55 Effect of Two Dietary Crude Protein Levels on Finishing Performance, Carcass Characteristics, and Meat Quality of Lambs.

2018 ◽  
Vol 96 (suppl_1) ◽  
pp. 29-30
Author(s):  
Y Huang ◽  
S Shelby ◽  
X Wang ◽  
J A Apple ◽  
K P Coffey
Keyword(s):  
Meat Quality ◽  
Crude Protein ◽  
Carcass Characteristics ◽  
Protein Levels ◽  
Dietary Crude Protein

Effects of dietary crude protein levels and cysteamine supplementation on meat quality and related indices of finishing pigs

2019 ◽  
Vol 99 (1) ◽  
pp. 123-131
Author(s):  
Y.P. Zhu ◽  
P. Zhou ◽  
L. Zhang ◽  
J.L. Li ◽  
F. Gao ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Meat Quality ◽  
Crude Protein ◽  
Finishing Pigs ◽  
Longissimus Dorsi Muscle ◽  
Protein Levels ◽  
Lipogenic Genes ◽  
Low Protein ◽  
Dietary Crude Protein

The aim of this study was to investigate the effects of dietary crude protein levels and cysteamine (CS) supplementation on meat quality and related indices in longissimus dorsi muscle of finishing pigs. One hundred and twenty barrows were randomly allocated to a 2 × 2 factorial arrangement with five replicates of six pigs each. The primary variations were crude protein levels (14% or 10%) and CS supplemental levels (0 or 140 mg kg−1). After 41 d, 10 pigs per treatment were slaughtered. The results showed that low-protein level diets (LPDs) decreased Warner–Bratzler shear force (P < 0.01) and increased the content of intramuscular fat (P < 0.01). The mRNA expressions of lipogenic genes were up-regulated (P < 0.01), and the mRNA expressions of lipolytic genes were down-regulated (P < 0.01) in pigs fed LPD. LPDs increased the mRNA expressions of μ-calpain, and decreased the mRNA expression of calpastatin (P < 0.01). In addition, CS supplementation increased the mRNA expression of μ-calpain (P < 0.01). In conclusion, LPD improved the meat quality probably through regulating the lipogenesis, lipolysis, and the proteolysis process in muscle. The CS supplementation did not affect the meat quality of finishing pigs. Moreover, no significant interaction between dietary protein levels and CS supplementation for the meat quality of finishing pigs was observed.

Effects of two dietary crude protein levels on finishing performance, meat quality, and gene expression of market lambs

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Yongjie Wang ◽  
Sarah Shelby ◽  
Jason Apple ◽  
Ken Coffey ◽  
Fred Pohlman ◽  
...  
Keyword(s):  
Gene Expression ◽  
Meat Quality ◽  
Crude Protein ◽  
Protein Levels ◽  
Dietary Crude Protein

Growth and carcass characteristics of camels given different level of protein and energy in Iran

1999 ◽  
Vol 1999 ◽  
pp. 224-224
Author(s):  
Y. Rouzbehan ◽  
A. Shadmanesh ◽  
N. Debiri ◽  
M. Eslami
Keyword(s):  
Crude Protein ◽  
Carcass Characteristics ◽  
Carcass Quality ◽  
Dietary Energy ◽  
Initial Weight ◽  
Factorial Anova ◽  
Protein Levels ◽  
Main Effects

Recently ,there is an incrase interest in fattening camals in Iran .This trial aimed to define the influence of dietary energy and protein levels on performance and carcass quality of camels in khorasan province.For 80 days, nine diets with three metaboliseble energy 10.9, 8.8 or 7.6 MJ /kg DM and three crude protein levels 140, 120, or 100 g/kg DM were offerd ad lib to thirty six camels (mean initial weight 183 kg ± 7.7) , where each treatment were randomly allocated to four animals, that were housed individually. Food intakes were recorded daily. Throughout the trial , all animals were weighed at fortnightly intervals. At the end of the project ,two animals from each treatment were slaughtered and carcass quality were determined. Data were analysed as a 3x3 factorial Anova, with energy and protein were the main effects.

scholarly journals Histopathological alterations in bullfrog juveniles fed commercial rations of different crude protein levels

2009 ◽  
Vol 38 (12) ◽  
pp. 2306-2310 ◽  
Author(s):  
José Teixeira de Seixas Filho ◽  
Marcio Hipolito ◽  
Ana Maria Cristina Rabello Pinto da Fonseca Martins ◽  
Eliane Rodrigues ◽  
Airton Antonio Castagna ◽  
...  
Keyword(s):  
Crude Protein ◽  
Renal Tubule ◽  
Histopathological Examination ◽  
Second Phase ◽  
Biological Value ◽  
Protein Levels ◽  
Dietary Crude Protein ◽  
Inflammatory Processes ◽  
The Relationship

The relationship between the quality of dietary crude protein and health of bullfrog juveniles (Lithobates catesbeianus) was evaluated by necropsy and histopathological examination of animals. The histopathology results showed that animals fed different feeds, regardless of CP levels, presented lymphocytary hepatitis, colitis and flattened microvillosities; kidneys with areas of tubulonephrosis and renal tubule calcification; myocarditis and cardiac muscular fiber dissociation. Such injuries suggested a degenerative nutritional process, with development of inflammatory processes spread to all the organs. These findings suggested that the animals had been fed with proteins of low biological value, indicating, apparently, poor feed quality, that harmed the health of the frogs and, consequently, their performance. Complementary studies are necessary to understand the biochemical behavior of the bullfrog in its second phase of life, supplying data for a better understanding of the nutrition of these animals.

scholarly journals The Effects of Decreasing Dietary Crude Protein on the Growth Performance, Feed Efficiency and Meat Quality of Finishing Charolais Bulls

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 906 ◽  
Author(s):  
Cortese ◽  
Segato ◽  
Andrighetto ◽  
Ughelini ◽  
Chinello ◽  
...  
Keyword(s):  
Meat Quality ◽  
Crude Protein ◽  
Average Daily Gain ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Gross Margin ◽  
Low Protein ◽  
Dietary Crude Protein ◽  
Feed Conversion Rate

This study aimed to evaluate the effect of decreasing dietary crude protein (CP) on the performance of finishing Charolais bulls in the Italian rearing system. Animals were fed two diets, differing only in the CP level (low protein (LP), 13.5% CP versus control (CON), 15.0% CP). Dry matter (DM) intake (DMI) and animals’ weights were recorded to obtain average daily gain (ADG) and feed conversion rate (FCR). Feed and fecal samples were collected to evaluate digestibility of diet components. Daily cost of the ration (DRC), feed cost per kg of daily weight gain (CDG) and daily gross margin (DGM) were calculated to analyze the possible benefits of decreasing the protein level. Meat quality analyses were also conducted. Higher DMI (10.6 versus 10 kg/d; p < 0.05) and ADG (1.47 versus 1.36 kg/d; p < 0.05) were observed for CON. No differences in FCR or digestibility were found. Even if the DRC was lower (p < 0.05) for the LP diet (2.26 versus 1.97 €; CON versus LP), no difference was reported for CDG and DGM. Meat lightness and redness were significantly lower and higher in the LP, respectively. To conclude, the CP requirement in these rearing conditions appeared to be higher than 13.5%.

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