Khuzestan Ramin Agricultural and Natural Resources University

Khuzestan, Iran

Khuzestan Ramin Agricultural and Natural Resources University

Khuzestan, Iran

Time filter

Source Type

Yeganehpur Z.,Khuzestan Ramin Agricultural and Natural Resources University | Roshanfekr H.,Khuzestan Ramin Agricultural and Natural Resources University | Fayazi J.,Khuzestan Ramin Agricultural and Natural Resources University | Beyranvand M.H.,Agricultural and Natural Resources Research Center of Iran
Revista Colombiana de Ciencias Pecuarias | Year: 2016

Background: Lori sheep is an Iranian heavy breed known for its superiority in terms of disease resistance, adaptability to the mountainous west of the country and meat production potential. Objective: to estimate and compare the inbreeding coefficient in Lori sheep, and its impact on growth traits. Methods: data and pedigree information were collected in Lorestan Agricultural and Natural Resources Research Center, west of Iran, during 2001-2010. Traits included were birth weight (BW), weaning weight (WW), 6-month weight (6MW) and 9-month weight (9MW). The inbreeding coefficient estimation was carried out through the CFC software, and quantification of individual inbreeding regression on the characteristics was conducted using The Wombat software. All animals were divided into four categories according to the inbreeding coefficients obtained from their pedigree: the first category included non-inbred animals (F = 0%); and the second, third, and fourth categories included inbred animals as 00.20, respectively. Results: inbreeding coefficients were 0.69% and 2.24% in the entire population and inbred population, respectively. Inbreeding regression for BW, WW, 6 MW and 9 MW were estimated as +4.5, -10.3, -76.3, and -77.4 g, respectively. The inbreeding trend was positive and significant for the whole population (0.215; p<0.001), but not significant for the inbred population. Conclusion: these results confirm a low level of inbreeding and suggest that direct controlled mating could be an appropriate method to avoid inbreeding depression. © 2016, Universidad de Antioquia. All rights reserved.


Yazdanpanah M.,Ramin University | Yazdanpanah M.,International Institute For Applied Systems Analysis | Yazdanpanah M.,Khuzestan Ramin Agricultural and Natural Resources University | Hayati D.,Shiraz University | And 3 more authors.
Journal of Hydrology | Year: 2014

Iran faces a serious and worsening water crisis, and water conservation by its farmers is rightly seen as crucial to any resolution. Whilst many farmers are profligate in their use of water, some are parsimonious: behavioural strategies vary and these strategies, we hypothesise, are accompanied by differing perceptions. These perceptions, we further hypothesise, are generated by the four different ways of organising - individualism, hierarchy, egalitarianism and fatalism - that are predicted by the theory of plural rationality. Informal guided interviews with 330 farmers in Boushehr Province support these hypotheses and show that both perceptions of and behaviour in relation to water are closely tied to the farmers' ways of organising which, in turn, are influenced by the socio-technological origin of their water: wells, irrigation canals, qanats. "Egalitarian" farmers are already behaving in the desired way; they are most prevalent among those who rely on wells. "Individualist" and "fatalist" farmers are profligate in their water use; they are most prevalent among those who rely on irrigation canals. The modern technology, we suggest, could be re-cast, in part, along the lines of the traditional qanat socio-technological system, so that water, at times and in places, is delivered as a common-pool good (egalitarianism) and not just in the current public good (hierarchy) or private good (individualism) modes. © 2014 Elsevier B.V.


Yazdanpanah M.,Khuzestan Ramin Agricultural and Natural Resources University | Yazdanpanah M.,International Institute For Applied Systems Analysis | Hayati D.,Shiraz University | Hochrainer-Stigler S.,International Institute For Applied Systems Analysis | Zamani G.H.,Shiraz University
Journal of Environmental Management | Year: 2014

There is a high risk of serious water shortages in Middle-East and North African countries. To decrease this threat water conservation strategies are gaining overall importance and one main focus is now on farmer's behavior. Among other dimensions it is assumed that normative issues play an important role in predicting environmental oriented intentions and actual actions. To empirically test the possible interactions the Theory of Planned Behavior was used, revised and expanded for the specific case on water management issues and applied to Iranian farmers. The results could not validate the TPB framework which emphasizes the importance of perceived behavioral control for intention and actual behavior and findings are much more in line with the Theory of Reasoned Action. Normative inclinations as well as perception of risk are found to be important for intention as well as actual water conservation behavior. Additionally, the importance and linkages of the dimensions are found to be different between sub-groups of farmers, especially between traditional water management farmers and those who already using advanced water management strategies. This raises the question if one-fits-all behavioral models are adequate for practical studies where sub-groups may very much differ in their actions. Still, our study suggests that in the context of water conservation, normative inclination is a key dimension and it may be useful to consider the role of positive, self-rewarding feelings for farmers when setting up policy measures in the region. © 2014 Elsevier Ltd.


Forouzani M.,Khuzestan Ramin Agricultural and Natural Resources University | Karami E.,Shiraz University | Zamani Gh.H.,Shiraz University
Water Policy | Year: 2013

The paper discusses the application of the Agricultural Water Poverty Index (AWPI) as an assessment tool for agricultural water in rural areas of Marvdasht County, Fars Province, Iran. Along with the global concern, water has become an increasing concern during the recent years in Iran. This paper provides an overview of the AWPI and the methodology to measure AWP by addressing the four key issues, namely practical components and indicators, sources of data, choice of formula, and choice of base period. In order to assess water scarcity at the local level, a survey was conducted using stratified random sampling to select 293 farmers working in different climates. Distinct differences were found between farmers living in different climates with regard to the AWPI score. The study revealed that all farmers were labeled as 'agricultural water poor,. Farmers with a high score on the AWPI were characterized by having more water resources, more access to water resources, better use of available water, better abilities to manage water use and low environmental factors affecting the AWP than other farmers. Finally the study identified the hot spots, most needy places, and the reasons behind the agricultural water poverty by drawing the AWP map using a Geographic Information System (GIS). © IWA Publishing 2013.


Nabavi-Pelesaraei A.,University of Tehran | Hosseinzadeh-Bandbafha H.,Bu - Ali Sina University | Qasemi-Kordkheili P.,Khuzestan Ramin Agricultural and Natural Resources University | Kouchaki-Penchah H.,University of Tehran | Riahi-Dorcheh F.,University of Tehran
Energy | Year: 2016

In this study a non-parametric method of DEA (Data Envelopment Analysis) and MOGA (Multi-Objective Genetic Algorithm) were used to estimate the energy efficiency and greenhouse gas emissions reduction of wheat farmers in Ahvaz county of Iran. Data were collected using a face-to-face questionnaire method from 39 farmers. The results showed that based on constant returns to scale model, 41.02% of wheat farms were efficient, though based on variable returns to scale model it was 53.23%. The average of technical, pure technical and scale efficiency of wheat farms were 0.94, 0.95 and 0.98, respectively. By following the recommendations of this study, 3640.90 MJ ha-1 could be saved (9.13% of total input energy). Moreover, 42 optimal units were found by MOGA. The total energy required and GHG (greenhouse gas) emissions of the best generation of MOGA were about 23105 MJ ha-1 and 340 kgCO2eq. ha-1, respectively. The results revealed that the total energy required of MOGA was less than DEA, significantly. Also, the GHG emissions of present, DEA and MOGA farms were about 903, 837 and 340 kgCO2eq. ha-1, respectively. © 2016 Elsevier Ltd.


Azizi-Shotorkhoft A.,Khuzestan Ramin Agricultural and Natural Resources University | Mohammadabadi T.,Khuzestan Ramin Agricultural and Natural Resources University | Motamedi H.,Shahid Chamran University | Chaji M.,Khuzestan Ramin Agricultural and Natural Resources University | Fazaeli H.,Animal Science Research Institute
Animal Feed Science and Technology | Year: 2016

The termite gut contains different kinds of lignin and lignocellulose degrading microbes. This study was conducted to isolate and identify termite gut symbiotic bacteria with lignocellulose-degrading potential, and evaluate their effects on the chemical composition and in vitro digestibility of wheat straw and date leaves. Termite gut contents were extracted and cultured in 9 different culture media containing lignin and lignocellulosic materials that had been prepared from water-extracted sawdust and wheat straw. Three superior bacteria capable of growing on all media, and with higher lignin peroxidase activity, were selected and subjected to molecular identification. Following this, wheat straw and date leaves were incubated with the isolated bacteria in liquid medium for 6 weeks. 16S rRNA sequence analysis showed that these isolates possessed 97, 99 and 97% similarity with Bacillus licheniformis, Ochrobactrum intermedium and Microbacterium paludicola, respectively. The highest (P. <. 0.05) dry matter (DM) loss in wheat straw and date leaves was observed following treatment with B. licheniformis. In the case of wheat straw, the organic matter (OM) and neutral detergent fiber (NDF), and for date leaves OM, NDF and acid detergent lignin (ADL) contents were not influenced by the treatments (P. >. 0.05). The greatest and lowest (P. <. 0.05) ADF content of wheat straw was observed as a result of treatment with B. licheniformis and O. intermedium, respectively. However, bacterial treatments decreased (P. <. 0.05) ADF content of date leaves when compared to the control. Acid detergent lignin content of wheat straw was decreased (P. <. 0.05) by bacterial treatments in comparisons to the control. For wheat straw, the highest and lowest (P. <. 0.05) value of crude protein (CP) was observed in the case of M. paludicola and O. intermedium treatments, respectively. For date leaves, the CP content of the control treatment was highest (P. <. 0.05) among treatments. For wheat straw, bacterial treatments enhanced (P. <. 0.05) DM, OM and ADF digestibility when compared to the control. However, highest and lowest (P. <. 0.05) CP digestibility was observed using O. intermedium and M. paludicola, respectively. For date leaves, treatment with B. licheniformis significantly increased (P. <. 0.05) digestibility of DM, OM and NDF when compared to the others. However, CP and ADF digestibility was not different (P. >. 0.05) between experimental groups. Overall, the results of this study showed that the isolated bacteria partially changed the chemical composition of wheat straw and date leaves while, they improved digestibility of nutrients. These bacteria are suitable candidates for increasing nutritive value of by-products for ruminants. © 2016 Elsevier B.V.


Azizi-Shotorkhoft A.,Khuzestan Ramin Agricultural and Natural Resources University | Sharifi A.,Khuzestan Ramin Agricultural and Natural Resources University | Mirmohammadi D.,Tarbiat Modares University | Baluch-Gharaei H.,Tarbiat Modares University | Rezaei J.,Tarbiat Modares University
Journal of Animal Physiology and Animal Nutrition | Year: 2016

This study was conducted to assess the effect of feeding corn steep liquor (CSL) on in vivo digestibility, ruminal pH, ammonia and hydrolytic enzyme activities, blood metabolites, feed intake (FI) and growth performance in fattening lambs. The CSL is a by-product of wet milling process of maize starch industry. The crude protein (CP), rumen-degradable protein (RDP), lactic acid and metabolisable energy contents of this by-product were 420, 324, 200 g/kg dry matter (DM) and 12.6 MJ/kg DM respectively. Twenty-seven male Moghani lambs were assigned randomly into three groups of nine lambs each in a completely randomised design. Three iso-energetic and iso-nitrogenous diets containing different levels (0, 50 or 100 g/kg dry matter) of CSL were offered ad libitum three times a day. Forage to concentrate ratio of the diets was 30:70. With inclusion of CSL in diet, the contents of canola meal, fish meal, wheat bran, corn grain and sugar beet pulp were decreased. The contents of DM, ash-free neutral detergent fibre (NDFom), ether extract, starch, Ca and S were numerically lower, but soluble protein, RDP and non-fibre carbohydrates were greater in the diets containing CSL in comparison with the control diet. The lambs fed with the diets containing CSL had lower [linear (L), p < 0.06] digestibility coefficients of DM and NDFom as compared to those fed with the diet free of CSL. Ruminal ammonia-N concentration increased (L, p < 0.05), but pH decreased (L, p < 0.05) with raising CSL level in diet. Carboxymethyl cellulase and filter paper-degrading activities decreased (L, p < 0.05), while proteases activity increased (L, p < 0.05) as dietary rates of CSL increased. Microcrystalline cellulase and a-amylase activities were similar among the treatments. Within blood metabolites, only urea-N concentration increased (L, p < 0.05) in the lambs receiving CSL as compared to those fed with diet without CSL. Dietary inclusion of CSL resulted in linear decreases (L, p < 0.05) in the intakes of DM, organic matter, CP, NDFom and ash-free acid detergent fibre, and average daily gain. However, the feed conversion ratio was similar among the experimental animals. Overall, feeding CSL up to 100 g/kg diet DM in lamb resulted in reductions of rumen fibrolytic microbial enzyme activities, in vivo digestibility, FI and growth performance, but rumen proteases activity increased. © 2016 Blackwell Verlag GmbH.


PubMed | Tarbiat Modares University and Khuzestan Ramin Agricultural and Natural Resources University
Type: Journal Article | Journal: Journal of animal physiology and animal nutrition | Year: 2016

This study was conducted to assess the effect of feeding corn steep liquor (CSL) on in vivo digestibility, ruminal pH, ammonia and hydrolytic enzyme activities, blood metabolites, feed intake (FI) and growth performance in fattening lambs. The CSL is a by-product of wet milling process of maize starch industry. The crude protein (CP), rumen-degradable protein (RDP), lactic acid and metabolisable energy contents of this by-product were 420, 324, 200 g/kg dry matter (DM) and 12.6 MJ/kg DM respectively. Twenty-seven male Moghani lambs were assigned randomly into three groups of nine lambs each in a completely randomised design. Three iso-energetic and iso-nitrogenous diets containing different levels (0, 50 or 100 g/kg dry matter) of CSL were offered ad libitum three times a day. Forage to concentrate ratio of the diets was 30:70. With inclusion of CSL in diet, the contents of canola meal, fish meal, wheat bran, corn grain and sugar beet pulp were decreased. The contents of DM, ash-free neutral detergent fibre (NDFom), ether extract, starch, Ca and S were numerically lower, but soluble protein, RDP and non-fibre carbohydrates were greater in the diets containing CSL in comparison with the control diet. The lambs fed with the diets containing CSL had lower [linear (L), p < 0.06] digestibility coefficients of DM and NDFom as compared to those fed with the diet free of CSL. Ruminal ammonia-N concentration increased (L, p < 0.05), but pH decreased (L, p < 0.05) with raising CSL level in diet. Carboxymethyl cellulase and filter paper-degrading activities decreased (L, p < 0.05), while proteases activity increased (L, p < 0.05) as dietary rates of CSL increased. Microcrystalline cellulase and -amylase activities were similar among the treatments. Within blood metabolites, only urea-N concentration increased (L, p < 0.05) in the lambs receiving CSL as compared to those fed with diet without CSL. Dietary inclusion of CSL resulted in linear decreases (L, p < 0.05) in the intakes of DM, organic matter, CP, NDFom and ash-free acid detergent fibre, and average daily gain. However, the feed conversion ratio was similar among the experimental animals. Overall, feeding CSL up to 100 g/kg diet DM in lamb resulted in reductions of rumen fibrolytic microbial enzyme activities, in vivo digestibility, FI and growth performance, but rumen proteases activity increased.


Qasemi-Kordkheili P.,Khuzestan Ramin Agricultural and Natural Resources University | Rahbar A.,Khuzestan Ramin Agricultural and Natural Resources University
Agricultural Engineering International: CIGR Journal | Year: 2015

Grapefruit production has increasing rate in recent years. In this study a non-parametric method of Data Envelopment Analysis (DEA) has used to estimate the energy efficiency of grapefruit production orchards in Sari region of Iran. Additionally, the impacts of energy inputs on grapefruit yield were determined. Data were collected using a face-to-face questionnaire method from 71 orchardists in winter 2014. The results showed that the total energy consumption was 49.8 GJ/ha and chemical fertilizers by 28% of this quantity had the highest share on total input energy. The results of CCR and BCC models of DEA showed that from total of 71 orchardists, only 21 orchards were technically efficient by efficiency score of one and 43 orchards were pure technical efficient. The average of technical efficiency and pure technical efficiency scores calculated as 0.94 and 0.86, respectively. The results of Cobb-Douglas production function showed that chemical fertilizer had the highest impact on yield level among all inputs. Additionally, the impact of indirect and direct energy in grapefruit production was significant at a 1% probability level with 0.84 and 0.89 regression coefficients, respectively. © 2015, Int. Comm. of Agricultural and Biosystems Engineering. All rights reserved.


Kheirabadi K.,Khuzestan Ramin Agricultural and Natural Resources University | Alijani S.,University of Tabriz
Archiv Tierzucht | Year: 2014

For genetic dissection of milk, fat, and protein production traits in the Iranian primiparous Holstein dairy cattle, records of these traits were analysed using a multitrait random regression test-day model. Data set included 763 505 test-day records from 88 204 cows calving since 1993. The (co)variance components were estimated by Bayesian method. The obtained results indicated that as in case of genetic correlations within traits, genetic correlations between traits decrease as days in milk (DIM) got further apart. The strength of the correlations decreased with increasing DIM, especially between milk and fat. Heritability estimates for 305-d milk, fat, and protein yields were 0.31, 0.29, and 0.29, respectively. Heritabilities of test-day milk, fat, and protein yields for selected DIM were higher in the end than at the beginning or the middle of lactation. Heritabilities for persistency ranged from 0.02 to 0.24 and were generally highest for protein yield (0.05 to 0.24) and lowest for fat yield (0.02 to 0.17), with milk yield having intermediate values (0.06 to 0.22). Genetic correlations between persistency measures and 305-d production were higher for protein and milk yield than for fat yield. The genetic correlation of the same persistency measures between milk and fat yields averaged 0.76, and between milk and protein yields averaged 0.82. © 2014 by the authors.

Loading Khuzestan Ramin Agricultural and Natural Resources University collaborators
Loading Khuzestan Ramin Agricultural and Natural Resources University collaborators