scholarly journals Effect of dietary protein level and length of fattening period on dressing percentage and carcass conformation in broiler chickens

2017 ◽  
Vol 33 (2) ◽  
pp. 211-219
Author(s):  
Vladimir Doskovic ◽  
Snezana Bogosavljevic-Boskovic ◽  
Zdenka Skrbic ◽  
Radojica Djokovic ◽  
Simeon Rakonjac ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Crude Protein ◽  
Dietary Treatment ◽  
Abdominal Fat ◽  
Fat Percentage ◽  
Protein Levels ◽  
Dietary Protein Level ◽  
Dressing Percentage ◽  
Fattening Period ◽  
Almost All

This study analyses the effect of different protein levels in broiler feeds (supplemented with protease) and different lengths of fattening period on some parameters related to dressed carcass quality. Medium-growing Master Gris broiler chickens were used in a fattening trial lasting 63 days. At slaughter, dressing percentages and abdominal fat percentages were determined based on traditionally dressed carcass weights and abdominal fat weights of broilers at 49 and 63 days, and conformation indices were calculated based on absolute conformation measurements. Results showed that dietary treatment had an effect only on one relative conformation measurement - body weight/shank length in chickens at 49 days, as control broilers had higher values of this index compared to chickens receiving feeds containing reduced levels of crude protein and protease supplementation (0.2% or 0.3%). Length of fattening period affected almost all studied parameters, except breast angle, dressing percentage of traditionally dressed carcass and abdominal fat percentage.

scholarly journals Effect of protease and duration of fattening period on dressing percentage of broiler chickens

2016 ◽  
Vol 32 (4) ◽  
pp. 353-360 ◽  
Author(s):  
Vladimir Doskovic ◽  
Snezana Bogosavljevic-Boskovic ◽  
Lidija Peric ◽  
Milos Lukic ◽  
Zdenka Skrbic ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Crude Protein ◽  
Carcass Weight ◽  
Fast Growing ◽  
Protein Levels ◽  
Protease Enzyme ◽  
Body Weights ◽  
Dressing Percentage ◽  
Fattening Period ◽  
Experimental Group

This study evaluates the effect of different crude protein levels in broiler diets supplemented with 0.2% and 0.3% protease enzyme (Ronozyme Pro Act) on dressed carcass weight and dressing percentage during two fattening periods (49 and 63 days). The fast-growing strain Cobb 500 was used. At the end of the fattening trial i.e. at 49 and 63 days, 10 male and 10 female birds were randomly sacrificed from each experimental group to determine body weights and conventionally dressed, ready-to-roast and ready-to-grill carcass weights. The data obtained were used to calculate the dressing percentages of the differently dressed carcasses. Results indicated that carcass weights and dressing percentages were not affected by diet (P>0.05), but also showed that the increase in the length of the fattening period by two weeks (from 7 to 9 weeks) led to increased carcass weights, while dressing percentages decreased (P<0.05).

scholarly journals EFEKAT ENZIMA PROTEAZE NA PRINOS I UDEO JESTIVIH PRATEĆIH PROIZVODA KLANJA PILIĆA HIBRIDA MASTER GRIS

2021 ◽  
Author(s):  
Vladimir Doskovic ◽  
◽  
Snežana Bogosavljevic-Boškovic ◽  
Zdenka Škrbic ◽  
Miloš Lukic ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Crude Protein ◽  
Live Weight ◽  
Abdominal Fat ◽  
Control Group ◽  
Protein Levels ◽  
Percentage Yield ◽  
Almost All ◽  
Experimental Group ◽  
By Products

The effect of supplemental protease (Ronozyme ProAct) in broiler diet on the weights and percentage yields of slaughter by-products of male and female medium-growing Master Gris broiler chickens was analysed. Fattening period lasted for 63 days. Broilers were assigned to 3 experimental groups, each consisting of 100 birds. Experimental groups differed in protease levels used in their diets: control broilers (C) received complete feeds (starter, grower and finisher) without supplemental protease; chickens in the experimental group E-I were given a diet containing 0.2% protease and crude protein levels reduced by 4% compared with the control group, whereas experimental E-II broilers were fed a diet supplemented with 0.3% protease and containing crude protein levels reduced by 6% compared with C birds. The analysis of the results showed that feeding treatments had a very small effect on the weights and proportion yields of edible by-products (with difference only in the percentage yield of liver relative to live weight between C and E-I broilers, P<0.05), whereas sex was found to affect almost all slaughter by-products (except abdominal fat weight and the percentage yield of gizzard relative to live weight, P>0.05).

scholarly journals Carry-over effects of dietary crude protein and triiodothyronine (T3) inbroiler chickens

1996 ◽  
Vol 75 (4) ◽  
pp. 573-581 ◽  
Author(s):  
R. W Rosebrough ◽  
A. D Mitchell ◽  
J. P Mcmurtry
Keyword(s):  
Body Weight ◽  
Dietary Protein ◽  
Broiler Chickens ◽  
Crude Protein ◽  
Relative Size ◽  
Dietary Treatment ◽  
Acetate Incorporation ◽  
Final Body Weight ◽  
Protein Levels

Indian River male broiler chickens growing from 7 to 30 d of age were fed on diets containing crude protein levels ranging from 120 to 3041 g/kg plus 0 or 1 mg triiodothyronine (T3/)kg diet. The purpose of this study was to examine the effects of these treatments on lipogenesis after a common diet was fed (180 g crude protein/kg diet from 30 to 56 d of age). Dietary treatment groups were sampled at 30 and 56 d. In vitro lipogenesis was determined by incubating liver explants for 2h at 37°in Hanks' salts containing 25 mM-HEPES and 10 mM-[2-14C]acetate and then measuring acetate incorporation into total lipid. Growth and feedconsumption from 7 to 30 d increased (P<0·01) as dietary protein increased from 120 to 210 g/kg diet. Both measurements decreased as crude protein increased from 210 to 300 g/kg diet.T, decreased (P<0·01) growth and feed intake during this period.Low-protein (<180 g/kg) diets increased (P<0·05) and T3, decreased lipogenesis in 30-d-old chickens. Although birds given T3from 7 to 30 dgrew at the greatest rate from 30 to 56 d of age, the final body weight was still less than controls.In vifm lipogenesis at 56 d of age was not affected by either of the two dietary treatments. In contrast, the relative size of the abdominal fat pad (g/kg body weight) at 56 d was decreased by feeding T3from 7 to 30 d. Any changes in metabolism elicited by either dietary protein levels or hormone treatments may be specific to the particular dosing interval and are not sustained when acommon diet is fed during a repletion period.

scholarly journals Growth and feed utilization of Boer x Kacang crossbred goats offered total mixed rations of different protein and energy levels

2018 ◽  
Vol 22 (4) ◽  
pp. 188
Author(s):  
Simon P. Ginting ◽  
Kiston Simanihuruk ◽  
Antonius Antonius ◽  
Andi Tarigan
Keyword(s):  
Energy Density ◽  
Protein Level ◽  
Crude Protein ◽  
Energy Levels ◽  
Dietary Treatment ◽  
Feed Utilization ◽  
Metabolizable Energy ◽  
High Rate ◽  
Protein Levels ◽  
Crude Protein Level

The aim of this study was to evaluate the growth of and feed utilization by Boer x Kacang crosses goats fed on total mixed ration differing in protein and energy levels. Four total mixed rations combination were formulated to contain 16 and 18% crude protein and 2650 and 2850 Kcal ME/ kg DM (dried matter) energy density. Twenty-eight male Boer x Kacang crosses goats (14.5 ± 1.14 kg) and of age ranging from 4 to 5 months were randomly allocated to one of these four TMRs (total mixed rations) (7 animals/TMR). The effects of dietary treatment were assessed using the general linear model and significance of the diet effects was detected using Duncan’s multiple range test. Dry matter intake increased as metabolizable energy density of diet increased from 2650 to 2850 Kcal/kg DM, but it is not affected by increasing crude protein level from 16 to 18%. The average daily gains were not improved (P&gt;0.05) as the crude protein levels and metabolizable energy density of diet increased. Crude protein levels and ME density did not affect (P&gt;0.05) the DM, OM and energy digestibility, but NDF digestibility was affected by the ME density of diets (P&lt;0.05). Daily N intakes were greater (P&lt;0.0%) in goats received diets higher in the crude protein and metabolizable energy levels. At this high rate of feed intake this type of goats are able to gain optimally when offered feed with crude protein level of 16% and metabolizable energy density of 2850 Kcal/kg DM.

CUTTING WEIGHT, PERCENTAGE OF CARCASS AND FAT ABDOMINAL CHICKEN BROILER fed WITH ADDITIONAL RED SWEET POTATOES POWDER (IPOMOEA BATATAS)

2021 ◽  
Vol 2 (3) ◽  
Author(s):  
Wa Ode Nurullah Leesi ◽  
Harapin Hafid ◽  
Muhammad Amrullah Pagala
Keyword(s):  
Sweet Potato ◽  
Broiler Chickens ◽  
Ipomoea Batatas ◽  
Abdominal Fat ◽  
Potato Flour ◽  
Fat Percentage ◽  
Sweet Potatoes ◽  
Slaughter Weight ◽  
Weight Percentage ◽  
Sweet Potato Flour

This study aims to examine the use of red sweet potato flour on slaughter weight, percentage ofcarcass weight, and abdominal fat in broiler chickens fed with additional red sweet potato flour. Thisresearch was conducted in April to May 2018, housed in the Raman Farm enclosure in Puosu JayaVillage, Konda District, Konawe Selatan District. The material used in this study was 64 weeks oldbroiler chickens, with 64 feed ingredients used as the concentrate, corn, bean, sweet potato flour. Theequipment used is a scale, a colony cage made of wire-lined wood and measuring 4m x 2m, which isdivided into 16 plots and the size of each 1m x 0.5m, each story is equipped with a place to eat anddrink, 40-watt incandescent balloons and other equipment such as scales, ovens, sample grinders,basins, plastics, and gutters. This study was designed using a complete randomized design with fourtreatments and four replications, where four treatments consisted of P0 basic ration (Control), P1:basic ration containing 4% red sweet potato flour, P2: elemental percentage containing 6% red sweetpotato flour, and P3: basic ration contains 8% red sweet potato flour. The variables observed in thisstudy were cutting weight, carcass percentage, and abdominal fat of broiler chickens. The results ofthe analysis of variance showed that the administration of red sweet potato flour had no significanteffect (P> 0.05) on the percentage of carcasses and abdominal fat of broiler chickens. Broiler chickenaged five weeks. It was concluded that the provision of different red sweet potato flour in feed did notsignificantly affect slaughter weight, carcass weight, and abdominal fat percentage of broilerchickens. There is a tendency for broilers fed with red sweet potato flour to have heavier cut weights,a more significant portion of carcasses and an increase in the level of red yam, and a decrease inabdominal fat content and the addition of red yam levels in the feed.

scholarly journals Protein and energy relationships in the broiler chicken

1993 ◽  
Vol 70 (3) ◽  
pp. 667-678 ◽  
Author(s):  
R. W. Rosebrough ◽  
J. P. McMurtry
Keyword(s):  
Broiler Chickens ◽  
Crude Protein ◽  
Broiler Chicken ◽  
Protein Levels ◽  
Low Protein ◽  
Dietary Crude Protein ◽  
Energy Relationships ◽  
Limiting Amino Acid ◽  
Limiting Amino Acids

Male broiler chickens growing from 7 to 35d were fed on a diet containing 150g crude protein (N × 6·25)/kg diet supplemented with lysine to equal that in diets containing 166, 183 and 200g crude protein/kg diet (Expt 1). A second group of male broiler chickens growing over the same period were fed on a diet containing 120g crude protein/kg supplemented with lysine, arginine, tryptophan, threonine and isoleucine equal to that in diets containing 144, 172 and 200g crude protein/kg diet (Expt 2). Growth was improved by lysine supplementation but not to the level attained by feeding 200g crude protein/kg (Expt 1). Lysine, arginine, tryptophan, threonine and isoleucine supplementation of a low-protein diet also improved growth, but growth again fell short of that attained by feeding a diet containing 200g crude protein/kg. Plasma insulin-like growth factor-1 and thyroxine concentrations increased and triiodothyronine decreased as the crude protein level increased from 150 to 200g/kg diet. Supplemental lysine did not affect plasma levels of these hormones. Although dietary crude protein levels noticeably changed rates ofin vitrolipogenesis, changing either the level of a single limiting amino acid or the levels of several limiting amino acids did not change lipogenesis.

scholarly journals The effect of using fermented lime (Citrus aurantifolia) waste powder (FLWP) on performance, lymphoid organs, and heterophil/lymphocyte ratio of broiler chickens

2021 ◽  
Vol 19 (3) ◽  
pp. 282
Author(s):  
Hanna Dzawish Shihah ◽  
Dwi Sunarti ◽  
Sri Sumarsih
Keyword(s):  
Broiler Chickens ◽  
Relative Weight ◽  
Abdominal Fat ◽  
Bursa Of Fabricius ◽  
Feed Additive ◽  
Feed Conversion ◽  
Fat Percentage ◽  
Final Body Weight ◽  
Lymphocyte Ratio ◽  
Body Resistance

<p class="MDPI17abstract"><strong>Objective: </strong>Fermented lime waste had potential value as a feed additive for poultry. A Bioactive compound such as citric acid in the lime waste can improve the broiler's performance and body resistance. The study purposed to evaluate the effect of using fermented lime waste powder (FLWP) on the broiler performance and body resistance.</p><p class="MDPI17abstract"><strong>Methods: </strong>This study used 200 female broiler strain Lohman MB 202 chickens. The research design used a completely randomized design with four treatment levels of fermented lime waste powder (FLWP) by 0%, 1%, 2%, and 3% in every rations with each treatment replicated five times. The parameters observed are feed intake, feed conversion ratio, final body weight, carcass percentage, abdominal fat percentage, lymphoid organ’s relative weight, and heterophil/lymphocyte ratio (H/L ratio). Data were calculated using the analysis of variance and difference test with Duncan's Multiple Range Test. Data analysis were calculated using the SPSS 19.0 program.<strong></strong></p><p class="MDPI17abstract"><strong>Results: </strong>The result indicates that using FLWP improved (p&lt;0.05) the relative weight of the <em>Bursa of fabricius</em> at T0 0.11%; T1 0.19%; T2 0.19%; and T3 0.17% respectively. The FLWP at 3% level improved (p&lt;0.05) broiler chicken’s H/L ratio. Performance, carcass percentage, and abdominal fat percentage among treatments were not influenced (p&gt;0.05) by FLWP addition.<strong></strong></p><p><strong>Conclusions: </strong>It concludes that adding FLWP at a 1% level increases the relative weight of <em>Bursa of fabricius</em> (0.17-0.19%) without depressed performance of broiler.</p>

scholarly journals The effect of dietary forages in tetanus hyper immunized equine serum production

2021 ◽  
Vol 905 (1) ◽  
pp. 012096
Author(s):  
D A Mahari ◽  
R I Anwar ◽  
H M Ikhsan ◽  
F B I Lupitasari ◽  
Herdis ◽  
...  
Keyword(s):  
Antibody Titer ◽  
Crude Protein ◽  
Serum Antibody ◽  
Dietary Treatment ◽  
Nutritional Requirement ◽  
Elephant Grass ◽  
Protein Levels ◽  
Ethical Approval ◽  
Kikuyu Grass ◽  
Production Period

Abstract The determination of local forage in meeting the nutritional requirement of horses and its effect on the antibody titer production is necessary to be conducted. The aim of the study was to determine the effect of dietary forage to antibody titer production of Anti-Tetanus Serum. All procedures performed in this study were approved by the Institutional Animal Care and Use Committee (Ethical Approval No: 01/IACUC-BF/VI/20). A total of 12 Sandalwood horses aged 3-6 years with body weight ranged at 268.4 - 365.8 kg were used in this study. Horses were randomly assigned into four dietary treatment groups for ten weeks (100% Elephant grass; 100% Mott elephant grass; 67% Elephant grass: 33% Kikuyu grass; and 67% Mott elephant grass: 33% Kikuyu grass) which allowed 7.24; 11.45; 11.12; 12.62% crude protein respectively. The titer measurement was carried out once a week during the production period. The data obtained was analyzed using correlation analysis. The results showed that 100% Mott elephant grass group produced the highest titer but the correlation between crude protein levels in the diets and titer were weak (0.44). Thus, it can be concluded that the high protein forage given has no potential to increase the serum antibody titer.

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