Factors Affecting the Plasmin-Plasminogen System in Milk Obtained from Three Greek Dairy Sheep Breeds with Major Differences in Milk Production Capacity

In dairy sheep industry, milk production dictates the value of a ewe. Milk production is directly related to the morphology and physiology of the mammary gland; both being designated targets of breeding strategies. Although within a flock breeding parameters are mutual, large differences in milk production among individual ewes are usually observed. In this work, we tested two of the most productive dairy sheep breeds reared intensively in Greece, one local the Chios breed and one foreign the Lacaune breed. We used transcriptome sequencing to reveal molecular mechanisms that render the mammary gland highly productive or not. While highly expressed genes (caseins and major whey protein genes) were common among breeds, differences were observed in differentially expressed genes. ENSOARG00000008077, as a member of ribosomal protein 14 family, together with LPCAT2, CCR3, GPSM2, ZNF131, and ASIP were among the genes significantly differentiating mammary gland’s productivity in high yielding ewes. Gene ontology terms were mainly linked to the inherent transcriptional activity of the mammary gland (GO:0005524, GO:0030552, GO:0016740, GO:0004842), lipid transfer activity (GO:0005319) and innate immunity (GO:0002376, GO:0075528, GO:0002520). In addition, clusters of genes affecting zinc and iron trafficking into mitochondria were highlighted for high yielding ewes (GO:0071294, GO:0010043). Our analyses provide insights into the molecular pathways involved in lactation between ewes of different performances. Results revealed management issues that should be addressed by breeders in order to move toward increased milk yields through selection of the desired phenotypes. Our results will also contribute toward the selection of the most resilient and productive ewes, thus, will strengthen the existing breeding systems against a spectrum of environmental threats.

Download Full-text

A comparison of alternatives of milk recording schemes for dairy sheep

Archives Animal Breeding ◽

10.5194/aab-44-297-2001 ◽

2001 ◽

Vol 44 (3) ◽

pp. 297-304

Author(s):

J. Wojtowski ◽

A. Gut ◽

P. Slósarz ◽

K. Molinski

Keyword(s):

Milk Production ◽

Milk Protein ◽

Measurement Methods ◽

Dairy Sheep ◽

Sheep Breeds ◽

Fat Yield ◽

Pairwise Test ◽

Synthetic Line

Abstract. A total of 307 lactations of ewes from synthetic line (13/16 East Friesian Milk Sheep, 3/16 Polish sheep breeds) were invesstigated. Ewes were milked after weaning, starting on the 60th day of lactation, for the period of our months. Milk recording was conducted using the A30 scheme during the morning and afternoon milkings. Twenty one simplified milk recording schemes were investigated, taking into account the data from 4 or 6 control milkings, and estimating the differences between milk production, protein and fat contents on the basis of the simplified and the A30 methods. The accuracy of the methods to estimate milk (protein, fat) yields was verified using the pairwise test. Among the tested 4-measurement methods, the most useful – in terms of the accuracy of milk, protein and fat yield estimations – were models, in which milk recording is conducted once a month, only in the morning or afternoon. The application of such methods does not result in the deterioration of accuracy of milk recording for sheep and makes it possible to lower the costs connected with recording by approximately 50 %.

Download Full-text

PRODUCTION POTENTIAL AND BREEDING SCHEMES OF SOME MEDITERRANEAN DAIRY SHEEP BREEDS

Animal Genetic Resources Information ◽

10.1017/s1014233900003060 ◽

1991 ◽

Vol 8 ◽

pp. 13-26 ◽

Cited By ~ 1

Author(s):

N. P. Zervas ◽

J. Hatziminaoglou ◽

J. Boyazoglu ◽

A. Georgoudis

Keyword(s):

Genetic Parameters ◽

Management Practices ◽

Reproductive Potential ◽

Dairy Sheep ◽

Phenotypic Characteristics ◽

Production Potential ◽

Sheep Population ◽

Sheep Breeds ◽

Breeding Schemes ◽

The Mediterranean

SUMMARYExaminded are some of the most important dairy sheep breeds, among the great diversity of the Mediterranean sheep population, by focusing on their phenotypic characteristics, their productive and reproductive potential as well as on the management practices and systems of testing. Information is also given on their genetic parameters, with emphasis on heritability coefficients, and the range of respective selection and breeding schemes, applied under their particular husbandry conditions.

Download Full-text

Design, Explanation, and Evaluation of Training Model Structures Based on Learning Organization—In the Cement Industry with a Nominal Production Capacity of Ten Thousand Tons

International Education Studies ◽

10.5539/ies.v10n1p163 ◽

2016 ◽

Vol 10 (1) ◽

pp. 163

Author(s):

Hamid Rahimian ◽

Mojtaba Kazemi ◽

Abbas Abbspour

Keyword(s):

Organizational Learning ◽

Learning Organization ◽

Structural Equation ◽

Production Capacity ◽

Organizational Factors ◽

Training Model ◽

Equation Model ◽

Cement Industry ◽

Individual Factors ◽

Factors Affecting

This research aims to determine the effectiveness of training based on learning organization in the staff of cement industry with production capacity over ten thousand tons. The purpose of this study is to propose a training model based on learning organization. For this purpose, the factors of organizational learning were introduced by qualitative research in the form of open codes, axial codes, selective codes and the resulted observations, and then the final model was obtained by structural equation model. The data were collected from the staff of three cement companies of Abyek, Tehran, and Sepahan, with a statistical population of 1719 staff of cement industry. The qualitative research sample included 29 experienced experts in the field of cement industry, and the quantitative research sample included 326 staff and experts, who were selected by multi-stage cluster sampling. A self-made questionnaire consisting of 72 questions was used to measure quantitative variables. The reliability of the questionnaire was 0.93 and its content and face validity was determined by expert colleagues and professors, the structural equation model and regression was used to analyze the quantitative data. The results showed that the status of learning organization in cement companies is in average level. Finally, the obtained model consisted of both individual and organizational factors. The individual factors affecting organizational learning include teaching scientific content, perception, trust, and self-efficacy of training. The organizational factors affecting organizational learning include organizational culture, forming the structure, the method of management and leadership, preparing human resource (identity), adaption to the environment, policies, rules, and regulations, and achieving a viable product. The share of individual factors on learning organization is higher than the effect organizational factors; the share of each factor is also determined.

Download Full-text

Characterization of the PRNP gene locus in Chios dairy sheep and its association with milk production and reproduction traits

Animal Genetics ◽

10.1111/j.1365-2052.2010.02159.x ◽

2011 ◽

Vol 42 (4) ◽

pp. 406-414 ◽

Cited By ~ 6

Author(s):

A. Psifidi ◽

Z. Basdagianni ◽

C. I. Dovas ◽

G. Arsenos ◽

E. Sinapis ◽

...

Keyword(s):

Milk Production ◽

Gene Locus ◽

Prnp Gene ◽

Dairy Sheep ◽

Reproduction Traits

Download Full-text

Factors affecting the milk production of dairy cattle in northern rural areas of Bangladesh

International Journal of Agricultural Research Innovation and Technology ◽

10.3329/ijarit.v4i2.22646 ◽

2015 ◽

Vol 4 (2) ◽

pp. 41-45 ◽

Cited By ~ 3

Author(s):

MR Begum ◽

M Anaruzzaman ◽

MSI Khan ◽

M Yousuf

Keyword(s):

Body Weight ◽

Dairy Cattle ◽

Milk Production ◽

Rural Areas ◽

Binary Logistic Regression ◽

Cross Sectional Study ◽

Lactation Period ◽

Cross Sectional ◽

Age At First Calving ◽

Factors Affecting

A cross sectional study was conducted to observe the factors affecting the productive performance of dairy cattle from northern rural areas of Bangladesh during July and September 2013. Data of 105 cows, 85 (80.95%) from local and 20 (19.05%) cows from cross breed, were randomly selected for the study. A binary logistic regression, expressed by odds ratio with 95% confidence interval, was done to determine the association of daily milk production categorized into ? 2 and > 2 liters (L), based on median, with the significant explanatory variables of body weight, age at first calving, lactation period, vitamin use, type of floor and milking person. The result demonstrated that the probability of milk production of >2 L was 6.16, 4.5, 20.65 and 5.7 times higher from the with animal body weight of >140 kg, age at first calving of >36 m, lactation period of >8 m and vitamin use than that of body weight of 140 kg, age at first calving of ?36 m, lactation period of ? 8 m, and not vitamin used respectively. The chance of milk production of > 2 L was 0.25 and 0.22 times lower for mud floor, and owner milking than that of brick floor and gowala (professional milking person) respectively. DOI: http://dx.doi.org/10.3329/ijarit.v4i2.22646 Int. J. Agril. Res. Innov. & Tech. 4 (2): 41-45, December, 2014

Download Full-text

Analisis Faktor-Faktor Yang Mempengaruhi Produksi Susu Kambing Perah Peranakan Etawa (PE) di Desa Limpok Kecamatan Darussalam Kabupaten Aceh Besar

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v2i1.2279 ◽

2017 ◽

Vol 2 (1) ◽

pp. 127-133

Author(s):

Rini Afrida ◽

Edy Marsudi ◽

Ismayani Ismayani

Keyword(s):

Milk Production ◽

Goat Milk ◽

Dairy Goat ◽

Case Study Method ◽

Dairy Goats ◽

Factors Affecting ◽

Livestock Farm ◽

Simultaneous Test ◽

Object Of Study

ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI PRODUKSI SUSU KAMBING PERAH PERANAKAN ETAWA (PE) DI DESA LIMPOK KECAMATAN DARUSSALAM KABUPATEN ACEH BESAR (STUDI KASUS DI UD. ATJEH LIVESTOCK FARM) OLEH Rini Afrida / Agribisnis Universitas Syiah Kuala ABSTRAK Susu kambing perah merupakan komoditas yang cukup penting di Indonesia. Penelitian ini bertujuan untuk Menganalisis pengaruh jumlah pemberian pakan hijauan dan ampas tahu terhadap produksi susu kambing perah di UD. Atjeh Livestock Farm yang berada di Desa Limpok Kecamatan Darussalam Kabupaten Aceh Besar. Metode penelitian yang digunakan adalah metode studi kasus dengan objek penelitian seluruh kambing perah peranakan etawa (PE) yang memproduksi susu di UD. Atjeh Livestock Farm. Metode analisis yang digunakan dalam penelitian ini adalah Model Cobb Douglas. Hasil penelitian menunjukkan bahwa variabel jumlah pakan hijauan dan ampas tahu mempunyai pengaruh nyata baik secara serempak maupun parsial terhadap produksi susu, dimana diperoleh nilai dari uji serempak untuk Fhit = 138.415 sedangkan untuk Ftabel = 3.98, karena nilai Fhit = 138.415 Ftabel = 3.98, maka kesimpulan yang dapat diambil adalah menolak H0. Artinya variabel hijauan dan ampas tahu secara bersama – sama mempunyai pengaruh nyata terhadap produksi susu kambing perah, sedangkan dari uji parsial diperoleh nilai variabel hijauan untuk thitung = 4,016 sedangkan ttabelnya = 2,17881, karena nilai thitung= 4,016 ttabel = 2,17881, maka kesimpulan yang dapat diambil adalah menolak H0. Begitu juga untuk variabel ampas tahu diperoleh nilai untuk thitung = 2,255 sedangkan ttabelnya = 2,17881, karena nilai thitung = 2,255 ttabel = 2,17881, maka kesimpulan yang dapat diambil adalah menolak H0. Artinya variabel hijauan maupun ampas tahu mempunyai pengaruh nyata terhadap produksi susu kambing perah.ANALYSIS OF THE FACTORS AFFECTING THE PRODUCTION OF GOAT MILK DAIRY CROSSBREED ETAWA (PE) IN THE LIMPOK VILLAGE SUB-DISTRICTS OF DARUSSALAM ACEH BESAR REGENCY(A Case Study in UD. Atjeh Livestock Farm)ABSTRACT Dairy goat milk is a commodity that is quite important in Indonesia. This study aimed to analyze the influence of the number of feeding forage and pulp out of the milk production of dairy goats in UD. Atjeh Livestock Farm that are in the Limpok village sub-district of Darussalam Aceh Besar regency. The method used is the case study method with the object of study throughout the dairy goat hybrid etawa (PE), which produces milk in UD. Atjeh Livestock Farm. The analytical method used in this study is a model Cobb Douglas. The results showed that the variable amount of green feed and tofu has a real influence both simultaneously and partially to the production of milk, which gained the value of simultaneous test for Fcount = 138.415 whereas for Ftable = 3.98, because the value Fcount = 138.415 Ftable = 3.98, the conclusions that can be drawn is to reject H 0. This means that the variable forages and pulp out together have a significant effect on the milk production of dairy goats, whereas the values obtained from the partial test variable forage for tcount = 4,016 whereas ttable = 2,17881, because the value of tcount= 4,016 ttable = 2,17881, the conclusions that can be drawn is to reject H 0. Likewise for variable pulp out obtained value for tcount = 2,255 whereas ttable = 2,17881, because the value of tcount = 2,255 ttable = 2,17881, the conclusions that can be drawn is to reject H 0. This means that the variable forage or pulp out has a significant effect on the milk production of dairy goats.

Download Full-text

THE FACTORS AFFECTING MILK YIELD IN DIARY FARMING IN GREATER GUWAHATI REGION OF ASSAM

International Journal of Advanced Research ◽

10.21474/ijar01/13321 ◽

2021 ◽

Vol 9 (08) ◽

pp. 723-728

Author(s):

Heman Sarmah ◽

◽

Jnanashree Borah ◽

Tirthankar Sarma ◽

◽

...

Keyword(s):

Regression Analysis ◽

Dairy Cattle ◽

Milk Production ◽

Milk Yield ◽

Policy Maker ◽

Production Cost ◽

Relative Importance ◽

Factors Affecting ◽

Micro Level ◽

Farming Households

The production of milk is conceived of several factors and a very multifarious process. The knowledge of relative importance of the resource inputs influencing in milk production is essential for the dairy farmer for introducing desirable change in his operation at micro level and for the policy maker for formulating plans for improvements in dairy cattle productivity based on sound economic principles at the macro level (Rao, 1985).The income level of the dairy household is determined by the production of milk they produce at their farms. Generally, the income of the dairy household increases when the milk production cost decreases or when the milk production increases .For this it is essential to study the factors which directly or indirectly effect the milk production. Household samples have been selected both from the municipal wards of Guwahati Municipal Corporation area. Out of 672 dairy farming households, 201 household have been selected for the survey. Regression analysis has been used for the study of factors affecting milk production in greater Guwahati region of Assam.

Download Full-text

FAKTOR-FAKTOR YANG MEMPENGARUHI PRODUKSI SUSU SAPI PERAH KELOMPOK TANI TERNAK SAPI PERAH (KTTSP) KANIA, KABUPATEN BOGOR

AGRIBUSINESS JOURNAL ◽

10.15408/aj.v11i2.11841 ◽

2019 ◽

Vol 11 (2) ◽

pp. 148-160

Author(s):

Adam Adinegoro ◽

Edmon Daris ◽

Zulmanery Z

Keyword(s):

Linear Regression ◽

Dairy Cattle ◽

Multiple Linear Regression ◽

Milk Production ◽

Regression Models ◽

Linear Regression Models ◽

Factors Affecting ◽

Cattle Ranchers ◽

Multiple Linear Regression Models

The purpose of this study are: (1) to identify and to analyze the factors that influence milk production of dairy cattles, and (2) to determine the elasticity of milk production. This research was conducted at the Dairy cattle group KANIA, Bogor. Data were obtained from interviews and questionnaires with cattle ranchers. Multiple linear regression models and elasticity calculations were employed to analyze the data with the Excel 2007 and software for Statistical Product and Service Solution (SPSS) version 16. Results of the analysis revealed that the factors affecting milk production is labor, forages, and feed concentrates. The result of the calculation of the elasticity indicated that all production variables are elastic variables.

Download Full-text

DAMPAK KENAlKAN BARGA MINYAK GORENG TERHADAP KELAYAKAN USAHA INDUSTRI RUMAH TANGGA KERIPIK TEMPE DI KECAMATAN RAWALO KABUPATEN BANYUMAS

Agro Ekonomi ◽

10.22146/jae.18215 ◽

2017 ◽

Vol 15 (2) ◽

Author(s):

Altri Mulyani ◽

Masyhuri Masyhuri ◽

Ken Suratiyah

Keyword(s):

Production Capacity ◽

Research Area ◽

Oil Price ◽

Profit Function ◽

Factors Affecting ◽

Cooking Oil ◽

Production Frequency ◽

Unit Output ◽

Home Industries ◽

The Impact

The objectives are to know: (1) the impact of cooking oil price increasing to the feasibility of tempe chips home industry; (2) income decreasing of tempe chips home industry after cooking oil price increasing; (3)factors affecting the profit of tempe chips home industry; (4) strategy of the tempe chips home industry when the production cost increase as cooking oil price increase. The research area is Rawalo sub-district, Banyumas district. Data collected by census method of 49 tempe home industries. Analyses used are RIC ratio, 1C/Cratio, BEP production, BEP revenue, BEP price, and Unit-Output-Price Cobb-Douglas Profit Function. The results show that: (1) tempe chips home industries have to be maintained although cooking oil price increasing has increased the product's price also; (2) after cooking oil price increasing period, tempe chips home industry has decreasing income; (3) UOP Cobb-Douglas Profit Function shows that cooking oil price, soybean price, cassava powder price, production capacity, dummy variable of before and after increasing cooking oil price period affect the profit function of tempe chips home industry; (4) strategy have been practiced by tempe chips home industries tempe chips product's size, decrease the tempe chips per pack capacity, decrease the production capacity, decrease the production frequency, and add cassava in the processing of tempe making.

Download Full-text