scholarly journals Вплив інбридингу різних ступенів на живу масу свинок та їх власну продуктивність

Author(s):  
С. Л. Войтенко

У статті висвітлена проблема інбридингу у свинарстві, зокрема під час розведення свиней нечисленної, локальної породи.  Встановлений позитивний вплив  інбридингу на живу масу свинок у процесі їх вирощування. Найбільш високу живу масу за відлучення у 45-денному віці мали свинки із найменшим коефіцієнтом інбридингу (0,78–1,56 %), але в процесі росту тварин, особливо із 6-місячного віку, тенденція змінюється і найбільшу живу масу мали свинки із більш високим коефіцієнтом інбридингу (6,24–11,7 %). Позитивні наслідки інбридингу помірних і віддалених ступенів відмічені і за показниками власної продуктивності свинок. Доведено, що із підвищенням коефіцієнту інбридингу з 1,56 %  до 11,7 % вік досягнення тваринами живої маси 100 кг зменшувався на 11,4 днів (P > 0,95), а товщина шпику, виміряна прижиттєво, – на 2,7 мм. На підставі чого зроблений узагальнюючий висновок про можливість  спорідненого підбору батьківських пар у миргородській породі свиней з метою одержання потомків, комплексний коефіцієнт інбридингу яких не вище 11,7 %. The article deals with the problem of inbreeding in pig breeding, in particular when breeding pigs not numerous, local breed. A positive effect of inbreeding on the live weight of pigs during their cultivation has been established. The highest live weight with weaning at the age of 45 days had mumps with the lowest coefficient of inbreeding (0,78–1,56 %), but in the process of animal growth, especially from the age of 6 months, the trend is changing and the largest live weight was of mumps with a higher coefficient of inbreeding (6,24–11,7 %). The positive influence of inbreeding of moderate and distant degrees is also noted in terms of the own productivity of the pigs. It was proved that with the increase in the coefficient of inbreeding from 1,56 % to 11,7 %, the age of reaching a live weight of 100 kg decreased by 11,4 days (P>0,95), and the thickness of the bacon, measured in vivo, by 2,7 mm. On the basis of which a general conclusion is drawn on the possibility of a related selection of parental pairs in Myrhorod breed of pigs for the purpose of obtaining descendants, the complex inbreeding coefficient of which is not higher than 11,7 %.

2020 ◽  
Vol 23 (2) ◽  
pp. 170-177
Author(s):  
T. Koynarski

The rapiddissemination of scrapie over the past few decades led to development of aspecific eradication programme, based on the polymorphisms within the prionprotein gene (PRNP). Current approach encourages the selection ofanimals carrying the resistant ARR/ARR genotype, while other genotypes areconsidered less preferable. Although the strategy seems to be working quitewell, farmers are concerned whether this will affect sheep productivity andsubsequently decrease net profits. The current study was aimed to elucidatethe linkage between the PrP gene polymorphism (based on codons 136,154 and 171) and some productive traits (live weight, reproduction, milk andfleece yield) of three sheep breeds reared in Bulgaria – Assaf, NortheastBulgarian Merino and Blackhead Pleven. The total number of detectedgenotypes was six – ARR/ARR, ARR/ARQ, ARR/ARH, ARQ/ARQ, AHQ/ARQ and ARR/VRQ,with different prevalence within each breed. The observed lack ofsignificant differences in the studied performance traits between the PRNP genotypes suggests that PRNP polymorphisms did not influencethe sheep productive performance. Therefore, selection of animals on theresistant genotype (ARR/ARR) would not worsen their productivity. Theobtained results should help the better understanding of scrapie selectionand the positive effect that it would have to both health care and industry.


2019 ◽  
Vol 15 (2) ◽  
pp. 229
Author(s):  
Ardiana Luthvita Sari

Abstract This study examines the effect of audit committee expertise, audit committee meeting frequency, audit committee size, commissioner board expertise, board composition, firm size, leverage, auditor reputation, to earnings management. Earnings management is the selection of accounting policies by managers for personal purposes at the expense of shareholders' interests. This study predicts the better the audit committee skills the lower the earnings management. The more often the audit committee holds the frequency of meetings, the less profit management. The larger the audit committee size the lower the earnings management. The more the board of commissioners the lower the profit management. The more members of the board composition the lower the earnings management. The more sizes the higher the profit management. The higher the leverage the higher the profit management. The reputation of the auditor negatively affects earnings management. The results showed that: 1) There was a significant positive influence between Audit Committee Skills on earnings management. 2) Frequency Audit Committee meetings have a significant negative effect on earnings management. 3) The size of Audit Committee has a significant negative effect on earnings management. 4) The Board of Commissioners' expertise has a significant negative effect on earnings management. 5) The composition of the Board of Commissioners has a significant positive effect on earnings management. 6) Size (Size Company) have a significant effect on earnings management. 7) DER (Leverage) has no significant effect on earnings management. 8) Reputation Auditors have no significant effect on earnings management. Abstrak Penelitian ini menguji pengaruh keahlian komite audit, frekwensi rapat komite audit, ukuran komite audit, keahlian dewan komisaris, komposisi dewan komisaris, ukuran perusahaan, leverage, reputasi auditor, terhadap manajemen laba. Manajemen laba merupakan pemilihan kebijakan akuntansi oleh manajer untuk tujuan pribadi dengan mengorbankan kepentingan pemegang saham. Penelitian ini memprediksi semakin baik keahlian komite audit semakin rendah manajemen laba. Semakin sering komite audit mengadakan frekuensi rapat maka semakin menurun manajemen laba. Semakin besar ukuran komite audit maka semakin rendah manajemen laba. Semakin ahli dewan komisaris maka semakin rendah manajemen laba. Semakin banyak anggota komposisi dewan komisaris maka semakin rendah manajemen laba. Semakin bersar ukuran maka semakin tinggi manajemen laba. Semakin tinggi leverage maka semakin tinggi manajemen laba. Reputasi auditor berpengaruh negatif terhadap manajemen laba. Hasil penelitian menunjukkan bahwa: 1) Terdapat pengaruh positif signifikan antara Keahlian Komite audit terhadap manajemen laba. 2) Frekuensi Rapat komite audit berpengaruh negatif signifikan terhadap manajemen laba. 3) Ukuran Komite Audit berpengaruh negatif signifikan terhadap manajemen laba. 4) Keahlian Dewan Komisaris berpengaruh negatif signifikan terhadap manajemen laba. 5) Komposisi Dewan Komisaris berpengaruh positif signifikan terhadap manajemen laba. 6) Ukuran Perusahaan berpengaruh signifikan terhadap manajemen laba. 7) DER (Leverage) tidak berpengaruh signifikan terhadap manajemen laba. 8) Reputasi Auditor tidak berpengaruh signifikan terhadap manajemen laba.


Author(s):  
Muhammad Galy Njoman Ari Prabowo ◽  
Furqonti Ranidiah

ABSTRACTThe purpose of this study was to determine the effect of job satisfaction and organizational commitment on employee performance at Wahana Surya Bengkulu.The object of this research was Wahana Surya Bengkulu with the selection of samples in this study conducted by using total sampling. The number of respondents in this study were 65 respondents. The data collection method uses questionnaire.The results of the study show that The first, there is a positive effect of job satisfaction toward the employees’ performance of  Wahana Surya Bengkulu, if the ability is getting better or improved, there is a positive influence of work organization commitment toward the employees; performance of Wahana Surya Bengkulu, if the work discipline of employees increases, it will affect the performance of employees of Wahana Surya Bengkulu,  if employee work motivation increases, of course employee performance will also increase in line with increasing employee motivation, there are effects of job satisfaction, organizational commitment on the performance of employees of Wahana Surya Bengkulu employees, where job satisfaction and organizational commitment affect performance by 61.4%Keywords: Job Satisfaction, Organizational Commitment,  Performance


Author(s):  
Mohamed Afifi ◽  
Tamer S. Abdelmoneim ◽  
Peter H. Brooks ◽  
Ayman Abdel-Aziz Swelum

This study aimed to evaluate the relationship between growth hormone (GH) gene polymorphism and estimated body weight in Harri sheep. One hundred Harri sheep lambs were used to determine the birth weight (BW) and weight at 120 days of age. The daily live-weight gain (DLWG) 0-120 days (g) was calculated. The complete CDS of the Harri sheep GH gene is 2117pb in length (GenBank acc. no. KU255857). Three novel SNPs were detected by comparing with GenBanke acc. no. X12546_1. The G871A SNP in intron II, G1383A in exon IV that resulted in conversion of the amino acid arginine number 121 to lysine (R121K) and the A1509G in intron IV. Each SNP was found on both alleles the mutant homozygote was more common (48, 56 and 50%) than the heterozygote (30, 18 and 20%) for G871A, G1383A and A1509G respectively.A positive significant (P is less than 0.05) correlation between growth traits (BW, 120 day body weight and DLWG) and SNP and a highly significant correlation with the genotype were detected. The regression analysis indicated the positive effect of genotype and SNPs on the growth traits. Individuals carrying homozygote mutant alleles had the heaviest body weight and the highest DLWG. Consequently, these SNP may be useful indicators in the selection of lambs for higher growth rate and meat production


1989 ◽  
Vol 48 (3) ◽  
pp. 519-533 ◽  
Author(s):  
T. Nolan ◽  
J. Connolly

ABSTRACTThe effects of mixed v. mono-grazing by steers and sheep on individual animal growth rate, pasture carrying capacity and live-weight output per ha were measured in a 4-year (1978 to 1981) experiment, after a preliminary familiarization year, 1977. Annual stocking rate treatments consisted of three monosteer, three mono-sheep and seven mixtures of steers and sheep. Annual average stocking rates were 2·11 steers † 8·1 ewes per ha under mixed grazing and, under mono-grazing, 4·44 steers and 15·2 ewes per ha. The range from low to high in stocking rate in mono- or mixed grazing was close to 40%. Over the 4 years a total of about 280 steers, 900 ewes and 1100 lambs were used.Overall, mixed grazing increased average lamb daily live-weight gain (ADG) to weaning and to drafting from 246 to 265 g (P < 0001) and from 211 to 223 g (P < 0·001) respectively. Steer ADG for these periods was increased from 1·419 to 1·520 kg (P < 0·01) and from 0·950 to 1·094 kg (P < 0·001). The choice of reference mono-grazing stocking rates for comparisons of mixed v. mono-grazing ADG can affect these results. Average live-weight outputs (kg/ha) from grazing for the mono-steers, mono-sheep, and mixed grazing were 663, 690 and 714, the range in the latter over the seven mixed grazing treatments being from 605 to 805. Stocking rate was the main factor affecting output per ha. Because of the management rules used in this experiment mixed grazing effects are more appropriately assessed through ADG and measures based on it than on output per unit of area.Models were fitted relating steer and lamb ADG to lamb weaning and lamb and steer drafting to stocking rates of steers and ewes. Mixed grazing benefits to steer and lamb ADG to drafting were greater as their proportion in the mix declined and increased with stocking rate. At the 50% proportion, lamb and steer ADG were improved by 5·2 and 3·4% respectively at low stocking rate and 9·4 and 6·6 at high stocking rate. Predicted steer ADG to lamb weaning for a given steer stocking rate increased with increases in ewe proportion up to five ewes per ha and decreased rapidly with further increments in ewe proportion.Mixed grazing efficiency was also evaluated through the Relative Resource Total. This showed that under mono-grazing 10 to 13% more area was required to produce the same grazing season output as under mixed grazing. The 10% improvement in carrying capacity was exceeded for ewe: steer frequencies ranging from 1·5: 1 to 10: 1. Explanations for this greater efficiency in resource capture/use under mixed grazing are discussed.Substitution rates for lamb ADG to weaning (2·35) and to drafting (2·86) and for steer ADG to drafting (0·21) were fairly constant over the 4 years 1978 to 1981.Selection of mixed stocking rates to suit growth rate targets for different animal types and to match food supply with demand under varying soil/climatic/topographical conditions is discussed.


2021 ◽  
Vol 12 ◽  
Author(s):  
Hamideh Zakariaee ◽  
Mohammad Sudagar ◽  
Seyede Sedighe Hosseini ◽  
Hamed Paknejad ◽  
Kartik Baruah

In this study, we tested the compatibility of two extracts from the plant Jerusalem artichokes and button mushrooms with two different Lactobacillus probiotics (Lactobacillus acidophilus; La and Lactobacillus delbrueckii subsp. Bulgaricus; Lb) to develop a synbiotic formulation to improve the growth, survival, and reproductive performances of farmed fishes. Initially, we employed in vitro approach to monitor the growth of the probiotic lactobacilli in the presence of the different doses of the plant-based prebiotics, with the aim of selecting interesting combination(s) for further verification under in vivo conditions using zebrafish as a model. Results from the in vitro screening assay in the broth showed that both the probiotic species showed a preference for 50% mushroom extract as a source of prebiotic. A synbiotic formulation, developed with the selected combination of L. acidophilus, L. bulgaricus, and 50% mushroom extract, showed a positive influence on the growth and reproductive performances of the zebrafish. Our findings also imply that the improvement in the reproductive indices was associated with the upregulation of a cyp19a gene. Overall results suggest that a combination of L. acidophilus, L. bulgaricus, and mushroom extract can be considered as a potential synbiotic for the successful production of aquaculture species.


2000 ◽  
Vol 43 (5) ◽  
pp. 499-506
Author(s):  
F. Rosner ◽  
S. Polten ◽  
M. Wicke

Abstract. Title of the paper: Comparative investigations about the application of ultrasound measurement (PIGLOG) for prediction ofthe lean meat content in gilts Ultrasound based Systems for in vivo estimation of lean meat content were comparatively investigated in 100 gilts (German Landrace, German Large White, Leicoma and F1). Rank correlations increased between ultrasound based estimations of lean meat and carcass Classification with growing age and live weight, respectively. Lean meat content was estimated with the PIGLOG System and the B-mode device with repeatabilites of R2 = 0.40 and R2 = 0.63, respectively. We can not recommend the use of PIGLOG derived estimates of lean meat content in selection of gilts without prior correction of the calculation algorithm in the investigated populations. Our investigations furthermore demonstrated the importance of sufficient training of the persona conducting the measurements.


2016 ◽  
Vol 86 (3-4) ◽  
pp. 127-151 ◽  
Author(s):  
Zeshan Ali ◽  
Zhenbin Wang ◽  
Rai Muhammad Amir ◽  
Shoaib Younas ◽  
Asif Wali ◽  
...  

While the use of vinegar to fi ght against infections and other crucial conditions dates back to Hippocrates, recent research has found that vinegar consumption has a positive effect on biomarkers for diabetes, cancer, and heart diseases. Different types of vinegar have been used in the world during different time periods. Vinegar is produced by a fermentation process. Foods with a high content of carbohydrates are a good source of vinegar. Review of the results of different studies performed on vinegar components reveals that the daily use of these components has a healthy impact on the physiological and chemical structure of the human body. During the era of Hippocrates, people used vinegar as a medicine to treat wounds, which means that vinegar is one of the ancient foods used as folk medicine. The purpose of the current review paper is to provide a detailed summary of the outcome of previous studies emphasizing the role of vinegar in treatment of different diseases both in acute and chronic conditions, its in vivo mechanism and the active role of different bacteria.


1985 ◽  
Vol 110 (3) ◽  
pp. 329-337 ◽  
Author(s):  
G. A. Schuiling ◽  
H. Moes ◽  
T. R. Koiter

Abstract. The effect of pretreatment in vivo with oestradiol benzoate on in vitro secretion of LH and FSH was studied in long-term ovariectomized (OVX) rats both at the end of a 5-day continuous in vivo pretreatment with LRH and 4-days after cessation of such LRH pretreatment. Rats were on day 0 sc implanted with osmotic minipumps which released LRH at the rate of 250 ng/h. Control rats were implanted with a piece of silicone elastomer with the dimensions of a minipump. On days 2 and 4 the rats were injected with either 3 μg EB or with oil. On day 5 part of the rats were decapitated and the in vitro autonomous (i.e. non-LRH-stimulated) and 'supra-maximally' LRHstimulated release of LH and FSH was studied using a perifusion system. From other rats the minipumps were removed on day 5 and perifusion was performed on day 9. On the 5th day of the in vivo LRH pretreatment the pituitary LH/FSH stores were partially depleted; the pituitaries of the EB-treated rats more so than those of the oil-injected rats. EB alone had no significant effect on the content of the pituitary LH- and FSH stores. On day 9, i.e. 4 days after removal of the minipumps, the pituitary LH and FSH contents had increased in both the oil- and the EB injected rats, but had not yet recovered to control values. In rats not subjected to the 5-days pretreatment with LRH EB had a positive effect on the supra-maximally LRH-stimulated secretion of LH and FSH as well as on the non-stimulated secretion of LH. EB had no effect on the non-stimulated secretion of FSH. After 5 days of in vivo pretreatment with LRH only, the in vitro non-stimulated and supra-maximally LRH-stimulated secretion of both LH and FSH were strongly impaired, the effect correlating well with the LRH-induced depletion of the pituitary LH/FSH stores. In such LRH-pretreated rats EB had on day 5 a negative effect on the (already depressed) LRH-stimulated secretion of LH (not on that of FSH). EB had no effect on the non-stimulated LH/FSH secretion. It could be demonstrated that the negative effect of the combined LRH/EB pretreatment was mainly due to the depressing effect of this treatment on the pituitary LH and FSH stores: the effect of oestradiol on the pituitary LRH-responsiveness (release as related to pituitary gonadotrophin content) remained positive. In LRH-pretreated rats, however, this positive effect of EB was smaller than in rats not pretreated with LRH. Four days after removal of the minipumps there was again a positive effect of EB on the LRH-stimulated secretion of LH and FSH as well as on the non-stimulated secretion of LH. The positive effect of EB on the pituitary LRH-responsiveness was as strong as in rats which had not been exposed to exogenous LRH. The non-stimulated secretion of FSH was again not affected by EB. The results demonstrate that the effect of EB on the oestrogen-sensitive components of gonadotrophin secretion consists of two components: an effect on the pituitary LRH-responsiveness proper, and an effect on the pituitary LH/FSH stores. The magnitude of the effect of EB on the LRH-responsiveness is LRH dependent: it is very weak (almost zero) in LRH-pretreated rats, but strong in rats not exposed to LRH as well as in rats of which the LRH-pretreatment was stopped 4 days previously. Similarly, the effect of EB on the pituitary LH and FSH stores is LRH-dependent: in the absence of LRH, EB has no influence on the contents of these stores, but EB can potentiate the depleting effect of LRH on the LH/FSH-stores. Also this effect disappear after cessation of the LRH-pretreatment.


Author(s):  
Kusnadi .

The purpose of this study was to test the effect of managerial effectiveness to employee performance, task commitment to employee performance, work ethic on the performance of employees, managerial effectiveness to task commitment, managerial effectiveness to the work ethic and the work ethic of the commitment of the employee's duties Regional Water Company (PDAM) Tirta Bhagasasi Bekasi. This research was conducted using the method suryey with path analysis in hypothesis testing. In this study, employees were selected as sample there are 96 employees who selected a random sample by strata or stratified random sampling from a total population of 127 respondents. Took this instrument before being used for the data to test the validity and reliability. The results of this study are as follows: There is a direct positive influence on employee performance managerial effectiveness. There is a direct positive influence on employee performance task commitment. There is a direct positive influence on employee performance work ethic. There is a direct positive influence on the effectiveness of managerial task commitment. There is a direct positive effect managerial effectiveness to the work ethic. There is a direct positive effect on the work ethic of commitment to the task.


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