Breast meat yield, muscle linear measurements and meat composition of turkeys fed 2 diet containing wheat or sorghum as sole cereal source

2020 ◽  
Vol 40 (2) ◽  
pp. 30-38
Author(s):  
A. O. Oso ◽  
R. A. Sobayo ◽  
K. A. Sanwo ◽  
O. A Lala ◽  
W. A. Olayemi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Control Diet ◽  
Live Weight ◽  
Linear Measurement ◽  
Breast Meat ◽  
Linear Measurements ◽  
Meat Yield ◽  
Mineral Profile ◽  
Breast Meat Yield ◽  
Gross Energy

Breast meat yield, chemical composition, mineral profile and linear measurement of the resultant breast meat Supracoracoides and Pectoralis thoracicus of one hundred and eighty (28 days old BUT) male turkeys fed diet containing wheat or sorghum as sole cereal source were studied. One  hundred and eighty 28-days old male turkeys (British United Turkeys, BUT) were randomly allotted into 18 pens with 10 poults housed in each pen (of dimension 3.0× 2.0 m). Three experimental diets were formulated for the starter (29-56 days), grower (57-84) and finisher  phase (85-112 days) such that ground maize (control), wheat or sorghum (light brown coat  variety) was used as the only cereal source. The turkeys were randomly allotted to 18 pens (each housing 10 turkeys) with each pen allocated to one of the experimental diets. Growth response, breast meat yield, chemical composition, mineral profile and linear measurement of the resultant breast meat yield were measured at the end of finishing phase. Turkeys fed with wheat and sorghum had similar dressing percentage values. Turkeys fed with sorghum recorded lower (P<0.05) final live weight (10,002.10 g), weight gain (9084.90 g), feed intake (19,942.67 g), dressed weight (8099.94 g), breast meat yield (2691g) and higher relative BMY (269.05 g/kg LWT) than those fed with wheat. However, turkeys fed with wheat had higher (P<0.05) Supracoccoides weight (672.15 g) and length (26.9 g) than those fed with sorghum which recorded higher relative Supracoccoides weight (58.81 g) than those fed with sole wheat (53.76 19 g). Crude protein, ether extract, ash content, gross energy and mineral content of the BMY were not affected by dietary inclusion of wheat or sorghum as sole cereal source. However, the breast meat of turkeys fed with sorghum had lower (P<0.05) moisture (60.12%), cholesterol (19.05 mg/100g) and LDL (2.01 mg/100g) values than other corresponding values obtained for turkeys fed with wheat or control diet

scholarly journals 41 Estimating the heritability of meat quality traits in turkeys

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 18-19
Author(s):  
Ryley J Vanderhout ◽  
Michelle Yahiro ◽  
Benjamin Wood ◽  
Shai Barbut ◽  
Jeff S Mohr ◽  
...  
Keyword(s):  
Meat Quality ◽  
Shear Force ◽  
Live Weight ◽  
Drip Loss ◽  
Quality Traits ◽  
Breast Meat ◽  
Meat Yield ◽  
Meat Quality Traits ◽  
White Striping ◽  
Breast Meat Yield

Abstract Genetic selection for improved meat quality traits has been successfully implemented in many livestock species. The objective of this study was to estimate the heritability of several meat quality traits to assess their selection potential in turkeys. Pedigree toms (n = 1,033) were processed at a commercial facility and live weight, breast meat yield (as a percentage of live weight), ultimate pH, color (CIELAB values), drip loss, cooking loss, and shear force were recorded on M. pectoralis superficialis (fillet). White striping was also rated on a 1–4 scale. Heritabilities were estimated using univariate animal models in ASReml version 4.1. Hatch week and age at slaughter were included as fixed effects in the mode,l and 32 generations of pedigree records were used. Breast meat yield (h2 = 0.62; SE = 0.090) showed the highest heritability and was higher compared to previous estimates, probably due to the smaller sample size. Live weight (h2 = 0.31; SE = 0.078), ultimate pH (h2 = 0.36; SE = 0.087), lightness (h2 = 0.28; SE = 0.086), redness (h2 = 0.22; SE = 0.075), and white striping score (h2 = 0.27; SE = 0.085) all had moderate heritabilities. The estimate for ultimate pH was similar to previous studies in broilers but was high compared to previous studies in turkeys. Estimates for color were similar to those found in previous studies involving turkeys. Drip loss and cooking loss had similar heritability estimates of 0.13 (SE = 0.071) and 0.10 (SE = 0.064), respectively, which were akin to previous estimates in pork. Shear force (h2 = 0.02; SE = 0.056) was found to have a very low heritability. In conclusion, the heritability estimates provided in this study show great potential for the inclusion of meat quality traits in selection programs of turkeys. This study is part of a larger project working towards the implementation of genomic information in the selection of turkeys for improved meat quality.

scholarly journals Effect of added dietary lysine and methionine above recommended levels, on growth performance, breast meat yield and financial returns in broilers

2019 ◽  
Vol 54 (1) ◽  
pp. 24-37 ◽  
Author(s):  
T. N.N. Nortey ◽  
E. A. Quarshie ◽  
R. Owusu-Bremang ◽  
E. Agyei-Henneh ◽  
N. S. Frempong ◽  
...  
Keyword(s):  
Financial Analysis ◽  
Control Diet ◽  
Financial Returns ◽  
Breast Meat ◽  
Meat Yield ◽  
Feed Cost ◽  
Randomized Design ◽  
Breast Meat Yield ◽  
Completely Randomized Design ◽  
Dietary Treatments

This study investigated the effect of added lysine and methionine above recommended levels in broiler diets, on their growth, breast meat yield and financial returns. A total of 175 one-day-old Cobb 500 chicks were assigned to seven dietary treatments in a completely randomized design. Treatment one (T1) was a control diet formulated to breed specifications. Treatments two (T2) and three (T3) contained 1.2 times recommended levels of Lys and Met respectively. Treatment four (T4) contained Lys and Met at 1.2 times recommended levels. Treatments five (T5) to seven (T7) had similar combinations of Lys and Met as T2 to T4 but their inclusions were 1.4 times recommended levels. On day 43 five birds per treatment were slaughtered for breast meat yield measurements. Broilers on T6 had heavier (P<0.05) breast meat (691.6 g) and tenderloin weights (126.4 g) compared to birds on T1 (491.2 and 93.8 g respectively). The premium on the price of breast meat more than offset the added feed cost of the nutrient dense diets. However, if the finished dressed broilers are to be sold whole and uncut, this trial showed that it is better to feed the birds at the manufacturers recommended levels of Lys and Met. Keywords: Lysine; Methionine; Broilers; Breastmeat; Financial analysis

THE EFFECTS OF DIETARY METHIONINE AND LYSINE ON BROILER CHICKEN PERFORMANCE AND BREAST MEAT YIELD

1990 ◽  
Vol 70 (2) ◽  
pp. 673-678 ◽  
Author(s):  
D. HICKLING ◽  
W. GUENTER ◽  
M. E. JACKSON
Keyword(s):  
Weight Gain ◽  
Key Words ◽  
Feed Efficiency ◽  
Broiler Chicken ◽  
Broiler Chicks ◽  
Breast Meat ◽  
Meat Yield ◽  
Breast Meat Yield

An experiment was conducted with 3840 male Ross × Arbor Acres broiler chicks to test the effects of increasing dietary methionine and lysine on performance and breast meat yield. Supplemental methionine and lysine were fed in a 2 × 4 factorial arrangement in both starter (0–3 wk) and finisher (3–6 wk) diets. Methionine was fed at levels of NRC and 112% NRC. Lysine was fed at levels of NRC and 106% NRC, 112% NRC and 118% NRC. Increasing dietary methionine increased weight gain (P < 0.01), feed efficiency (P < 0.01) from 3 to 6 wk, and breast meat yield (P < 0.01) at 6 wk. Increasing dietary lysine caused a curvilinear response in breast meat yield (P < 0.05). Key words: Broiler, lysine, methionine, breast meat

scholarly journals Growth Performance Meat Yield and Profitability of Broiler Chickens Fed Diets Incorporating Cassava Tuber Meal

2012 ◽  
Vol 5 (1) ◽  
pp. 47-53
Author(s):  
F Sultana ◽  
MA Ali ◽  
I Jahan
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Control Diet ◽  
Live Weight ◽  
Dietary Treatment ◽  
Feed Consumption ◽  
Body Parts ◽  
Trial Period ◽  
Growth Responses ◽  
Meat Yield

A total of sixty, 14-day old broiler chickens (Cobb-500) of either sex were used in this study to assess the effects of processed cassava tuber meals (0, 15, 30, and 45 gkg-1) on growth responses, meat yield, and profitability of boilers; rearing from day 14 to day 33 of ages. The experimental diets were iso-caloric and iso-nitrogenous in nature, and were supplied the broilers ad libitum throughout the trial period. Broilers fed on control diet (i.e. exclusion of CTM) achieved higher (P<0.01) body weight, while the broilers offered diets with the highest amount (45 gkg-1) of CTM had the lowest body weight. Increased (P<0.01) feed intake was observed in the treatments of 21 d and 28 days of age when broilers fed diets with the supplementation of CTM, but no significant differences was found among the dietary treatments in the feed consumption of the broilers during 33 day of age. FCR differed significantly (P<.01) throughout the trial period, broilers fed diets without supplementation of CTM had the superior FCR than the others. Mortality was unaffected by all the dietary treatment groups. Moreover, different body parts (feather, head, neck, wing, viscera) and meat yields (thigh, drumstick, breast, back, giblet, dressing) were not influenced by treatments. Live weights were unaffected by all the dietary groups with/without incorporation of cassava tuber meals (CTM) up to day 21 and day 28 of  ages. Statistically significant (P<0.01) decreased live weight was observed among the treatments in 33-day old birds DOI: http://dx.doi.org/10.3329/jesnr.v5i1.11552 J. Environ. Sci. & Natural Resources, 5(1): 47- 53, 2012  

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