scholarly journals Effect of Age and Sex on the Quality of Offal and Meat of the Wild Boar (Sus scrofa)

Animals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 660
Author(s):  
Agnieszka Ludwiczak ◽  
Joanna Składanowska-Baryza ◽  
Marek Stanisz
Keyword(s):  
Wild Boar ◽  
Crude Protein ◽  
Ph Value ◽  
Age Groups ◽  
Protein Ratio ◽  
Wild Boars ◽  
Effect Of Age ◽  
Age And Sex ◽  
Two Age Groups

The goal of the study was to examine the effect of age and sex on the quality of wild boar offal and meat. A number of 32 hunt-harvested animals was assigned to groups according to age (juveniles and sub-adults) and sex. The quality of offal (liver, kidneys, heart and tongue) and m. semimembranosus was examined. The pH value of m. semimembranosus ranged from 5.45 to 5.88. The highest pH was recorded in the kidney and the liver (6.32–6.54 and 6.12–6.31). The meat in the group of juveniles was brighter (p = 0.042), yellower (p = 0.039), showed a greater drip loss (p = 0.007), cooking loss (p = 0.039), and plasticity (p = 0.028), compared to the sub-adults. The extractable fat content in the m. semimembranosus and offal (p = 0.004), and water to crude protein ratio (p = 0.033), also differed between age groups. The results of the study show different quality attributes of offal and meat of wild boars from two age groups. The obtained quality measures suggest that the culinary and technological usefulness of offal and meat from the wild boars may differ according to the age of hunted animals.

Effect of age, sex and slaughter weight on productive performance,carcass characteristics and meat quality of crossbred (Hampshire x Assam local) pigs

2016 ◽  
Vol 50 (4) ◽  
Author(s):  
P. Borah ◽  
J. R. Bora ◽  
R. N. Borpuzari ◽  
A. Haque ◽  
R. Bhuyan ◽  
...  
Keyword(s):  
Meat Quality ◽  
Conversion Efficiency ◽  
Age Groups ◽  
Productive Performance ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Crossbred Pigs ◽  
Effect Of Age ◽  
Age And Sex

The effect of age of slaughter and sex on productive performance, carcass and meat quality characteristics was studied in 4 different age groups viz., T1 (7–8 months), T2 (9–10 months), T3 (11-12 months) and T4 (13-14 months). Each group consisted of 15 barrows and 15 gilts. With the advancement of age, feed conversion efficiency decreased significantly; however, sex did not seem to influence the feed conversion efficiency of crossbred pigs. Hot carcass weight increased linearly with the advancement of age. Carcass length increased with age but was not influenced by sex. The dressing percentage, back fat thickness, loin eye area were not affected by age and sex of the animal. Proximate composition and colour of pork Longissimus dorsi was not affected by the age and sex of the animal. Pork tenderness decreased with age.

scholarly journals Children’s Understanding of Informed Assents in Research Studies

Healthcare ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 871
Author(s):  
Hortense Cotrim ◽  
Cristina Granja ◽  
Ana Sofia Carvalho ◽  
Carlos Cotrim ◽  
Rui Martins
Keyword(s):  
Health Care ◽  
Positive Relationship ◽  
Age Groups ◽  
High Capacity ◽  
Decision Making Process ◽  
Objective Understanding ◽  
Level Of Understanding ◽  
Age And Sex ◽  
Acceptance Of Health Care

The assent procedure reflects an effort to enable the minor to understand, to the degree they are capable of, what their participation in the decision making process would involve. Aims: To evaluate the minors’ ability to understand the information provided to them when obtaining assent and to evaluate the opinion of the parents regarding the importance of asking the child’s assent. Methods: The sample included a total of 52 minors aged between 10 and 17 years who underwent exercise echocardiogram. The Quality of Informed Consent is divided into two parts: Part A was used to measure objective understanding and part B to measure subjective understanding. Results: The results show that the minors have a high capacity to understand the information given to them when asking for assent. A positive relationship was found between the two parts of the questionnaire. No statistically significant relationship was found between age and sex and part A and part B or between both age groups (<14 years old and ≥14 years old) and the measure. In the case of the parents, 96.6% of parents consider assent as an advantage for the child’s acceptance of health care. The opinion of the parents is not related to the age, sex or level of schooling. Conclusion: Minors showed a substantial level of understanding regarding the information provided to them. The parents considered the implementation of assent fundamental to the child’s acceptance of health care.

scholarly journals An approach to assess stress in response to drive hunts using cortisol levels of wild boar (Sus scrofa)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Justine Güldenpfennig ◽  
Marion Schmicke ◽  
Martina Hoedemaker ◽  
Ursula Siebert ◽  
Oliver Keuling
Keyword(s):  
Wild Boar ◽  
Stress Hormones ◽  
Age Groups ◽  
Group Living ◽  
Well Being ◽  
Lower Saxony ◽  
Cortisol Levels ◽  
Negative Impacts ◽  
The Impact ◽  
Effect Of Age

AbstractHunting can easily be linked to stress in wildlife. Drive hunts performed two to three times in one area during the respective hunting period, are thought to decrease the pressure hunting places on wildlife. Nevertheless, the expression of cortisol—one of the main mammalian stress hormones—is considered to have negative impacts on animals’ well-being if expressed excessively, which may occur during some (especially repeated) hunting events. We explored the effect of drive hunts on cortisol levels in wild boar in Lower Saxony, Germany, compared these cortisol levels to reference values given by a similar study, and investigated the effect of age, sex, and pregnancy. Blood collected from wild boar shot on drive hunts was analysed using a radioimmunoassay. As expected, we observed elevated cortisol levels in all samples, however, we still found significant differences between age groups and sexes, as well as an influence of pregnancy on cortisol levels. The effect of drive hunts on cortisol levels appears to be weaker than predicted, while the effects of other variables, such as sex, are distinct. Only half of the evaluated samples showed explicitly increased cortisol levels and no significant differences were found between sampling months and locations. Group living animals and pregnant females showed significantly higher cortisol levels. The impact of hunting is measurable but is masked by natural effects such as pregnancy. Thus, we need more information on stress levels in game species.

scholarly journals EFFECT OF FREEZING ON THE MILK QUALITY OF COWS

2020 ◽  
pp. 54-57
Author(s):  
Lyubov Valentinovna Efimova ◽  
Tatyana Vyacheslavovna Zaznobina ◽  
Elena Vladimirovna Gatilova ◽  
Olga Valeryevna Ivanova
Keyword(s):  
Quality Indicators ◽  
Age Groups ◽  
Milk Quality ◽  
Long Term Storage ◽  
Before And After ◽  
Frozen State ◽  
Term Storage ◽  
Two Age Groups

Due to the fact that milk has a short shelf life, the issue of its freezing and long-term storage in the frozen state is relevant. A study was conducted on the effect of freezing on the milk quality after its defrosting of cows-mothers and cows-daughters of Red-Motley breed. As a result, it was established how milk quality indicators to change after five months of storage in a frozen state in cows of two age groups. A high correlation was established between quality indicators before and after freezing. The influence of the “freezing” factor on milk quality indicators was recognized statistically significant, the “generation” factor – not significant.

scholarly journals Use of GPS for Older Adults to Decrease Driving Risk: Perceptions from Users and Non-Users

Geriatrics ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 60
Author(s):  
Anne E. Dickerson
Keyword(s):  
Older Adults ◽  
Global Positioning System ◽  
Risk Perceptions ◽  
Age Groups ◽  
Driving Risk ◽  
Global Positioning ◽  
Healthy Community ◽  
Ability To Drive ◽  
Two Age Groups

Community mobility is important for social participation and quality of life. Thus, it is important to sustain older adults in their communities by supporting their ability to drive as long as possible. Use of global positioning system (GPS) technology may provide such support. This descriptive study examined 89 healthy community older adults’ perspective on using and programming a GPS after using it for wayfinding to unfamiliar destinations. Participants were equally divided between two age groups (60s, 70s) and familiarity with GPS (familiar, unfamiliar). The results showed age differences in problems following GPS directions and those who were familiar found it significantly easier to use. The majority of the unfamiliar group indicated an increased interest in using GPS and were significantly more interested in training to use a GPS. Preference for learning how to use a GPS included in-person delivery and practice with troubleshooting, using the menus and changing routes as topics critical for training. The implications of these results are discussed.

EFFECT OF AGE AND SEX ON THE PLATELET FATTY ACID (FA) COMPOSITION AND IN ITS MODULATION BY PLASMA FA

1987 ◽  
Author(s):  
J Vallés ◽  
M M Santos ◽  
J Aznar
Keyword(s):  
Dietary Habits ◽  
Age Groups ◽  
Plasma Lipid ◽  
Fa Composition ◽  
Lipid Fractions ◽  
Living Together ◽  
Effect Of Age ◽  
Platelet Content ◽  
Age And Sex ◽  
General Plasma

Age, sex and platelet hyperactivity are factors that condition the development of coronary heart disease (CHD). Platelet function is believed to be influenced by its FA pattern, which can be modulated by the FA composition of plasma lipid fractions. Therefore, it seemed of interest to evaluate the effect of age and sex on platelet FA and ascertain whether the plasma influence on platelet FA is modified by age and sex. The study has been performed in 98 subjects, 49 couples, men (M) and women (W), living together and with the same dietary habits. The subjects were divided into three age groups : G I:16-40, GII:40-60,and G III: 60. Plasma and platelet FA of phospholipids (PL), triglycerides, and free FA fractions were evaluated by gas-chromatography. The results showed scarce differences in platelet FA in relation to sex. With respect to age, the percentages of 18:2 and 20:5 in most platelet lipid fractions both in M and in W decrease with age. More interesting are the differences in correlation found between plasma and platelet FA, particularly in the PL fraction, with age and sex. In this respect an increase in the correlation coefficient was found for 16:0,18:0 and 20:4 and a decrease for 20:5 in middle aged men and postmenopausic women (Table). The similarity between these two groups of subjects may have a physiopathological meaning, if we take into account that both are more susceptible to CHD and that an increase in 16:0, 18:0 and 20:4 as well as a decrease in 20:5 may condition a platelet hyperfuntion, circumstance that may be more easily produced by plasma influence in those subjects.The results of the present study also confirm that that in general plasma greately influences the platelet content in 18:1, 18:2 and to a lower extent the saturated FA.

scholarly journals Effect of age at slaughter on carcass characteristics and carcass composition in lambs of mountain Greek breeds

2011 ◽  
Vol 51 (No. 7) ◽  
pp. 311-317 ◽  
Author(s):  
B. Skapetas ◽  
E. Sinapis ◽  
J. Hatziminaouglou ◽  
A. Karalazos ◽  
J. Katanos
Keyword(s):  
Subcutaneous Fat ◽  
Age Groups ◽  
Carcass Characteristics ◽  
Carcass Composition ◽  
Age Group ◽  
Negative Effects ◽  
Slaughter Age ◽  
Total Fat ◽  
Effect Of Age

Forty male lambs of the mountain Greek breed were used to evaluate the effect of age at slaughter on carcass characteristics and composition. The slaughter of lambs was carried out at the age of 30, 45, 60, 75 and 90 days. The slaughter procedure, carcass dissection and carcass composition were realized according to the standard method of CIHEAM-AGRIMED programme. The results of this work showed that the lambs of different age groups did not differ in dressing percentage significantly. The proportion of muscles showed a tendency of increase with the increasing slaughter age but the differences were not significant. The proportion of total fat in carcass increased with the increasing slaughter age from 20.84 to 23.59% for the age group of 30 and 90 days, respectively (P &lt; 0.05). On the contrary, as the age at slaughter increased, the proportion of bones decreased (P &lt; 0.05). Subcutaneous, intermuscular, perinephric and pelvic fats increased with the slaughter age, but only the subcutaneous fat was influenced significantly (P &lt; 0.05). Among the different commercial cuts proportions of long leg, first 5 ribs and shoulder decreased, while those of last 8 ribs-loin and breast-flank increased (P &lt; 0.05). The overall results suggest that the slaughter age of lambs of the mountain Greek breed should be increased from the present ~45 days to more advanced age of 75 or 90 days in order to improve the farmers&rsquo; profits without serious negative effects on the quality of carcasses or meat of lambs. &nbsp; &nbsp;

Quality of meat from three muscles of farmed fallow deer (Dama dama)

2018 ◽  
Vol 58 (2) ◽  
pp. 376 ◽  
Author(s):  
Marta Bykowska ◽  
Marek Stanisz ◽  
Agnieszka Ludwiczak ◽  
Joanna Składanowska ◽  
Piotr Ślósarz
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Free Water ◽  
Fallow Deer ◽  
Dama Dama ◽  
Protein Ratio ◽  
Duration Of Storage ◽  
Colour Parameters ◽  
Technological Quality

The quality of three muscles (supraspinatus, longissimus, semimembranosus) were studied in a group of 12 farmed fallow deer bucks (Dama dama) aged 28 months. The aim was to compare the selected quality traits of these muscles and to assess the extent to which these traits change after 14 days of being stored in vacuum packaging. Both the pH and the temperature were significantly affected by the muscle (P < 0.0001) and the time of storage (P < 0.0001). The supraspinatus muscle had the highest initial and final pH (pH0.5 h = 6.95; pH15d = 5.93), while m. semimembranosus showed the greatest drop in temperature (by 37.5°C) 24 h postmortem. The colour parameters differed among muscles. Only lightness (L*) was not influenced by the duration of storage (P = 0.081). The 14-day storage in a vacuum bag caused a decrease in the drip loss (P = 0.002), free water (%; P = 0.001), free water (cm2; P < 0.0001) and a cooking loss (P = 0.050). The duration of time in storage caused an increase in the dry-matter (P = 0.049) and crude-protein (P = 0.044) contents and a decrease of the water to protein ratio (W : CP; P = 0.014). There was a significant effect of muscle on the dry-matter (P < 0.0001) and crude-protein (P < 0.001) contents and W : CP (P < 0.0001). The highest contents of dry matter (P ≤ 0.01) and crude protein (P ≤ 0.01) were found in m. longissimus. The highest W : CP was observed in m. supraspinatus (W : CP24 h = 4.02; W/CP15d = 3.92). The results indicated a different technological quality of the analysed muscles, and, thus, a need to further explore the background of these differences in the early postmortem period and after meat maturation.

Learned Helplessness in Physical Education: A Developmental Study of Causal Attributions and Task Persistence

1994 ◽  
Vol 13 (2) ◽  
pp. 108-122 ◽  
Author(s):  
Thomas J. Martinek ◽  
Joseph B. Griffith
Keyword(s):  
Learned Helplessness ◽  
Task Difficulty ◽  
Age Groups ◽  
Developmental Study ◽  
Age Group ◽  
Task Persistence ◽  
Behavioral Measures ◽  
Effect Of Age ◽  
Two Age Groups ◽  
And Task

The purpose of this study was to describe the effect of age on specific psychological and behavioral measures of learned-helpless and mastery-oriented students. The study consisted of two age groups, younger and older, of learned-helplessness and mastery-oriented students. Within each age group, learned-helpless and mastery-oriented students were compared in terms of attributional profiles and levels of task persistence during instruction. Students were asked to view videotapes of their performances, to describe how they thought they did on each task, and to give reasons for their performance. Responses were classified into four attributional categories: (a) ability, (b) effort, (c) task difficulty, and (d) environment or luck. Persistence was also determined by looking at the number of times students would attempt a task. Attributional profiles and task persistence associated with the leamed-helpless condition was more prevalent with the older group than with the younger group.

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