scholarly journals Effects of Stock Density and Nutrient Levels on Growth Performance, Serum Profile, Immune Status and Meat Quality in Korean Native Chickens

2021 ◽  
Vol 48 (2) ◽  
pp. 91-100
Author(s):  
KwangYeol Kim ◽  
Jin-Joo Jeon ◽  
Hyunsoo Kim ◽  
Jiseon Son ◽  
Hee-Jin Kim ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Immune Status ◽  
Nutrient Levels ◽  
Native Chickens

Do different vaccination regimes affect the growth performance, immune status, carcase characteristics and meat quality of broilers?

2020 ◽  
pp. 1-6
Author(s):  
E. L. T. Chung ◽  
M. M. Alghirani ◽  
M. H. Kamalludin ◽  
N. Nayan ◽  
F. F. A. Jesse ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Immune Status

scholarly journals Effects of Stocking Density on the Growth Performance, Immune Status and Breast Meat Quality of Broiler

2021 ◽  
Vol 48 (1) ◽  
pp. 13-22
Author(s):  
Hee-Jin Kim ◽  
Jin-Joo Jeon ◽  
Hyun-soo Kim ◽  
Jiseon Son ◽  
Kwang-Yeol Kim ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Immune Status ◽  
Stocking Density ◽  
Breast Meat

scholarly journals Effects of Dietary Nutrient Levels on Growth Performance, Blood Urea Nitrogen, and Meat Quality in Finishing Pigs

2007 ◽  
Vol 27 (4) ◽  
pp. 387-391
Author(s):  
Seung-Oh Shin ◽  
Jin-Ho Cho ◽  
Hae-Jin Kim ◽  
Ying-Jie Chen ◽  
Jong-Sang Yoo ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Blood Urea Nitrogen ◽  
Finishing Pigs ◽  
Urea Nitrogen ◽  
Nutrient Levels ◽  
Dietary Nutrient

scholarly journals Association of residual feed intake with growth performance, carcass traits, meat quality, and blood variables in native chickens

2020 ◽  
Vol 98 (7) ◽  
Author(s):  
Lei Yang ◽  
Xiaolong Wang ◽  
Tingting He ◽  
Fengliang Xiong ◽  
Xianzhen Chen ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Meat Quality ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Carcass Traits ◽  
Plasma Concentrations ◽  
Abdominal Fat ◽  
Native Chickens ◽  
Blood Variables

Abstract Improving feed efficiency is a primary goal in poultry breeding strategies. Residual feed intake (RFI) in chickens typically calculated during the growing period is a measure of feed efficiency that is independent of the level of production. The objective of this study was to evaluate phenotypic correlations of growth performance, carcass traits, meat quality, and blood variables with RFI in growing native chickens. A total of 1,008 chickens were selected for the experiment to derive RFI. After the RFI measurement period of 42 d, 25 chickens with low RFI values, 25 chickens with medium RFI values, and 25 chickens with high RFI values were selected. The RFI was significantly positively correlated with feed conversion ratio and average daily feed intake, while it was not significantly correlated with initial body weight (BW), final BW, average daily body weight gain, and metabolic BW0.75. The abdominal fat weight and yield of high RFI group were significantly greater than those of medium and low RFI groups, and the abdominal fat yield was significantly positively correlated with RFI. Moreover, the plasma insulin-like growth factor 1 (IGF-1) content of low RFI group was significantly greater than those of high and medium RFI groups. The plasma concentrations of adrenocorticotropic hormone, triiodothyronine (T3), and cortisol of high RFI birds were significantly greater than that of low RFI birds. RFI was significantly positively correlated with plasma concentrations of T3 and cortisol, while it was significantly negatively correlated with plasma concentration of IGF-1. In addition, the serum levels of glucose and triglyceride of high RFI birds were significantly lower than that of low RFI birds. The serum low-density lipoprotein cholesterol (LDL-C) content of high RFI group was significantly greater than that of medium and low RFI groups, and it was significantly positively correlated with RFI. Our data suggested that selection of chickens with low RFI values may be beneficial to reduce fat deposition in native chickens without affecting the meat quality. Circulating IGF-1, T3, cortisol, and LDL-C concentrations can be used as indirect selection indicators of feed efficiency in native chickens. The effect of IGF-1, T3, cortisol, and LDL-C on feed efficiency of native chickens should be carefully examined and validated in future breeding programs.

Intestinal digestibility of selected minerals, growth performance and meat quality in turkeys fed diets supplemented with different sources and levels of zinc

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Kamil Otowski ◽  
Aleksandra Drażbo ◽  
Katarzyna Ognik ◽  
Krzysztof Kozłowski
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Redox Status ◽  
Bursa Of Fabricius ◽  
Breast Meat ◽  
Zn Addition ◽  
Inclusion Level ◽  
Dietary Treatments ◽  
Different Sources ◽  
Intestinal Digestibility

AbstractThe aim of this study was to determine whether dietary supplementation with zinc oxide nanoparticales (NP-ZnO) as a substitute for the conventional ZnO affects the intestinal digestibility of selected minerals, growth performance and meat quality in turkeys. The replacement of ZnO with NP-ZnO had no effect on the intestinal digestibility of Zn, Cu, Fe and Ca, whereas the lowest dose of supplemental Zn reduced Zn digestibility. The applied inclusion levels and sources of Zn had no effect on the growth performance (except the feed intake) of turkeys, including liveability. No differences in the relative weights of the heart, spleen and bursa of Fabricius (except the liver), or the weights of the femur and tibia were found between the dietary treatments. Neither the dose nor the source of supplemental Zn influenced carcass dressing percentage or the share of breast, thigh and drumstick muscles in the carcass. In comparison with the highest and moderate doses of Zn, the lowest inclusion level of Zn contributed to increased yellowness of breast meat (P=0.005). The analyzed doses and sources of supplemental Zn exerted varied effects on the redox status of fresh and frozen breast meat. In conclusion, the growth performance of turkeys, carcass yield and composition as well as the redox status of fresh and frozen breast meat were generally similar, regardless of the dietary source and level of Zn. The beneficial effect of Zn addition at 100 mg/kg was improved Zn and Ca digestibility, and increased redness of breast meat.

Effect of Palm Kernel Protein on Growth Performance and Meat Quality of Broiler Chickens

2020 ◽  
Vol 17 (1) ◽  
pp. 41-47
Author(s):  
Nur Shahirah SHAHİDAN ◽  
Teck LOH ◽  
Mohamed ALSHELMANİ ◽  
Chong HAU ◽  
Fu LEE ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Palm Kernel ◽  
Kernel Protein

Desirable effects of dietary 4-O-methyl-glucuronoarabinoxylan from the Echinacea plant on growth performance, thigh meat quality and development of small intestine in female Partridge-Shank broilers

2020 ◽  
Vol 60 (2) ◽  
pp. 288
Author(s):  
Qing-Chang Ren ◽  
Jing-Jing Xuan ◽  
Chuan-Yan Che ◽  
Xin-Chao Yan ◽  
Zhong-Ze Hu
Keyword(s):  
Small Intestine ◽  
Growth Performance ◽  
Meat Quality ◽  
Dietary Supplementation ◽  
Bodyweight Gain ◽  
Lower Percentage ◽  
Feed Ratio ◽  
Muscle Ph ◽  
Access To Water

In this trial we aimed to assess the effects of dietary supplementation of 4-O-methyl-glucuronoarabinoxylan (4OMG) on growth performance, thigh meat quality and small intestine development of female Partridge-Shank broilers. A total of 240 1-day-old female Partridge-Shank broilers were randomly distributed to four groups with three replicates of 20 within each group. Groups received either 0, 15, 20 or 25 g 4OMG/kg DM of diet. During the whole experiment of 60 days, broilers had ad libitum access to water and feed. At pen level, feed intake was recorded daily and broilers were weighed at the start and end of the experiment. For each group, three pens with a total of 20 broilers were randomly selected to determine the thigh meat quality and the small intestine development of broilers. Broilers fed diets with higher 4OMG had greater final liveweight (P = 0.004), daily bodyweight gain (P = 0.004) and gain-to-feed ratio (P < 0.001), muscle pH values (P = 0.031) and redness (P = 0.001), duodenal weight index (P = 0.042), jejunal (P = 0.043) and ileal length (P = 0.049), duodenal (P < 0.001) and ileal villus height (P = 0.008), but lower percentage of dead birds (P < 0.001), drip loss (P = 0.042) and shear force value (P = 0.043) of the thigh muscles. These results indicate that increasing dietary supplementation of 4OMG may improve growth performance and meat quality of female Partridge-Shank broilers through better development of small intestine.

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.

scholarly journals Effect of feeding histidine and β-alanine on carnosine concentration, growth performance and meat quality of broiler chickens

2021 ◽  
pp. 101393
Author(s):  
J. Lackner ◽  
A. Albrecht ◽  
M. Mittler ◽  
A. Marx ◽  
J. Kreyenschmidt ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Effect Of Feeding
Sign in / Sign up

Export Citation Format

Share Document