scholarly journals Effect of active immunization against GnRH on androstenone concentration, growth performance and carcass quality in intact male pigs

2005 ◽  
Vol 92 (1) ◽  
pp. 31-38 ◽  
Author(s):  
P. Jaros ◽  
E. Bürgi ◽  
K.D.C. Stärk ◽  
R. Claus ◽  
D. Hennessy ◽  
...  
Keyword(s):  
Growth Performance ◽  
Active Immunization ◽  
Carcass Quality ◽  
Intact Male

scholarly journals The comparatives of growth and carcass performance of the Thai native chicken between economic selection (Chee KKU12) and natural selection (Chee N)

2020 ◽  
Vol 19 (2) ◽  
pp. 247-257
Author(s):  
Doungnapa Promket ◽  
◽  
Khanitta Ruangwittayanusorn ◽  
Keyword(s):  
Natural Selection ◽  
Growth Performance ◽  
Genetic Selection ◽  
High Growth ◽  
Carcass Composition ◽  
Daily Weight Gain ◽  
Carcass Quality ◽  
Economic Traits ◽  
Native Chicken ◽  
Carcass Performance

Chee is 1 of 4 important native chicken breed in Thailand. Genetic selection can be used to improve growth and carcass performance. The objective of this study was to compare growth and carcass performance of native chickens (Chee) with a population selected for economic traits (Chee KKU12) and natural selection (Chee N). Two hundred Chee KKU12 and Chee N chickens were divided into 5 replicates, 20 chickens per replication. Record growth and carcass quality for data analysis. The results showed that at 12 weeks of age, Chee KKU12 chickens (1,279.484 g) had a higher body weight than did Chee N chickens (1,180.212 g). The averages daily weight gain at 4-6, 6-8, and 0-12 weeks of age of Chee KKU12 chicken (17.861,19.230, and 14.843 grams) was higher than Chee N chickens (16.284, 17.497, and 13.668 g) (P<0.05). The carcass quality with mixed gender showed that Chee KKU12 chickens had higher breast (20.859%) and abdominal fat (0.659%) than Chee N chicken (19.585% and 0.217%, respectively) (P<0.05), but Chee KKU12 chicken thigh (17.007%) was significantly lower than Chee N chickens (18.627%). Regression analysis revealed that the selection of Chee KKU12 chickens for gain in weight will result in better carcass composition including wing (0.074 g), breast (0.089 g), and drumstick (0.134 g), while Chee N chicken had better thigh (0.189 g) when selected for high growth performance (P<0.05). It was concluded that chicken population selected for economic traits has a better growth performance in open housing conditions than naturally selected chickens.

scholarly journals Performance and carcass evaluation of balami rams finished on diets with varying energy level

2020 ◽  
Vol 44 (2) ◽  
pp. 223-229
Author(s):  
S. B. Akinleye ◽  
A. B. Omojola ◽  
U. A. Offong ◽  
K. D. Afolabi ◽  
J. S. Luka
Keyword(s):  
Growth Performance ◽  
Energy Levels ◽  
Descriptive Statistics ◽  
Farm Animals ◽  
Daily Weight Gain ◽  
Carcass Quality ◽  
Dietary Energy ◽  
Genetic Status ◽  
Study Performance

Fattening of farm animals is a way of increasing the rate of meat deposit after maturity. Its effectiveness depends on genetic status of the animal and the diet fed to the animal. In this study, performance and carcass evaluation of balami rams finished on diets with varying energy levels were carried. Forty-eight rams of Balami breed, weighing 20.75±1.50- 22.50±1.91kg were randomly alloted to four dietary energy levels (EL): 2.20Mcal/kg (EL ), I 2.40 Mcal/kg ((EL ), 2.60 Mcal/kg ((EL ) and 2.80 Mcal/kg ((EL ) for 90 days. The feed II III IV intake and daily weight gain of the animals in each treatment were determined and the average recorded. Three Balami rams were randomly selected from each treatment and sacrificed to determine the dressing percentage (DP), carcass weight (CW), fat deposit (FD) and meat yield (MY). Data were analysed using descriptive statistics and ANOVA at á . The 0.05 FBW (kg) of Balami rams in group EL , EL , EL and EL were 41.88.6±1.97, 42.12±1.84, I II III IV 46.13±1.65 and 52.24±2.50 while the FCR of animals on treatments EL (5.3±0.28) and EL I II (5.2±0.26) were higher than EL (4.7±0.82) and EL (4.0±0.65). The DP (%) were 54.9, III IV 54.9, 55.8 and 56.1, the FD (%) were 9.00,9.59,8.92 and 11.46 and the MY (%) were 75.2, 74.7, 75.5 and 72.0 for rams on EL , EL , EL and EL The results indicate that, increasing I II III IV. levels of energy improved growth performance and carcass quality of Balami rams. Therefore, higher level of dietary energy (2.80 Mcal/kgDM and 14% CP) could be suggested for optimizing growth performance and meat quality of Balami ram under fattening condition.

scholarly journals Investigation upon the effect of the vaccination against the respiratory form of Aujeszky's disease with a deletion mutant gE-/TK- vaccine in growing/fattening pigs

2018 ◽  
Vol 48 (2) ◽  
pp. 70
Author(s):  
J. C. PAPATSAS (I.K. ΠΑΠΑΤΣΑΣ) ◽  
S. C. KYRIAKIS (Σ.Κ. ΚΥΡΙΑΚΗΣ) ◽  
O. PAPADOPOULOS (ΠΑΠΑΔΟΠΟΥΛΟΣ Ο.) ◽  
K. SARRIS (Κ. ΣΑΡΡΗΣ) ◽  
S. LEKKAS (Σ. ΛΕΚΚΑΣ)
Keyword(s):  
Growth Performance ◽  
Bacterial Infections ◽  
Pasteurella Multocida ◽  
Growth Parameters ◽  
Growing Pigs ◽  
Control Group ◽  
Carcass Quality ◽  
Aujeszky's Disease ◽  
Aujeszky’S Disease ◽  
Fattening Pigs

In this trial study, the effect of the vaccination of growing/fattening pigs against Aujeszky's disease virus (ADV) was investigated, in a farm placed in an endemic to ADV area. Three different trial groups of 11-week old growing pigs were vaccinated either once or twice or left unvaccinated. Comparisons between groups were made with respect to growth parameters, carcass quality, as well as pathological and bacteriological findings. All vaccinated animals had significantly better growth performance and carcass quality in comparison to the unvaccinated group, while no significant differences were observed between once and twice vaccinated animals. Lower lungs' affection due to secondary pathogens was also observed in vaccinated groups when compared with the control group of pigs. Bacteriological examination revealed that the frequency of secondary pulmonary bacterial infections, such as Streptococcus suis and Pasteurella multocida was lower in vaccinated pigs compared to controls. It was concluded that single and probably double vaccination against ADV may improve growth performance and carcas quality and may reduce lung affection due to certain secondary pathogens, under the management conditions of the trial farm.

Effects of castration on growth rate, feed conversion efficiency and carcass quality in Damascus goats

1977 ◽  
Vol 24 (3) ◽  
pp. 387-391 ◽  
Author(s):  
A. Louca ◽  
S. Economides ◽  
J. Hancock
Keyword(s):  
Growth Rate ◽  
Sexual Activity ◽  
Conversion Efficiency ◽  
Live Weight ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Intact Male ◽  
Goat Meat ◽  
Feed Conversion Efficiency

SUMMARYOne hundred and forty-two kids of the Damascus breed of goat were used over a 10½-mo period to study the effects of early castration (at 7 days of age) on growth, feed conversion efficiency and carcass quality and late castration (at 7½ mo of age) on the presence or absence of taint in goat meat.Intact male kids grew faster and used feed more efficiently than castrates until they were about 9 mo old (56 kg live weight). There- after intact kids exhibited strong sexual activity and as a result their growth ceased completely whereas castrates continued growing. Early castrates produced fatter carcasses than those of intact kids. Castration of male kids at the age of about 7½ mo (44 kg live weight) was not successful in this trial and the kids performed very poorly. A taint of varying intensity was present in the meat of intact goats but not in that from any of the early or late castrates.

scholarly journals Effects of yeast combined with chromium propionate on growth performance and carcass quality of finishing steers1

2016 ◽  
Vol 94 (7) ◽  
pp. 3003-3011 ◽  
Author(s):  
C. L. Van Bibber-Krueger ◽  
J. E. Axman ◽  
J. M. Gonzalez ◽  
C. I. Vahl ◽  
J. S. Drouillard
Keyword(s):  
Growth Performance ◽  
Carcass Quality ◽  
Chromium Propionate

Eating quality evaluation of meat from the crossbred lamb progeny of three terminal sire breeds

1992 ◽  
Vol 1992 ◽  
pp. 177-177
Author(s):  
M. Ellis ◽  
G.M. Webster ◽  
I. Brown ◽  
B.G. Merrell
Keyword(s):  
Growth Performance ◽  
Quality Evaluation ◽  
Eating Quality ◽  
Consumer Acceptability ◽  
Carcass Quality ◽  
Terminal Sire

Consumer acceptability of lamb is ultimately determined by the eating quality of the meat. This paper reports on the eating quality evaluation of lean samples obtained from carcasses of crossbred lambs sired by Suffolk, Texel and Charollais rams.The lambs used in this study were part of a larger experiment to compare the growth performance and carcass quality of lambs sired by rams of the Suffolk, Texel and Charollais breeds (Merrell, Webster and Ellis, 1990: BSAP Occasional Publication No. 14, pp. 169-172).An upland flock of approximately 350 Mule (Bluefaced Leicester ♂ x Scottish Blackface ♀) was used to produce the lambs. Eight unrelated rams of each of the three sire breeds were mated to the ewes over two years (4 rams per breed per year). Their crossbred progeny were selected for slaughter when it was estimated that they would produce carcasses of Meat and Livestock Commission fat class 2 to 3L. All lambs had been multiple-born and reared as twins.

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