A lame dog     

WL PORGES  ADJ WATSON 《Australian veterinary journal》1996,74(1):14-15

  相似文献   

Fine mapping of stable QTLs related to eating quality in rice (Oryza sativa L.) by CSSLs harboring small target chromosomal segments     

Jingjing Li  Wenwei Zhang  Hongkai Wu  Tao Guo  Xiaolu Liu  Xiangyuan Wan  Jiansheng Jin  Than Thi Thu Hanh  Nguyen Thi Nhu Thoa  Mingjiang Chen  Shijia Liu  Liangming Chen  Xi Liu  Jiankang Wang  Huqu Zhai  Jianmin Wan 《Breeding Science》2011,61(4):338-346

Amylose content (AC) and viscosity profile are primary indices for evaluating eating and cooking qualities of rice grain. Using chromosome segment substitution lines (CSSLs), previous studies identified a QTL cluster of genes for rice eating and cooking quality in the interval R727–G1149 on chromosome 8. In this study we report two QTLs for viscosity parameters, respectively controlling setback viscosity (SBV) and consistency viscosity (CSV), located in the same interval using rapid viscosity analyzer (RVA) profile as an indicator of eating quality. Previously reported QTL for AC was dissected into two components with opposite genetic effects. Of four QTLs, qCSV-8 and qAC-8-2 had stable genetic effects across three and four environments, respectively. qSBV-8, qCSV-8 and qAC-8-1 partly overlapped, but were separated from qAC-8-2. Based on data from an Affymetrix rice GeneChip, two genes related to starch biosynthesis at the qAC-8-2 locus were chosen for further quantitative expression analysis. Both genes showed enhanced expression in sub-CSSLs carrying the target qAC-8-2 allele, but not in sub-CSSLs without the target qAC-8-2 allele, indicating their possible role in rice quality determination. Molecular markers closely linked to the two stable QTL provide the opportunity for marker-assisted selection (MAS) in breeding high quality rice.  相似文献   

Preparation of oligoalginate plant growth promoter by γ irradiation of alginate solution containing hydrogen peroxide     

Luan le Q  Ha VT  Uyen NH  Trang le TT  Hien NQ 《Journal of agricultural and food chemistry》2012,60(7):1737-1741

Degraded alginate compounds with molecular weights of 7-26, 40-77, or 11-26 kDa were obtained by γ irradiation, hydrogen peroxide (5% H(2)O(2)) treatment, or a combination treatment involving ionizing radiation and H(2)O(2), respectively. The 14 kDa oligoalginate, prepared by the combined method, promoted the growth of mustard greens and lettuce at an optimal concentration of 75 mg/L. The growth promotion effects of the oligoalginate prepared by γ irradiation in the presence of H(2)O(2) were statistically equivalent to those of the oligoalginate prepared by γ irradiation only. The combination of γ irradiation and H(2)O(2) reduced the required irradiation dosage by a factor of 9 relative to the oligoalginate produced by γ irradiation only. The combination treatment (γ irradiation/H(2)O(2)) may be carried out on a large scale at low cost to produce oligoalginate for use as a plant growth promoter in agricultural industries.  相似文献   

Biochar co-applied with organic amendments increased soil-plant potassium and root biomass but not crop yield     

Farrar  Michael B.  Wallace  Helen M.  Xu  Cheng-Yuan  Joseph  Stephen  Dunn  Peter K.  Nguyen  Thi Thu Nhan  Bai  Shahla Hosseini 《Journal of Soils and Sediments》2021,21(2):784-798

Journal of Soils and Sediments - Biochar can improve soil nutrient retention and alleviate salinity; however, use is not widespread due to cost. Biochar is usually co-applied with a full-rate of...  相似文献   

The relationship between the prevalence of uterine lesions and the use of medroxyprogesterone acetate for canine population control     

AG VON BERKY  WL TOWNSEND† 《Australian veterinary journal》1993,70(7):249-250

SUMMARY The prevalence of uterine disease was established during desexing of 175 bitches in the Torres Strait and Cape York, 42 of which had been treated with injectable medroxyprogesterone acetate (MPA) for oestrus postponement. The prevalence of uterine lesions was 45% for treated bitches, 5% for untreated bitches, and 14.9% for the sample population. A highly significant relationship (P<0.01) between MPA treatment and uterine lesions was established. A significant association (P<0.05) between age (>2 years old) and uterine lesions was found, most likely attributable to a significantly higher proportion (P<0.01) of MPA-treated bitches in the older population. There was no significant difference in the effect of MPA on the prevalence of uterine lesions between older and younger bitches. There was no effect of parity on the prevalence of uterine lesions.  相似文献   

Evaluation of the Karras Spermdensimeter in Relation to the Neubauer Counting Chamber for Sperm Concentration Measurement in Boar Semen     

WL Vianna  DG Bruno  A Namindome  AC de Campos Rosseto  RC Barnabé  A de Sant'' Anna Moretti 《Reproduction in domestic animals》2007,42(5):466-470

The correct measurement of spermatic concentration in boar semen is one of the basic tasks routinely performed at the Swine Artificial Insemination Center (CIAS). This article explains two experiments whose objectives were: Experiment 1: This trial had two objectives: (1) to evaluate the precision of the spermdensimeter (SPM) with relation to the Neubauer count chamber (CN) which is considered the standard technique in the field and (2) to correct the scale on the SPM table. Experiment 2: This trial also had two objectives: (1) to evaluate the time and repetitions required in the SPM and (2) to compare the SPM adjusted table produced in Expt 1 with the SPM standard table. The methods in Expt 1 were used to measure total spermatic concentration in 141 boar ejaculates. The average spermatic concentrations (10(6) spermatozoids/ml) and average dose number were 229.1 and 22.6 for CN, and 283.6 and 28.0 for SPM. These results indicate that the SPM has a tendency to overestimate spermatic concentration with relation to the CN. The SPM produced a smaller coefficient of variation and needed lesser examination time than the CN (p < 0.05). The SPM adjusted table created in Expt 1 produced similar results as the SPM and CN standard tables (2.96 billion live spermatozoids/dose vs 2.36 billion live spermatozoids/dose). Incorporation and evaluation of supplemental data from other CIAS regarding the use of the SPM adjusted table in the field entitled 'Adjusted Table for Karras Spermdensimeter LPS-FMVZ-USP' would be valuable to prove its efficiency.  相似文献   

Different Doses of Porcine Luteinizing Hormone in Precocious Puberty Induction in Gilts     

RD Gama  WL Vianna  ME Pinese  A de  Campos Rosseto  A de  Sant''Anna Moretti 《Reproduction in domestic animals》2005,40(5):433-435

The use of hormonal protocols in puberty induction and synchronization of oestrus has lead to an increase in the efficiency of replacement gilts. The aim of this study was to evaluate different doses of porcine LH in precocious puberty induction and oestrus synchronization in a homogeneous group of gilts. Sixty-seven homogeneous prepubertal gilts (Camborough 22) at 137 +/- 4 days of age and 87 +/- 7 kg were treated with three different hormonal protocols: T1--600 UI of equine chorionic gonadotrophin (eCG; Novormon) and after a 72-h period 5 mg of LH (Lutropin); T2--600 UI of eCG and a 72-h period 2.5 mg of LH; T3--600 UI of eCG and a 72-h period 1.25 mg of LH. The ovaries were examined at slaughter, on day 6 after the hormonal treatment. There were no statistical differences (p > 0.05) between the different LH doses in the percentage of the detected oestrus (T1 = 42.85%; T2 = 60.87%, T3 = 52.18%), oestrus duration (T1 = 41.44 +/- 16.30 h; T2 = 48.57 +/- 16.29 h, T3 = 39.33 +/- 11.42 h), number of corpora lutea (T1 = 9.61 +/- 5.43; T2 = 9.86 +/- 3.32, T3 = 8.13 +/- 5.52) and percentage of animals presenting ovarian cystic degeneration (T1 = 33.33%; T2 = 39.13%, T3 = 39.13%). The T2 (2.5 mg of LH) presented the lowest dispersion (p < 0.05) of the LH-ovulation interval (T1 = 37.17 +/- 4.07 h; T2 = 38.26 +/- 2.84 h; T3 = 36.25 +/- 5.69 h). The LH dose reduction to 2.50 and 1.25 mg presented equal results with the recommended dose of 5.0 mg, and could be used in the precocious induction of oestrus in gilts. The 2.5-mg LH dose showed the lowest dispersion of ovulation and it can be used in fixed-time artificial insemination programmes.  相似文献   

Evaluation of techniques for detection of small trematode eggs in faeces of domestic animals     

Anh NT  Phuong NT  Ha GH  Thu LT  Johansen MV  Murrell DK  Thamsborg SM 《Veterinary parasitology》2008,156(3-4):346-349

This study was conducted to evaluate techniques for detection of small trematode eggs in faeces of dogs, cats and pigs. Faecal samples from dogs (n=80), cats (n=35) and pigs (n=114) were examined by Kato-Katz technique (KK), formalin-ether sedimentation technique (FE) and a method of combining: filtration, sedimentation and centrifugation, developed at DBL - Centre for Health Research and Development (former Danish Bilharziasis Laboratory) (DBL). Necropsy was performed on 38 dogs, 25 cats and 16 pigs and was considered as a gold standard method for evaluation of the techniques. The results showed 100% specificity for the three techniques. Lower sensitivity was seen for the KK-technique in dog samples in comparison to that for DBL- and FE-technique. The sensitivity of the three techniques was similar in cats and pigs. Based on these findings and practical issues, DBL-technique was chosen as most suitable because the eggs were easily detected and quantified. No toxic chemicals or special equipment were required in comparison with FE-technique that needs ether solution and thus fume cupboards which are often unavailable in local veterinary centres in Vietnam and other developing countries.  相似文献   

Transmission of Tomato chlorotic dwarf viroid by Myzus persicae assisted by Potato leafroll virus     

Võ  Thi Thu  Dehne  Heinz-W.  Hamacher  Joachim 《植物病害和植物保护杂志》2018,125(3):259-266

Journal of Plant Diseases and Protection - In this study, we have shown Myzus persicae transmissibility of Tomato chlorotic dwarf viroid (TCDVd) by exposing Potato leafroll virus (PLRV) plus TCDVd...  相似文献   

Social differentiation revisited: A study of rural changes and peasant strategies in Vietnam     

Tran Thi Thu Trang 《Asia Pacific viewpoint》2010,51(1):17-35

This article analyses the processes of transformation and differentiation since the 1950s in a Vietnamese rural village, hereafter called Chieng Hoa. ¹ It examines how radical changes in political discourse and economic policies at the national level have affected the welfare and social relations of villagers and how the latter have in turn coped, resisted, as well as shaped such structural changes. Using concrete life stories of local people, the article identifies the winners and losers in this transformation process, the trajectories households or individuals have taken to arrive at their current positions, and the strategies that they are adopting for the future. It demonstrates that differentiation in Chieng Hoa implies changes in social relations, including but not limited to relations of production, and that even within this single locality, differentiation can take various forms and processes over time, whether specific to or cutting across changes in macro‐policies. The article also reveals that in the often perceived equal collectivisation, inequalities still existed and became causes of differentiation in the subsequent decollectivisation period. However, while conditions for a permanent differentiation were present, such process has failed to materialise in the current integration period. Differentiation has become more unpredictable as past winners can lose out due to unstable market conditions.  相似文献