks and overall, the average daily gain (ADG) was significant higher (P less than 0.05) in the pigs fed TRT2 diet than the CON diet. Digestibility of nitrogen was significantly increased (P less than 0.05) at week 4 and week 8, back fat was higher (P less than 0.05) in week 6 and week 8 in pigs fed TRT2 diet than the CON diet. In conclusion, dietary TRT2 can increase the BW, ADG, nitrogen, and backfat in finishing pigs.

The effect of the halothane gene on pork production and meat quality of pigs reared under commercial conditions

1991 ◽  
Vol 71 (4) ◽  
pp. 959-967 ◽  
Author(s):  
A. P. Sather ◽  
A. C. Murray ◽  
S. M. Zawadski ◽  
P. Johnson
Keyword(s):  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Quality ◽  
Swine Production ◽  
Anterior Portion ◽  
Pork Production ◽  
Longissimus Dorsi Muscle ◽  
Reflectance Meter ◽  
Daily Gain

Production and meat quality traits were evaluated on 74 commercially raised heterozygous pigs (Nn) and 50 homozygous normal pigs (NN) at the halothane locus, with an average carcass weight of 79.7 kg. Eight-week weight, average daily gain and age to market, as well as measures of carcass quality (i.e., dressing percent, grade site fat and muscle depths and predicted lean yield) did not differ among pigs with Nn and NN genotypes. The longissimus dorsi muscle from Nn and NN pigs had similar subjective colour and structure scores. Reflectance meter readings (CIE L*-values) were significantly higher on chops from Nn than from NN pigs taken from the centre (57.4 vs. 55.6) and from the anterior portion (56.2 vs. 54.5) of the loin. Drip loss among Nn pigs was higher than among NN pigs for chops taken from the centre (4.8 vs. 3.8 g 100 g−1) and from the anterior portion (3.7 vs. 2.9 g 100 g−1) of the loin (P < 0.01). Soluble protein was 1.7% lower (P < 0.001) in Nn pigs compared with the NN pigs. Barrows attained market weight earlier (P < 0.05) than gilts, but they had a lower dressing percentage (P < 0.05) and greater grade fat depth (P < 0.001) and had 1.2% less predicted lean yield of carcass (P < 0.001) than gilts. Since meat quality declined without concomitant increases in growth rate or improvements in carcass quality, it was concluded that the intentional use of the halothane gene should be discouraged. Key words: Swine, production, carcass quality, meat quality, halothane gene

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.

scholarly journals Effects of Dietary Energy on Growth Performance, Rumen Fermentation and Bacterial Community, and Meat Quality of Holstein-Friesians Bulls Slaughtered at Different Ages

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1123 ◽  
Author(s):  
Haibo Wang ◽  
Hang Li ◽  
Fei Wu ◽  
Xinjun Qiu ◽  
Zhantao Yu ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Growth Performance ◽  
Meat Quality ◽  
Energy Levels ◽  
Average Daily Gain ◽  
Rumen Fermentation ◽  
Dietary Energy ◽  
Different Ages ◽  
Slaughter Age

The objective of this study was to evaluate the effects of dietary energy levels on growth performance, rumen fermentation and bacterial community, and meat quality of Holstein-Friesians bulls slaughtered at different ages. Thirty-six Holstein-Friesians bulls (17 months of age) were divided into a 3 × 3 factorial experiment with three energy levels (LE, ME and HE; metabolizable energy is 10.12, 10.90 and 11.68 MJ/kg, respectively) of diets, and three slaughter ages (20, 23 and 26 months). Results indicated that bulls fed with ME and HE diets had higher dry matter intake, average daily gain, and dressing percentage at 23 or 26 months of age. The ME and HE diets also reduced bacterial diversity, altered relative abundances of bacteria and produced lower concentrations of acetate, but higher butyrate and valerate concentrations in rumen fluid. Increasing in dietary energy and slaughter age increased the intramuscular fat (IMF) and water holding capacity. In summary, Holstein-Friesians bulls fed with ME and HE diets, slaughtered at 23 and 26 months of age could be a good choice to produce beef with high IMF. Slaughter age may have less influence than dietary energy in altering fermentation by increasing amylolytic bacteria and decreasing cellulolytic bacteria, and thus, further affecting meat quality.

An evaluation of beef carcass quality 1. The influence of cereal feeding on the growth and carcass quality of Friesian steers

1972 ◽  
Vol 15 (3) ◽  
pp. 215-227 ◽  
Author(s):  
C. E. Hinks ◽  
J. H. D. Prescott
Keyword(s):  
Meat Quality ◽  
Live Weight ◽  
Carcass Composition ◽  
Factorial Experiment ◽  
Carcass Quality ◽  
Grazing Cattle ◽  
Weight Gains ◽  
Second Period ◽  
Tasting Panel

SUMMARYTwenty-four Friesian steers, initially 5 months of age, were involved in a 2 × 2 factorial experiment which spanned grazing and silage feeding periods of 22 weeks' duration. In the first period, cattle were stocked at a uniformly high density, with half of the group being fed 1·25 kg/head per day of supplementary barley. In the second period, the cattle were subdivided into four groups and fed varying levels of barley with silage. Finally all the animals received 3·65 kg/head per day of barley. Replicates of the four treatments were slaughtered at random after 5 to 11 weeks on this treatment. Whilst supplementary cereal feeding significantly increased the live-weight gains of steers at grass by 11%, this live-weight advantage was offset by their slower gains in the final weeks before slaughter. Feeding cereals to grazing cattle had little effect on carcass composition or the proportions of carcass joints, but their beef was considered, by a tasting panel, to be more tender than the meat from the control steers.Increasing the level of barley fed with silage only increased live-weight gains by 2%, and had little effect on carcass or meat quality.

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