scholarly journals EFFECT OF FEED WITHDRAWAL AND ADDING DRIED BAKERY YEAST IN THE DIET ON DRESSING PERCENTAGES AND MEAT CHEMICAL COMPOSITION OF BROILERS

2009 ◽  
Vol 33 (2) ◽  
Author(s):  
Shahrazad M. Al-Shadeedi
Keyword(s):  
Body Weight ◽  
Chemical Composition ◽  
Broiler Chickens ◽  
Carcass Weight ◽  
Feed Withdrawal ◽  
Live Body Weight ◽  
Dressing Percentage ◽  
Bakery Yeast

This study has been conducted to study the effect of feed withdrawal (8 hours after slaughter) andadding dried bakery yeast on dressing percentage and meat chemical 45 marketed broiler chickens at 8weeks of age .The birds randomly distributed into three treatments (5 birds ) and each treatment tothree replicates (5 birds per replicate ) which were: un-treated control (T1) , broiler chickens subjectedto feed withdrawal 8 hrs. before slautered (T2) , broiler chickens fed a diet contained 1% of driedbakery yeast three days before subjected to feed withdrawal 8 hrs. before slaughtered (T3) . The dataobtained revealed the following :-Adding dried bakery yeast three days before subjected to feed withdrawal 8 hrs. beforeslaughtered (T3) significantly (p<0.01) decreased live body weight in the same time increased (p<0.01)carcass weight , dressing percentage with or without gibletts and gibletts percentage , also T3significantly (p<0.01) increased protein and decreased lipid and cholesterol of breast and legs meatcompaired with Feed withdrawal (T2) which significantly (p<0.01) predominent compaired with T1 .

scholarly journals Effect of coriander (Coriandrum sativum L.) seed powder as feed additives on performance and some blood parameters of broiler chickens

2020 ◽  
Vol 10 (2) ◽  
Author(s):  
Mona M. Khubeiz ◽  
Abdelfettah M. Shirif
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Broiler Chickens ◽  
Feed Additives ◽  
Coriandrum Sativum ◽  
Heart Weight ◽  
Blood Profile ◽  
Live Body Weight ◽  
Dressing Percentage ◽  
Coriander Seed

Background: Modern intensive poultry production has achieved phenomenal improvement in order to produce high quality chickens by the removal of antibiotics as growth promoters from poultry diets. Instead, numerous additives, such as probiotics, prebiotics, organic acids, enzymes, and phytogenics, are extensively used in poultry feed. Aim: This study was conducted to investigate the effect of different levels of coriander (Coriandrum sativum) seed powder as a growth promoter on feed intake (FI), live body weight, weight gain, feed conversion ratio, carcass yield, and blood profile in broiler chickens. Method: A total of 240 (Ross 308) one-day-old broiler chicks of mixed sexes were allocated randomly into four treatment groups, with 60 chicks per group. Each treatment group had three replicates (20 chicks per replicate), according to a completely randomized design for 45 days. The chicks were fed diets containing 0% (T1) as control, 1.5% (T2), 2.5% (T3), and 3.5% (T4) of coriander seed powder. The FI, live body weight, and weight gain  were monitored and measured on a weekly basis. Blood samples were collected on day 45 of the trial for the determination of the percentage of white blood cells and to assess the blood profile. Results: It was revealed that the growth performance was not significantly affected (p > 0.05). However, the dressing percentage without the skin was significantly increased (p < 0.05) at level 1.5%, while the heart weight was significantly augmented (p < 0.05) at 2.5%, when compared to the control group. Furthermore, the serum triglyceride was significantly reduced (p < 0.05) at 1.5%, while the high-density lipoprotein was significantly increased (p < 0.001) at level 1.5% when compared with the control and 3.5% groups. Moreover, the glutamic oxaloacetate transaminase and glutamate pyruvate transaminase were significantly increased at 3.5% when compared with the control and 1.5% groups, with p < 0.01 and p < 0.05, respectively. The basophil and eosinophil cells count were significantly increased at 2.5% (p < 0.05 and p < 0.01), respectively, while the lymphocyte cell was significantly increased at 1.5% (p < 0.01). Nevertheless, the heterophil cell and H/L were significantly reduced at 1.5% (p < 0.05). Conclusion: Based on the results of this study, the inclusion of coriander seed powder at 1.5% had a positive impact on the dressing percentage  without skin, biochemical blood profile, and immune response. Keywords: Blood parameter, Broiler chicken, Coriander, Performance.

scholarly journals Effect of Feed Restriction on Performance, Carcass Composition and Physicochemical Properties of the M. Pectoralis Superficialis of Broiler Chickens

2015 ◽  
Vol 15 (4) ◽  
pp. 1019-1029 ◽  
Author(s):  
Katarzyna Połtowicz ◽  
Joanna Nowak ◽  
Dorota Wojtysiak
Keyword(s):  
Body Weight ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Carcass Composition ◽  
Feed Restriction ◽  
Restricted Feeding ◽  
Ad Libitum ◽  
Dressing Percentage

Abstract The aim of this study was to evaluate the effect of feed restriction on carcass composition, breast meat quality and microstructure of the m. pectoralis superficialis of broiler chickens. A total of 315 day-old female broilers (Ross 308) were randomly assigned to 3 groups of 105 birds each in 3 pen replicates. They were fed ad libitum as the control (I), and restricted for 6 h/day (from 08:00 to 14:00 h) as group II (3 and 4 weeks of age) and group III from 4 to 5 weeks of age. On day 42 of growth, 6 broilers with average body weight were chosen from each group for slaughter to analyse dressing percentage, carcass quality, physicochemical properties of breast muscles, including pH, colour (CIE L*a*b*), expressible juice, drip loss, thawing loss, cooking loss, Warner-Bratzler shear force, texture (TPA) and chemical composition, as well as histochemical profile of the m. pectoralis superficialis. Temporary feed restriction did not significantly alter the final body weight, dressing percentage and the proportion of breast and leg muscles, but increased the proportion of abdominal fat. No differences were found in the microstructure of the m. pectoralis superficialis of restricted and ad libitum fed chickens. Restricted feeding had an effect on water holding capacity and tenderness of breast muscles, and a non-significant effect on texture parameters and chemical composition. Restricted feeding of chickens changed their meat quality to a greater extent when applied from 3 to 4 weeks compared to analogous procedures introduced from 4 to 5 weeks of age.

scholarly journals Research Regarding the Quality of Lambs Carcass Resulted from Tsigaia Purebred Compared with Hybrids of Tsigaia Ewes Crossed with Blanc du Massif Central Rams

2017 ◽  
Vol 74 (1) ◽  
pp. 7
Author(s):  
Mihai Marian BORZAN ◽  
Dana PUSTA ◽  
Liviu BOGDAN ◽  
Alexandra TABARAN ◽  
Attila MATE ◽  
...  
Keyword(s):  
Body Weight ◽  
Chemical Composition ◽  
Massif Central ◽  
Live Body Weight ◽  
Almost All ◽  
Qualitative Characteristics

Abstract: The research aims to compare some qualitative characteristics of purebred Tsigaia lambs and Tsigaia crossed with Blanc du Massif Central lambs. The criteria assessed were: chemical composition of purebred and Tsigaia crossed meat, the live body weight, the slaughtering performance, the weight of different carcass cut. For almost all criteria chosen the crossed individuals registered better results.

scholarly journals Feeding microparticle protein diet combined with Lactobacillus sp. on existence of intestinal bacteria and growth of broiler chickens

2018 ◽  
Vol 43 (3) ◽  
pp. 265 ◽  
Author(s):  
M. A. Cholis ◽  
N. Suthama ◽  
B. Sukamto
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Digestive Tract ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Dietary Treatment ◽  
Protein Diet ◽  
Carcass Weight ◽  
Intact Protein ◽  
Daily Body Weight

The objective of the study was to evaluate feeding effect of microparticle protein derived from soybean meal and fish meal combined with Lactobacillus sp. at 1.2 mL on physiological condition of digestive tract and productivity of broiler. Total of 192 broiler, with initial body weight was 481.0 ± 67.2 g, given dietary treatment starting on day 21 until day 42. The experiment was assigned in a completely randomized design with 8 treatments and 4 replications. Dietary treatment were 21% intact protein (T0), 18% intact protein (T1), 21% microparticle protein (T2), 18% microparticle protein (T3), T0+Lactobacillus sp.1.2 mL (T4), T1+Lactobacillus sp.1.2 mL (T5), T2+Lactobacillus sp.1.2 mL (T6), T3+Lactobacillus sp.1.2 mL (T7). Parameters measured were total ileal lactic acid bacteria (LAB), Coliform and pH, rate of passage, daily body weight gain (DWG) and also carcass weight. Data were subjected to analysis of variance and followed by Duncan multiple range test (P<0.05). Experimental results showed that microparticle protein diet added with Lactobacillus sp. (P<0.05) increased total LAB and DWG, but decreased Coliform population, and slowed down the rate of passage. However, carcass weight was not significantly affected by treatments. Feeding microparticle protein (18%) with addition of Lactobacillus sp. (1.2 mL) can improve to be better condition of digestive tract based on higher LAB and lower Coliform populations, and increase daily body weight gain with the same carcass weight. 

scholarly journals Effect of dietary protease supplementation and sex on dressing percentage and body conformation in broilers

2016 ◽  
Vol 32 (2) ◽  
pp. 185-193 ◽  
Author(s):  
Vladimir Doskovic ◽  
Snezana Bogosavljevic-Boskovic ◽  
Milos Lukic ◽  
Zdenka Skrbic ◽  
Simeon Rakonjac ◽  
...  
Keyword(s):  
Body Weight ◽  
Protein Content ◽  
Soybean Meal ◽  
Broiler Chickens ◽  
Research Results ◽  
Fast Growing ◽  
Body Conformation ◽  
Broiler Diet ◽  
Carcass Conformation ◽  
Dressing Percentage

This paper presents research results on the effect of protease on the dressing percentage of conventionally dressed carcass and body conformation in broiler chickens. Broiler diet was supplemented with 0.2% protease (group E-I) and 0.3% protease (group E-II), and protein content in the feed was reduced by 4% (E-I) and 6% (E-II) through a decrease in soybean meal content. Fast-growing Cobb 500 broilers were used for a 63-day fattening trial. Body conformation measurement included absolute carcass conformation measures (metatarsus length, keel length, breast depth, breast angle, thigh girth) and relative body conformation measures - conformation indices (body weight/metatarsus length, body weight/keel length, body weight/breast depth, body weight/thigh girth). Results showed a significant effect of sex on the dressing percentage of conventionally dressed carcass and all body conformation measures, whereas diet had a significant effect on the dressing percentage of conventionally dressed carcass and breast angle values.

scholarly journals Effect of Lactococcus lactis vs. Lactobacillus spp. bacteria on chicken body weight, mortality, feed conversion and carcass quality

2012 ◽  
Vol 12 (4) ◽  
pp. 549-559 ◽  
Author(s):  
Franciszek Brzóska ◽  
Bogdan Śliwiński ◽  
Krystyna Stecka
Keyword(s):  
Body Weight ◽  
Lactobacillus Plantarum ◽  
Lactococcus Lactis ◽  
Broiler Chickens ◽  
Liver Weight ◽  
Blood Parameters ◽  
Feed Consumption ◽  
Control Group ◽  
Feed Conversion ◽  
Dressing Percentage

AbstractA total of 608 Ross 308 broiler chickens of both sexes were studied to determine the effect of Lactococcus lactis 847 bacteria compared to probiotic bacteria Lactobacillus delbruecki 838 and Lactobacillus plantarum 837 on body weight, feed consumption and conversion, mortality, dressing percentage, postmortem carcass traits, composition of breast muscle tissue, and blood plasma traits. Feeding diets with bacteria to chickens did not increase body weight at 42 days of age or improve feed conversion compared to control chickens. It significantly reduced chicken mortality compared to the control group, from 3.3% to 1.4% (P<0.01). No significant differences were found in feed consumption and conversion. There were no significant differences in the weight of carcasses and their parts. Lactococcus lactis 847 and Lactobacillus plantarum 837 bacteria significantly increased dressing percentage (P<0.05). Lactococcus lactis 847 significantly increased liver weight (P<0.05). No significant differences were observed in carcass fatness, and in the dry matter, protein and fat content of breast muscles. Feeding diet with Lactobacillus plantarum 837 to chickens significantly decreased plasma triglyceride levels, and feeding diet with Lactobacillus delbruecki 838 and Lactobacillus plantarum 837 significantly decreased the level of high-density cholesterol (P<0.05). In conclusion, Lactococcus lactis 847 bacteria in diet significantly reduce losses due to digestive disorders while having no effect on the quantity and proportion of saleable cuts in the carcass, the composition of breast muscles and basic blood parameters.

scholarly journals Slaughter Results, Meat Chemical Composition and pH of Aberdinangus, Hereford and Limousin bulls

2021 ◽  
Vol 46 (341) ◽  
pp. 13-21
Author(s):  
Inga Muizniece ◽  
Daina Kairisa
Keyword(s):  
Chemical Composition ◽  
Correlation Analysis ◽  
Iron Content ◽  
Ph Value ◽  
Sustainable Use ◽  
Carcass Weight ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Dressing Percentage ◽  
Total Fat

Abstract Beef production must combine the interests of both producers and consumers, taking into account the sustainable use of environmental resources. The aim of the study was to analyze and compare the slaughter results, meet chemical composition and pH value of three beef breeds – Aberdinangus (AA), Hereford (HF) and Limousin (LI) bulls. The bulls were fattened on Latvian and Lithuanian farms, mainly using grass forage. The breed and age of bulls before slaughter significantly affected all slaughter results, except for fat class. From the meat chemical composition traits, the bull breed and age before slaughter had a significant effect only on the protein content. LI bulls showed the highest carcass weight 301.1±6.8 kg (p<0.05), dressing percentage 58.2±1.1% (p<0.05) and conformation score 3.56±0.18 points. The best fattened carcasses were obtained from AA bulls - 2.43±0.20 points. Muscle samples of musculus longissimus (M. longissimus) bulls of LI breed showed higher content of moisture (72.0±1.0%), protein (23.0±0.2%), ash (1.1±0.0%) and cholesterol (56.7±6.6 mg 100 g−1). AA breed bulls showed higher total fat (6.6±1.2%) and iron content (13.1±0.6 mg). The highest pH was observed in the meat obtained from AA bulls – 6.0±0.1, LI and HF breed bulls showed pH 5.8±0.0 and 5.8±0.1 respectively. Correlation analysis showed a significant, strong positive correlation between cold carcass weight and dressing percentage for AA and LI bulls, r=0.90 and r=0.88, respectively. For LI breed bulls, a strong positive correlation was also found between the cold carcass weight and the conformation score (r=0.98, p<0.01).

scholarly journals Effects of Music Enrichment on Live Body Weight and Meat Quality Grade of Broiler Chickens

2020 ◽  
Vol 47 (2) ◽  
pp. 69-74
Author(s):  
Jae Cheong Lee ◽  
Sang Hyeok Lee ◽  
Cheorun Jo ◽  
Kyung-Woo Lee
Keyword(s):  
Body Weight ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Live Body Weight ◽  
Quality Grade

scholarly journals ESTIMATION OF BALI CATTLES CARCASS WEIGHT BY USING LIVE BODY WEIGHT

2021 ◽  
Vol 22 (1) ◽  
pp. 49-55
Author(s):  
Tjokorda Sari Nindhia ◽  
Elizabeth Kezi Damayanti ◽  
Putu Sampurna
Keyword(s):  
Body Weight ◽  
T Test ◽  
Carcass Weight ◽  
Live Body Weight

Penelitian ini bertujuan untuk menduga bobot karkas pada sapi bali jantan dan betina dengan menggunakan bobot hidupnya. Hal tersebut dapat membantu peternak dan pembeli sapi untuk menduga bobot karkas menggunakan bobot hidup. Penelitian ini menggunakan sampel yaitu sapi bali sebanyak 20 ekor jantan dan 24 ekor betina yang dipotong di Rumah Potong Hewan Mambal. Pengumpulan data pada penelitian ini dilakukan dengan pengukuran langsung pada bobot hidup dan bobot karkas. Data yang diperoleh dianalisis dengan independent t-test kemudian dianalisis dengan regression metode power. Hasil rata-rata pengukuran dari bobot hidup pada sapi bali jantan yaitu 312,55±13,96 kg sedangkan pada sapi bali betina 247,00±6,96 kg serta hasil rata-rata pengukuran dari bobot karkas pada sapi bali jantan yaitu 171,87±9,14 kg sedangkan pada sapi bali betina 115,43±3,33 kg. Nilai koefisien korelasi yang didapatkan untuk sapi bali jantan adalah 0,954 sedangkan untuk sapi bali betina adalah 0,918. Nilai koefisien deteminasi (R2) yang didapatkan untuk sapi bali jantan adalah 0,91 dan untuk sapi bali betina adalah 0,843 sehingga ditemukan hubungan yang erat antara bobot hidup dengan bobot karkas pada sapi bali jantan dan betina. Hasil penelitian ini menunjukkan bobot karkas dapat diduga menggunakan bobot hidup dengan persamaan pada sapi bali jantan yaitu Y= 0,208X1,168 sedangkan pada sapi bali betina yaitu Y=0,763X0,911. Berdasarkan hasil analisis regression metode power dapat diketahui laju perubahan bobot karkas pada sapi bali jantan lebih tinggi daripada sapi bali betina sehingga sapi bali jantan lebih ekonomis untuk dipotong karena memiliki persentase bobot karkas lebih tinggi daripada sapi bali betina.

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