scholarly journals MEAT COLOUR CHARACTERISTICS OF DIFFERENT PRODUCTIVE TYPES DOMESTIC QUAILS

2019 ◽  
Vol 17 (1) ◽  
pp. 42-48 ◽  
Author(s):  
H. Lukanov
Keyword(s):  
Colour Index ◽  
Thigh Muscle ◽  
Dual Purpose ◽  
Male And Female ◽  
B Values ◽  
Leg Muscles ◽  
Main Production ◽  
Meat Colour ◽  
Heavy Group ◽  
Meat Type

The aim of the present study was to investigate the meat colour characteristics, using CIE L*a*b* colour description system, of quails from the two main production types reared in Europe: the intermediate heavy (dual-purpose) and heavy (meat-type). Quails were separated by gender in male and female subgroups, as follows: Am, Af, Dm, Df, Mm and Mf, where A group was dual-purpose and D and M groups were from heavy type. Meat colour characteristics of the breast (M. pectoralis superficialis), tenders (M. pectoralis profundus) and leg muscles (M. Iliotibialis lateralis pars postacetabularis) were evaluated on post mortem hour 24 in CIE L*a*b* colour description system. On the basis of L*, a* and b* values, the chroma (С*), colour index (CI) and meat colour index (MCI) were calculated. The lateral surface of M. p. superficialis was substantially darker in the light all-purpose type than in the heavy group М (р<0.001). The lowest lightness values (L*) were detected on M. p. superficialis facies medialis and the outer surface of M. p. profundus. The highest average meat redness was detected on M. p. superficialis facies medialis and the lowest - in thigh muscles (M. iliotibialis). Average yellowness (b*) of all studied muscles were positive in all groups of quails, with statistically significantly lower values in females vs males. The sex-related analysis showed that indices CI and MCI were considerably lower for both surfaces of M. p. superficialis in subgroup Am than in subgroups Dm and Mm (р<0.001). Similar differences were found out for the thigh muscle (р<0.05).

scholarly journals Еconomic analysis of meat production from two types of Domestic quails

2020 ◽  
Vol 12 (2) ◽  
pp. 148-152
Author(s):  
H. Lukanov ◽  
I. Pavlova
Keyword(s):  
Economic Analysis ◽  
Production Costs ◽  
Meat Production ◽  
Dual Purpose ◽  
Japanese Quails ◽  
Main Production ◽  
Group 3 ◽  
Group 2 ◽  
Meat Type ◽  
Group 1

Abstract. There are two types of Japanese quails, reared in Europe – dual-purpose and meat. The aim of the present study was to made an economic analysis of fattening quails from the dual-purpose and heavy production types. Three groups were formed – group 1 (dual-purpose), groups 2 and 3 (heavy type), reared in cages. After quails sexing on the 16th day of age, there were formed six subgroups: 1m, 1f, 2m, 2f, 3m and 3f. Fattening period lasted until 35 days of age. For revenues calculation produced meat and edible offal data per m2, were used. Costs calculation include consumed feed for the period, day-old quail, and other costs. The main production costs were associated with feed and day-old quails: from 80.3 and 82.6% of all costs in the studied groups. The anticipated revenues from produce in group 2 were 10 EUR/m2 higher than those in group 1, and for group 3 – 10.21 EUR/m2 higher than group А. The results indicate that meat type quails fattening is the most economically efficient in quail meat production. Producing quail edible offal is still not developed but could be beneficial for efficiency of quail fattening small farms.

Gain in thigh muscle strength after balance training in male and female judokas

2002 ◽  
Vol 10 (4) ◽  
pp. 199-202 ◽  
Author(s):  
Hans-Christian Heitkamp ◽  
Frank Mayer ◽  
Mark Fleck ◽  
Thomas Horstmann
Keyword(s):  
Muscle Strength ◽  
Balance Training ◽  
Thigh Muscle ◽  
Male And Female

scholarly journals Spinal Motor and Sensory Neurons Are Androgen Targets in an Acrobatic Bird

Endocrinology ◽  
2012 ◽  
Vol 153 (8) ◽  
pp. 3780-3791 ◽  
Author(s):  
Matthew J. Fuxjager ◽  
J. Douglas Schultz ◽  
Julia Barske ◽  
Ni Y. Feng ◽  
Leonida Fusani ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Sensory Neurons ◽  
Courtship Behavior ◽  
Estrogen Receptor Α ◽  
Tropical Species ◽  
Spinal Neurons ◽  
Male And Female ◽  
Leg Muscles ◽  
Courtship Activity ◽  
Peripheral Motor

Sex steroids affect the motivation to court mates, but less is known about how they influence motor movements associated with courtship behavior. Steroidal control of motor function may be especially important for species in which courtship requires superior strength, stamina, and neuromuscular coordination. Here we use the golden-collared manakin (Manacus vitellinus) to examine whether the neuromuscular circuitry that controls motoric aspects of courtship activity is sensitive to androgens. Males of this tropical species attract mates by rapidly jumping among branches in a courtship arena and using their wings to produce loud wing snaps. Testosterone activates this display via the androgen receptor (AR), and past work reveals that manakins injected with radio-labeled T (3H-T) accumulate radioactivity in the spinal cord. Thus, we used quantitative PCR to measure AR, estrogen receptor-α (ER-α) subtype, and aromatase (AROM) mRNA in spinal cords of male and female manakins and zebra finches. Expression of AR, but not ER-α or aromatase, was higher throughout the manakin spinal cord compared with the zebra finch. Next, we tested whether AR-expressing skeletal muscles are innervated by motor and sensory neurons that also express AR. To do this, we backfilled spinal neurons by injecting fluorescent tracers into select AR-sensitive wing and leg muscles of wild caught male and female manakins. We then removed these spinal cords and measured AR expression with in situ hybridization. Both sexes showed abundant AR mRNA in the cervical and lumbosacral spinal enlargements as well as in dorsal root ganglia attached to these enlargements. Together our findings suggest that androgens act widely on peripheral motor and sensory circuits in golden-collared manakins to influence wing snapping displays.

scholarly journals Length-weight relationships and condition factor of Hyperopisus bebe (Lacepede, 1803) (Actinopterygii: Osteoglossiformes) in River Galma, Zaria, Kaduna State, Nigeria

2017 ◽  
Vol 4 (8) ◽  
pp. 301-305
Author(s):  
Matouke M. Moise
Keyword(s):  
Water Quality ◽  
Water Body ◽  
Growth Pattern ◽  
Condition Factor ◽  
Allometric Growth ◽  
Male And Female ◽  
B Values ◽  
The Poor ◽  
Poor Water Quality ◽  
The Mean

The investigation of length-weight relationship and condition factor are very relevant indices to ascertain the health of fish in the water body. Length-weigh relationship and condition factor of Hyperopisus bebe (Lacepede, 1803) (Actinopterygii: Osteoglossiformes: Mormyridae) in River Galma, Zaria, Kaduna State, Nigeria, were assessed. The mean length and mean weigh in male and female were 26.703 cm +/- 0.51 cm and 25.32 cm +/- 0.898 cm; 158.2 g +/- 10.1 g and 95.91 g +/- 9.26 g, respectively. The exponent or growth pattern 'b' values for male and female were 2.009 and 2.176. The condition factor for male and female were 0.59 and 0.83, respectively. The negative allometric growth pattern and poor condition factor might be due to the poor water quality in the fish ecosystem and should be regarded with concern.

Androgen therapy improves muscle mass and strength but not muscle quality: results from two studies

2003 ◽  
Vol 285 (1) ◽  
pp. E16-E24 ◽  
Author(s):  
E. Todd Schroeder ◽  
Michael Terk ◽  
Fred R. Sattler
Keyword(s):  
Muscle Quality ◽  
Thigh Muscle ◽  
Muscle Area ◽  
Cross Sectional ◽  
Androgen Therapy ◽  
Leg Muscles ◽  
Immunodeficiency Virus ◽  
Relationship Of ◽  
The Relationship ◽  
Flexion And Extension

The relationship of strength to muscle area was used to assess change in muscle quality after anabolic interventions. Study 1: asymptomatic human immunodeficiency virus-positive men (39 ± 9 yr) were randomized to nandrolone (600 mg/wk) ± resistance training (RT). Study 2: older healthy men (72 ± 5 yr) were randomized to oxandrolone (20 mg/day) or placebo. Maximum voluntary strength was determined by the 1-repetition maximum (1-RM) method for leg press, flexion and extension, and cross-sectional area of leg muscles by MRI. From study week 0 to study week 12, muscle quality was unchanged with nandrolone, oxandrolone, or oxandrolone placebo, respectively, for total thigh muscles (1.23 ± 0.012 vs. 1.27 ± 0.29 kg/cm2; 9.0 ± 1.1 vs. 8.9 ± 1.2 N/cm2; 8.9 ± 1.2 vs. 8.9 ± 1.9 N/cm2) and hamstrings (0.41 ± 0.08 vs. 0.43 ± 0.07 kg/cm2; 0.90 ± 0.14 vs. 0.95 ± 0.016 N/cm2; 0.94 ± 0.23 vs. 0.93 ± 0.21 N/cm2). Lower-extremity 1-RM strength increased several times greater with RT+nandrolone (51–63% increases) than with nandrolone alone (4.7–16%), despite similar increases in muscle area; therefore, muscle quality increased from 1.13 ± 0.17 to 1.51 ± 0.18 kg/cm2 (+36 ± 19%; P < 0.001) for total thigh muscle, 0.37 ± 0.10 to 0.53 ± 0.08 kg/cm2 (+49 ± 39%; P < 0.001) for hamstrings, and 0.73 ± 0.19 to 1.07 ± 0.16 kg/cm2 (+55 ± 36%; P < 0.001) for quadriceps. Thus androgen therapy alone did not improve muscle quality, but the addition of RT to nandrolone produced substantive improvements.

scholarly journals MORPHOMETRIC AND GROWTH PATTERNS OF THE BLOOD CLAM (Anadara granosa) FROM THE BAGAN SIAPI-API COASTAL AREA ROKAN HILIR

2019 ◽  
Vol 46 (3) ◽  
pp. 37
Author(s):  
Silfia Eka Dewi ◽  
Eddiwan Eddiwan ◽  
Efawani Efawani
Keyword(s):  
Shell Length ◽  
Growth Pattern ◽  
Coastal Area ◽  
Intertidal Zone ◽  
Growth Patterns ◽  
Morphometric Characteristics ◽  
Male And Female ◽  
B Values ◽  
Blood Clam ◽  
Anadara Granosa

This study was conducted in the intertidal zone in the waters of Bagan Siapi-api Rokan Hilir Regency in May-June 2018. This study aims to examine morphometrics and growth patterns in blood clams (Anadara granosa) in Bagan Siapi-api waters. A total of 100 samples (23.89-50.52 mm shell length and 3.85-18.16 grams total weight) were analyzed. From the results of observations it was found that the number of male and female ribs was 8-20, and there were 3 differences in morphometric characteristics between male and female, namely male blood clams longer than females, while female blood shells were wider and thicker than males. Furthermore, the growth pattern of A. granosa was negative allometric, with male b values 1.46 and females 0.74.

scholarly journals Pure and raw glycerol in the diet of broiler chickens, its effect on the production parameters and slaughter value

2011 ◽  
Vol 54 (3) ◽  
pp. 308-318
Author(s):  
P. Suchý ◽  
E. Straková ◽  
L. Kroupa ◽  
I. Herzig
Keyword(s):  
Broiler Chickens ◽  
Live Weight ◽  
Farm Animals ◽  
Control Group ◽  
Raw Glycerol ◽  
Male And Female ◽  
Production Parameters ◽  
The Mean ◽  
Ad Libitum ◽  
Meat Type

Abstract. The experiment was performed with a total of 180 day-old, ROSS 308 combination, meat-type hybrid chickens that were divided according to sex into the control group (C1 and C2 with 30♀ and 30♂, respectively) and two experimental groups: GLY-P1 and P2 with pure glycerol (30♀ and 30♂), and GLY-R1 and R2 with raw glycerol (30♀ and 30♂). The chickens received three feeding mixtures during the experiment: the pre-fattening mixture (BR 1) until Day 14, the fattening mixture (BR 2) from Day 15 to Day 30, and the post-fattening mixture from Day 31 to Day 40 (BR 3). 50 % of the soybean oil in feeding mixtures used in the experimental groups (GLY-P and GLY-R) was replaced with pure or raw glycerol at a ratio of 1:2. The feed and water were available ad libitum for consumption. The mean live weight of both male and female chickens in experimental groups on Days 15 and 40 was statistically significantly higher (P≤0.05, P≤0.01) than that in the control group. The consumption of the feeding mixture during the entire 40-day fattening period was higher in female and male chickens in experimental groups. The differences in the mean weight of processed carcass between the control and experimental groups were very significant (P≤0.01). Glycerol obtained during rapeseed processing is a suitable source of energy and can be added in feeds designed for farm animals.

scholarly journals Growth performance of 6th generation KUB-2 chicken

2021 ◽  
Vol 888 (1) ◽  
pp. 012015
Author(s):  
K Komarudin ◽  
T Sartika ◽  
N Pratiwi ◽  
T Kostaman
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Egg Production ◽  
Study Data ◽  
Meat Production ◽  
Feed Conversion ◽  
Dual Purpose ◽  
Male And Female ◽  
Important Trait ◽  
Local Chicken

Abstract KUB-2 chicken is an improved local chicken originally from KUB-1 chicken. KUB-2 has been assembled in the Indonesian Research Institute for Animal Production (IRIAP), and it has two sub-populations, namely KUB-2 Balai and KUB-2 kk. KUB-2 has dual purpose functions, for either meat or egg production. For farmers who raise a local chicken to yield meat, growth is an important trait. The study had the objective to evaluate the growth performance of KUB-2 chicken. About 2,540 6th generation KUB-2 chickens, consisting of 1,240 KUB-2 Balai and 1,300 KUB-2 kk were used in the study. Data were analyzed using a t-test. The average ten-week body weight of male and female KUB-2 kk was statistically higher than KUB-2 Balai (P<0.05). The ten-week body weight of KUB-2 Balai and KUB-2 kk chickens were 1,045.91 g and 1,211.80 g for males, and 832.74 g and 956.02 g for females. The feed conversion was 2.81 for KUB-2 Balai and 2.83 for KUB-2 kk chicken. For meat production, KUB-2 kk seemed more profitable compared to KUB-2 Balai since it had higher body weight and similar feed conversion. It also could be yielded at shorter age than KUB-2 Balai for the same body weight.

scholarly journals The Study of Lower Limb EMG Signals Between Male and Female Muslim during Pertaining to Sujud Postures in Solat

2019 ◽  
Vol 9 (1) ◽  
pp. 24
Author(s):  
Hazwani Harun ◽  
Nashrul Fazli Bin Mohd Nasir ◽  
Ahmad Faizal Salleh
Keyword(s):  
Lower Limb ◽  
Tibialis Anterior ◽  
Lower Leg ◽  
Male And Female ◽  
Leg Muscles ◽  
Paired Samples ◽  
Lower Limb Muscles ◽  
Significant Difference ◽  
Data Signal ◽  
Gastrocnemius Muscles

Electromyography signal level in term of %MVC at lower limb muscles on static posture of feet during sujud (prostration) in solat had been studied based on the sayings of Prophet Muhammad (hadiths). Gastrocnemius and Tibialis Anterior were the chosen muscles as both are the major lower leg muscles on the lower limb part. A total of 10 male and 10 female subjects had participated in this study. The EMG data signal results were analyzed statistically using the Paired-Samples T Test as all the data are normally distributed. The statistical result showed that there is no significant difference of the muscles' signal on the respective posture between male and female. The result of EMG level in term of %MVC between male and female showed that during pertaining to sujud posture, Gastrocnemius muscles are more active in male while Tibialis Anterior muscles are more active in female.

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