scholarly journals Characterizing Pork Quality of Carcasses with an Average Weight of 119 Kg

2019 ◽  
Vol 3 (2) ◽  
pp. 124-124
Author(s):  
H. Price ◽  
A. B. Lerner ◽  
E. A. Rice ◽  
J. E. Lowell ◽  
B. N. Harsh ◽  
...  
Keyword(s):  
Average Weight ◽  
Pork Quality

scholarly journals Characterizing Pork Quality of Carcasses with an Average Weight of 119 Kg

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
H. Price ◽  
A. B. Lerner ◽  
E. A. Rice ◽  
J. E. Lowell ◽  
B. N. Harsh ◽  
...  
Keyword(s):  
Iodine Value ◽  
Total Population ◽  
Fiber Type ◽  
Carcass Weight ◽  
Average Weight ◽  
Pork Quality ◽  
Quality Traits ◽  
Quality Measurements

ObjectivesBetween 1995 and 2018, average hot carcass weight of U.S. pork carcasses increased from 82 kg to 96 kg, which is an increase of approximately 17%. At current rates, pork carcasses in the U.S. will weigh on average, 105 kg by the year 2030 and over 118 kg by 2050. Although this represents an increase in throughput efficiency due to increases in economy of scale, projecting continued increases in the future raises some concerns. Therefore, the objective was to characterize pork quality of carcasses ranging from 78 to 145 kg with a mean weight of 119 kg.Materials and MethodsCarcass composition, such as hot carcass weight (HCW), back fat depth and loin depth were measured on 666 carcasses. Additionally, loin quality measurements, such as pH, loin instrumental and visual color, and iodine value of clear plate fat were measured on approximately 90% of the total population. Ham quality, 14 d aged loin and chop quality measurements, and loin chop slice shear force (SSF) were evaluated on approximately 30% of the total population. Finally, myosin heavy chain fiber type determination was completed on approximately 50 carcasses selected from carcasses ranging from 97 to 133 kg. The slope of regression lines and coefficients of determination between hot carcass weights and quality traits were calculated using the REG procedure in SAS and considered significantly different from 0 at P ≤ 0.05.ResultsAs HCW increased loin depth (b1 = 0.2496, P < 0.0001), back fat depth (b1 = 0.1374, P < 0.0001), loin weight (b1 = 0.0345, P < 0.0001), chop weight (b1 = 1.6626, P < 0.0001), and ham weight (b1 = 0.1044, P < 0.0001) increased. There was a decrease in estimated lean (b1 = –0.0751, P < 0.0001) and iodine value (b1 = –0.0923, P < 0.0001) as carcass weight increased, however, HCW only accounted for ≤ 24% (R2 = 0.24) of the variation in estimated lean and iodine value. Additionally, there were no significant differences in gluteus medius pH (b1 = 0.0009, P = 0.30) or instrumental lightness (b1 = 0.0301, P = 0.15), redness (b1 = –0.0036, P = 0.73) or yellowness (b1 = 0.0058, P = 0.57) of the ham as carcass weight increased. As carcass weight increased, 1 d loin instrumental yellowness (b*) increased (b1 = 0.0092 P < 0.01), however HCW only explained 1% of the variation in b*. Heavier carcasses were more tender (decreased SSF of chops cooked to 71°C, (b1 = –0.0674, P < 0.0001), although HCW only explained 9% of the variation in SSF. Total cook loss of chops used for SSF determination decreased as HCW increased (b1 = –0.0512, P < 0.0001), and HCW explained 15% (R2 = 0.15) of the variation in total cook loss. There were no significant differences in fiber type percentage, type 1 (b1 = –0.0170, P = 0.81), 2a (b1 = –0.0786, P = 0.23), 2x (b1 = –0.0201, P = 0.80), or 2b (b1 = 0.1224, P = 0.37), or fiber type area, type 1 (b1 = –26.6331, P = 0.22), 2a (b1 = –40.7257, P = 0.07), 2x (b1 = –46.9459, P = 0.25), or 2b (b1 = –26.2537, P = 0.38) as HCW increased.ConclusionDue to the lack of variation explained by HCW (≤ 15%), pork quality traits are not expected to be compromised as HCW continues to increase. The results suggest that increasing HCW to 119 kg did not have detrimental effects on pork quality attributes.

Systems of Weed Control for Peanuts

Weed Science ◽  
1973 ◽  
Vol 21 (3) ◽  
pp. 176-180 ◽  
Author(s):  
E. W. Hauser ◽  
S. R. Cecil ◽  
C. C. Dowler
Keyword(s):  
Seed Germination ◽  
Weed Control ◽  
Soil Types ◽  
Average Weight ◽  
Clay Loam ◽  
Sandy Clay Loam ◽  
Effective System ◽  
Economical System ◽  
Grade Average

Systems of weed control composed of (a) herbicides only, (b) herbicides plus cultivation, or (c) cultivation only were devised. The most effective systems, involving herbicide sequences plus one “non-dirting” layby cultivation, controlled twelve troublesome species of weeds with acceptable yields of peanuts (Arachis hypogaea L.). On Greenville sandy clay loam, a particularly effective and economical system of weed control consisted of (a) N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine (benefin) used as a preplanting incorporated treatment, then (b) S-propyl dipropylthiocarbamate (vernolate) either incorporated into the soil before planting or injected at planting, and finally, (c) a layby cultivation 5 to 6 weeks after planting. A similarly effective system on Tifton loamy sand involved vernolate injected at planting, 2-sec-butyl-4,6-dinitrophenol (dinoseb) at “cracking”, and 4-(2,4-dichlorophenoxy)butyric acid (2,4-DB) as a postemergence treatment followed by the layby cultivation. The “non-dirting” layby cultivation, averaged over both years and herbicide sequences, significantly increased yields of peanuts on both soil types. None of the systems of weed control caused consistent differences in market grade, average weight per seed, germination, or organoleptic quality of the peanuts.

Quantitative Study on the Effect of Extrusion Process of AZ80 Magnesium Alloy

2010 ◽  
Vol 129-131 ◽  
pp. 1191-1195
Author(s):  
Yan Lou
Keyword(s):  
Set Theory ◽  
Rough Set ◽  
Rough Set Theory ◽  
Extrusion Process ◽  
Average Weight ◽  
Characteristic Parameters ◽  
Billet Temperature ◽  
Az80 Magnesium Alloy ◽  
Ram Speed

By data mining from 3DFEM simulation and Rough Set Theory (RST), it was performed that the extrusion process and die structures effect on the quality of AZ80 magnesium extrudate. The weights of the effect can be obtained. The results show that the effect of the billet temperature on the product quality is dominate, and its average weight is 0.27. The second important parameter is the ram speed and its average weight is 0.22. In addition, it was also found that the effect of the die characteristic parameters on the extrudate is insignificant.

Study of feed quality and biological indicators of varietal feeding of newly created different ploidy mulberry varieties

2021 ◽  
Vol 68 (07) ◽  
pp. 7-11
Author(s):  
Mahir Həmzə oğlu Hacıyev ◽  
◽  
Vəfa İbrahim qızı Məhərrəmova ◽  
Keyword(s):  
Biological Indicators ◽  
Average Weight ◽  
Biological Parameters ◽  
Average Mass ◽  
Feed Quality ◽  
Leaf Yield ◽  
New Varieties

The article clarifies the effect of the leaves of various newly created ploidy mulberry varieties on the productivity of mulberry silkworms, as well as on the biological parameters of silkworms. New varieties are described by conducting varietal feeding to determine the feed quality of varieties by providing information on leaf yield and the leaf yield of newly created varieties, by studying the biological parameters of varietal feeding, by determining the average mass of alive cocoons, silkness%, cocoon yield. Keywords: mulberry, sort, leaf yield, silkiness, viability, average weight of cocoon, cocoon product

scholarly journals The effect of using grafted seedlings on the yield and quality of tomatoes grown in greenhouses 

2018 ◽  
Vol 45 (No. 2) ◽  
pp. 76-82 ◽  
Author(s):  
Rodica Soare ◽  
Maria Dinu ◽  
Cristina Babeanu
Keyword(s):  
Fruit Quality ◽  
Vegetative Growth ◽  
Morphological Characteristics ◽  
Fruit Production ◽  
Soluble Solids ◽  
Average Weight ◽  
Appreciable Effect ◽  
Tomato Plants ◽  
Production Characteristics

This study was aimed at observing the effect of the grafting of tomato plants on morphological (vegetative growth), production and nutritive characteristics (quantity and quality of production). For this purpose, the ‘Lorely F1’ cultivar was used as a scion grafted onto the ‘Beaufort’ rootstock. Plants were cultivated with a stem and two stems. The observations collected in this study were concerned with the characteristics of plant growth. The studied morphological characteristics were plant height, stem diameter and number of leaves, and the studied production characteristics were the characteristics of fructification and productivity (the average number of fruit per plant, the average weight of the fruit, production per plant). Particular attention was paid to the nutritional characteristics of the fruit, to the fruit quality (total soluble solids, total sugar, acidity, vitamin C, antioxidant activity (by the Trolox method) and the contents of lycopene and beta-carotene). The results showed that grafting positively influenced the growth and production characteristics. Grafting of tomato plants had an appreciable effect on the vegetative growth of the variant 2-grafted tomatoes with a stem. The best option in terms of productivity and production was the variant 3-grafted tomatoes with two stems, which yielded 9.2 kg per plant. Fruit quality was not improved in any of the grafted variants. 

Relationship of Carcass Weight to Muscle Fiber Characteristics and Pork Quality of Crossbred (Korean Native Black Pig × Landrace) F2 Pigs

2011 ◽  
Vol 6 (2) ◽  
pp. 522-529 ◽  
Author(s):  
Gap-Don Kim ◽  
Byeong-Woo Kim ◽  
Jin-Yeon Jeong ◽  
Sun-Jin Hur ◽  
In-Chul Cho ◽  
...  
Keyword(s):  
Muscle Fiber ◽  
Carcass Weight ◽  
Pork Quality ◽  
Relationship Of

scholarly journals Agro morphological characterization of cashew trees (Anacardium occidental L.), in improvement for the high yield and high quality of raw nuts in Burkina Faso

2021 ◽  
Vol 14 (9) ◽  
pp. 3188-3199
Author(s):  
Windpouiré Vianney Tarpaga ◽  
Larbouga Bourgou ◽  
Moussa Guira ◽  
Albert Rouamba
Keyword(s):  
Burkina Faso ◽  
Core Collection ◽  
Morphological Diversity ◽  
Morphological Characterization ◽  
High Yield ◽  
Morphological Description ◽  
Average Weight ◽  
In Situ Collection

The cashew sector has taken a great economic interest, due to the strong global demand for raw nuts. However, in Burkina Faso, the productivity of orchards still remains low, a consequence of a lack of breeding program on the species. In order to increase yields and improve the quality of the raw nut, efficient clones must be developed. Surveys were carried out and a primary in situ collection was made from which a core collection of 15 trees was extracted. An agro-morphological description of the selected trees and an analysis of the structuration of the variability within them were carried out. The study revealed appreciable agro-morphological diversity through shape, size and color of apple, type of inflorescence, fruiting period and the health of trees. A structure of diversity based on agronomic criteria led to identify 5 groups of trees, characterized by an average weight of the nut between 6.64 and 8.32 g, a kernel rate between 28.10 and 31.26% and a yield per tree between 34.27 and 104.42 kg. Performing trees will be erected as heads of clones for the production of grafted plants. La filière anacarde a pris un grand intérêt économique, suite à la forte demande mondiale en noix brutes. Cependant, au Burkina Faso, la productivité des vergers demeure encore faible, conséquence d’une absence de sélection variétale du matériel végétal. En vue d’accroître les rendements et d’améliorer la qualité de la noix brute, une recherche de clones performants était indispensable. Des prospections ont été conduites et une collection primaire in situ a été constituée dont une core collection de 15 arbres a été extraite. Une description agro-morphologique des arbres sélectionnés et une analyse de la structuration de la variabilité en son sein ont été conduites. L’étude a révélé une diversité agro morphologique appréciable à travers la forme, le calibre et la couleur de la pomme, le type d’inflorescence, la période de fructification et l’état sanitaire des arbres. Une structuration de la diversité basée sur les critères agronomiques a permis d’identifier 5 groupes d’arbres, caractérisés par un poids moyen de la noix compris entre 6,64 et 8,32 g, un taux d’amande compris entre 28,10 et 31,26% et un rendement par arbre compris entre 34,27 et 104,42 kg. Les arbres les plus performants constitueront des têtes de clones pour la production de plants par greffage.

scholarly journals Effect of energy concentration in the diets on sensorial and chemical parameters of Morada Nova, Santa Inez and Santa Inez x Dorper lamb meat

2010 ◽  
Vol 39 (9) ◽  
pp. 2017-2023 ◽  
Author(s):  
Ana Sancha Malveira Batista ◽  
Roberto Germano Costa ◽  
Déborah dos Santos Garruti ◽  
Marta Suely Madruga ◽  
Rita de Cássia Ramos do Egypto Queiroga ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Shear Force ◽  
Energy Concentration ◽  
Average Weight ◽  
Chemical Quality ◽  
Chemical Parameters ◽  
Lamb Meat ◽  
Sensorial Attributes ◽  
Water Holding

The objective of this study was to investigate the influence of genotype and the energy concentration in the diet on the sensorial and chemical quality of lamb meat. It was evaluated samples from 18 Morada Nova animals, 18 Santa Inez animals, and 18 Santa Inez x Dorper crossbred animals, totalizing 54 animals. The animals were kept with two diets, with energy concentrations of 10.46 and 12.56 MJ ME/kg, respectively, and slaughtered at 30 kg average weight. It was determined contents of protein, moisture, fat and ash, as well as cooking loss, water-holding capacity, shear force, and sensorial attributes of flavour, firmness and juiciness of the meat. Genotype influenced the chemical composition of lamb meat because animals of Morada Nova breed presented the highest moisture content, and Santa Inez x Dorper crossbred showed the highest protein percentage; however, there was no variation in the sensorial attributes of lamb meat of these three genotypes. The diet with the highest energy concentration provides meat with higher juiciness.

scholarly journals The Effect of Age and Genotype on Quality of Eggs in Brown Egg‑Laying Hybrids

2019 ◽  
Vol 67 (2) ◽  
pp. 407-414 ◽  
Author(s):  
Adam Kraus ◽  
Lukáš Zita
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Laying ◽  
Average Weight ◽  
Eggshell Thickness ◽  
External Quality ◽  
Technological Value ◽  
Effect Of Age

The aim was to assess the internal and external quality of consumer eggs of egg‑laying hens of two selected genotypes depending on their age. All of these hens were kept in enriched cages. There were compared eggs from Hy‑Line Brown and ISA Brown hens at the age from 36 to 64 weeks. In total, 3840 eggs from 300 hens were evaluated. Quality of eggs was determined by their technological value. Statistically significant interactions (P = 0.001) between age and genotype were found in all evaluated parameters except for the yolk colour (P = 0.044), whereas there was not found interaction (P = 0.072) between age and genotype in eggshell strength. The significant effect of hens’ age was found in all evaluated parameters, with the only exception of the yolk colour. The results showed that the average weight of eggs, eggshell, albumen and yolk increased with the age. Also the eggshell proportion, its colour and yolk index values ​​increased, whereas the egg shape index, eggshell thickness and strength, albumen proportion, Haugh units, the albumen and the yolk index decreased. Statistically significant effect of the genotype was found in all evaluated parameters except for the yolk index. When comparing both genotypes, the eggs from ISA Brown hens had a better quality. The trend of deteriorating egg quality with age was confirmed.

scholarly journals Variability assessment of productivity traits and quality of berries in the genetic collection of garden strawberry (Fragaria ananassa Duch.) in the Orenburg region

2021 ◽  
Vol 845 (1) ◽  
pp. 012015
Author(s):  
E V Aminova ◽  
R R Salimova ◽  
O E Merezhko
Keyword(s):  
Field Experiments ◽  
Sugar Content ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Average Weight ◽  
Marketable Yield ◽  
Berry Quality ◽  
Growing Conditions ◽  
Productivity Potential

Abstract Nowadays the study of the interrelation of the genotype of strawberry plants in garden and climatic conditions is extremely relevant. Due to the various systems of genetic control and the modifying effects of growing conditions on the manifestation of quantitative traits, there is the need to assess the genotypic variability of economically valuable features, focused on the identification of genotypes characterized by stability and adaptive qualities in growing conditions. The study examined 15 varieties of garden strawberries of domestic and foreign selection. The field experiments and surveys were carried out according to the Program generally accepted in the Russian Federation and methodology for the variety study of fruit, berry and nut crops. We studied such features as the number of peduncles (pcs/bush), number of berries (pcs/bush), average weight of berries (g), total and marketable yield (g/bush), sugar content in berries, soluble solids and ascorbic acid. The purpose of this work was to assess the genotype-year interrelation in terms of the variability of productivity features and berry quality and to identify strawberry varieties with a stable genotype. As a result of two-way analysis of variance for the variety-year interrelation, the obtained values were 1.10-8.50 at standard Fst. - 1.24. Statistically important differences had indicators of productivity of a bush between the first and second clusters (t = 5.89 at p <0.01), the first and third (t = 15.83 at p <0.01), the second and third clusters (t = 8.13 at p <0.01), as well as the average berry weight between the first and third, second and third clusters (t = 15.50 and 6.99 at p <0.01, respectively). Significant differences in the value of the Euclidean distance were revealed for varieties Mishutka (54.5), Daryonka (54.5), Pervoklassnitsa (58) realizing their productivity potential in different years of cultivation.

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