scholarly journals Effect of Australian sweet lupin (Lupinus angustifolius L.) inclusion levels and enzyme supplementation on the performance, carcass composition and meat quality of grower/finisher pigs

2011 ◽  
Vol 51 (1) ◽  
pp. 37 ◽  
Author(s):  
J. C. Kim ◽  
B. P. Mullan ◽  
R. R. Nicholls ◽  
J. R. Pluske
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Carcass Composition ◽  
Lupinus Angustifolius ◽  
Enzyme Complex ◽  
Large White ◽  
Inclusion Level ◽  
Enzyme Supplementation ◽  
Finisher Diets

Two hundred and twenty-four crossbred male pigs (Large White × Landrace, initial bodyweight 27.2 kg ± 0.22) were used to determine the influence of dietary Australian sweet lupin (ASL) inclusion level and enzyme supplementation on growth performance, carcass composition and meat quality. The experiment was a 4 × 2 factorial design with the respective factors being ASL inclusion level (Lupinus angustifolius L., cv. Mandelup; 200, 250, 300 and 350 g/kg, in replacement of soybean meal) and enzyme supplementation (without or with supplemental enzyme; Allzyme SSF). Pigs (7 pigs per pen × 4 replicates per treatment = 28 pigs per enzyme by lupin-level combination) were fed grower diets between 27 and 50 kg, finisher diets between 50 and 75 kg and pre-sale diets between 75 and 107 kg, and daily gain and feed intake were measured weekly. At ~107 kg liveweight, the pigs were slaughtered at a commercial abattoir and carcass composition was measured. Meat quality (pH, surface exudate, drip loss, cooking loss, meat colour and shear force) was measured from selected pigs (n = 18) fed the lowest and highest lupin diets without enzyme supplementation. Increasing the ASL inclusion level to 350 g/kg did not alter (P > 0.05) growth performance of pigs and did not influence (P > 0.05) carcass composition and meat quality. Likewise, addition of supplemental enzyme had no effect (P > 0.05) on growth performance and carcass composition. Lack of performance response to added enzyme complex is likely due either to the use of enzyme complex that was not substrate-specific for the lupin non-starch polysaccharides or to the high specification of the experimental diets, which was inevitable when increasing inclusion levels of lupins. The results show that a current variety (Mandelup) of ASL can be used in grower/finisher diets up to 350 g/kg without compromising growth, carcass composition or meat quality of pigs.

scholarly journals Carcass characteristics of broilers fed enzyme complex

2015 ◽  
Vol 31 (2) ◽  
pp. 153-162 ◽  
Author(s):  
F.S. Dalólio ◽  
D.P. Vaz ◽  
J. Moreira ◽  
L.F.T. Albino ◽  
L.R. Valadares
Keyword(s):  
Meat Quality ◽  
Soybean Meal ◽  
Broiler Chickens ◽  
Broiler Chicks ◽  
Enzyme Complex ◽  
Carcass Yield ◽  
Randomized Design ◽  
Enzyme Supplementation ◽  
Water Holding

Enzyme supplementation in diets based on corn and soybean meal can improve the productive performance of broilers. Thus, we aimed to evaluate the effect of the inclusion of different levels of an enzyme complex consisting of phytase, protease, xylanase, ?-glucanase, cellulase, amylase, and pectinase, for diets based on corn and soybean meal, on the parameters of carcass yield and meat quality of broilers. Six hundred broiler chicks were used, and the animals were females with one day of age, from the Cobb 500 strain, and distributed in a completely randomized design, with five levels of inclusion of the enzyme complex (0, 100, 200, 300 and 400), and six repetitions, with twenty animals each. The carcass yield and meat quality were evaluated at 35 and 42 days of age. We evaluated the characteristics of weight loss by cooking (WLC), shear force (SF), water holding capacity (WHC), pH, lightness (L*) and color (a* and b*). The parameters of performance, carcass yield and carcass parts, and meat quality were not affected by the enzyme supplementation of diets fed to broiler chickens (P >0.05), except for the performance characteristics of the breast and the wings at 42 days of age (P < 0.05).

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.

The effect of castration and ewe proximity on the behaviour, performance and meat quality of housed male lambs

1995 ◽  
Vol 1995 ◽  
pp. 54-54
Author(s):  
J. M. L. Anderson ◽  
G. M. Webster
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Sexual Behaviour ◽  
Carcass Composition ◽  
Agonistic Behaviour ◽  
Endocrine Status ◽  
Sheep Production ◽  
Male Sheep

This trial sought to increase the knowledge of the changes in the endocrine status of male sheep as they mature and to link this with their sexual and agonistic behaviour when reared in the presence or absence of females; the influence of female lambs could significantly alter the behaviour, growth, performance, carcass composition and meat quality of entire and castrated male lambs. Therefore, this project could lead to improvements in the efficiency of sheep production by providing the background physiology necessary to understand sexual behaviour. This may lead to improved practices for the management of growing sheep, which may reduce the necessity to routinely castrate all male lambs.

scholarly journals Black soldier fly larval meal in feed enhances growth performance, carcass yield and meat quality of finishing pigs

2021 ◽  
pp. 1-16
Author(s):  
S.Y. Chia ◽  
C.M. Tanga ◽  
I.M. Osuga ◽  
A.O. Alaru ◽  
D.M. Mwangi ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Body Weight Gain ◽  
Control Diet ◽  
Protein Source ◽  
Feed Conversion ◽  
Large White ◽  
Black Soldier Fly ◽  
Pig Feed

Using black soldier fly (BSF, Hermetia illucens) larvae as a novel protein source substituting fishmeal (FM) in animal feeds is globally gaining momentum. BSF can be reared on agro-industrial residues. However, incorporating BSF larval meal (BSFLM) into finisher pig diets has received inadequate attention. This study evaluated the effects of replacing dietary FM with BSFLM on growth, carcass traits and meat quality of finisher pigs. A control diet (including FM: 0% BSFLM) was compared with four dietary levels of replacement of FM with BSFLM at 25, 50, 75 or 100%. Forty hybrid pigs (crossbreeds of purebred Large White and Landrace) were randomly allocated to the five different dietary treatments. Feed intake, body weight gain and feed conversion ratio were measured. After 98 days of feeding, all pigs were slaughtered for the evaluation of carcass and nutritional content of the organ and muscle tissues. Diet significantly affected pig growth performance. Carcass weight of pigs fed diets with BSFLM replacing FM by 50, 75 or 100% (w/w) was higher than for pigs fed control diet with 100% FM as protein source. Crude protein content of pork tissues was high (65-93% on dry-matter basis) across all dietary groups. Therefore, BSFLM can replace FM in pig feed. This is relevant for commercial pig feed production and provides for the first time a nutritional analysis of pork derived from pigs raised on BSFLM.

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.

Effect of condensed tannins from Birdsfoot trefoil and dietary protein level on growth performance, carcass composition and meat quality of ram lambs

2018 ◽  
Vol 169 ◽  
pp. 118-126 ◽  
Author(s):  
Eleonora Seoni ◽  
Gianni Battacone ◽  
Paolo Silacci ◽  
Silvia Ampuero Kragten ◽  
Jessika Messadene Chelali ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Dietary Protein ◽  
Protein Level ◽  
Condensed Tannins ◽  
Carcass Composition ◽  
Birdsfoot Trefoil ◽  
Dietary Protein Level ◽  
Ram Lambs

scholarly journals Effects of caponization on growth performance, carcass composition, and meat quality of medium growth broilers

2010 ◽  
Vol 89 (7) ◽  
pp. 1481-1489 ◽  
Author(s):  
G.K. Symeon ◽  
F. Mantis ◽  
I. Bizelis ◽  
A. Kominakis ◽  
E. Rogdakis
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Carcass Composition

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 Effects of caponization on growth performance, carcass composition and meat quality of males of a layer line

animal ◽  
2012 ◽  
Vol 6 (12) ◽  
pp. 2023-2030 ◽  
Author(s):  
G.K. Symeon ◽  
F. Mantis ◽  
I. Bizelis ◽  
A. Kominakis ◽  
E. Rogdakis
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Carcass Composition ◽  
Layer Line
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