Pyothorax in a Friesian bull     

MW McLENNAN  MR McGOWAN 《Australian veterinary journal》1995,72(3):115-116

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Isolation of Leptospira interrogans serovars hardjo and zanoni from a dairy herd in north Queensland     

CS McCLINTOCK  MR McGOWAN  BG CORNEY  J COLLEY  L SMYTHE  M DOHNT  M WOODROW 《Australian veterinary journal》1993,70(10):393-393

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REPLY     

MR ALDERTON 《Australian veterinary journal》1993,70(12):459-460

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Improved feed intake and body weight change in sheep treated with dexamethasone at entry into pens or feedlots     

NR ADAMS  MR SANDERS 《Australian veterinary journal》1992,69(9):209-213

Treatment with the synthetic glucocorticoid dexamethasone sodium phosphate increased the feed intake of sheep within 24 h. A single treatment with the longer-acting compound dexamethasone trimethylacetate had a slower effect, but resulted in improved feed intake and enhanced body weight gain over a period of 7 to 14 days. Treatment was effective in sheep housed individually and in sheep penned in groups. The improvement in body weight gain disappeared 15 to 20 days after a single treatment, but in most studies treated sheep had less variability in weight change than untreated sheep at this time. A statistically significant increase in body weight gain was observed in 8 of 11 trials; in the other 3 trials, it appeared that the feed intake of the untreated sheep was already maximal. Wethers treated with dexamethasone trimethylacetate on arrival at an assembly point for live export arrived in the Middle East 23 days later with a lower mean weight loss, partly because fewer sheep lost a significant amount of weight.  相似文献   

Effects of supplementing broiler diets with coriander seed powder on growth performance,blood haematology,ileum microflora and economic efficiency     

Ayman E. Taha  Saber S. Hassan  Ramadan S. Shewita  Ahmed A. El‐seidy  Mohamed E. Abd El‐Hack  El-sayed O.S. Hussein  Islam M. Saadeldin  Ayman A. Swelum  Mohamed A. El‐Edel 《Journal of animal physiology and animal nutrition》2019,103(5):1474-1483

A total of 480 one‐day‐old Arbor Acres broiler chicks were randomly assigned to four dietary groups, each including six replicates (n = 20/replicate). Broilers in the first group (G1) were fed a basal diet without any additives (control). Broilers in groups 2, 3 and 4 (G2, G3 and G4) were fed a basal diet supplemented with 0.1%, 0.2% and 0.4% coriander (Coriandrum sativum L.) seed powder (CSP) respectively. Feeding trials lasted for 42 days, and after that growth, carcass traits, haematological parameters, gut microbiota and economic efficiency (EE) were evaluated. Final body weight (FBW), total weight gain (TWG), total feed intake (TFI) and red blood cell (RBC) counts of broilers in the G4 and G3 treatment groups were significantly higher (p < .05) compared with broilers in the G1 treatment group. The feed conversion ratio (FCR) was better (p < .05) in the G4 treatment group (1.72) than in the G1 treatment group (1.84). Broilers in CSP treatment groups had significantly higher haemoglobin (Hb) concentrations, packed cell volume (PCV) and platelet counts, and had lower (p < .05) Escherichia coli and Clostridium perfringens counts compared with broilers in the G1 treatment group. Dressing, liver, pancreas, bursa and thymus percentages were higher (p < .05) in broilers in the G4 (70.30, 3.18, 0.31, 0.10 and 0.32% respectively) treatment group, compared with broilers in the control (G1) group (66.57, 2.37, 0.23, 0.04 and 0.21% respectively). Broilers in treatment groups G4 and G3 had lower percentages of abdominal fat and lower total bacterial counts (p < .05) than broilers in treatment groups G2 and G1. The highest economic efficiency (EE) was found in treatment group G4, and EE in this group was 13.06% greater than in the control (G1) group.  相似文献   

Influence of green grass-based diets on growth and reproductive performance in dairy heifers     

Habib  M.R.  Rashid  M.H.  Islam  M.A.  Majumder  S.  Islam  K.M.S.  Ahmed  S.  Alam  M.S.  Vargas-Bello-Pérez  E. 《Tropical animal health and production》2018,50(4):889-895

Tropical Animal Health and Production - The objective of this study was to monitor the changes in growth, dry matter intake, and blood profiles (nutrition and reproductive hormones) of dairy...  相似文献   

Efficacy of using previously used controlled internal drug release (CIDR) insert on the reproductive performance,hormone profiles and economic measures of sheep          下载免费PDF全文

Ayman Abdel‐Aziz Swelum  Islam M. Saadeldin  Abdullah F. Moumen  Mohamed A. Ali  Hany Ba‐Awadh  Abdullah N. Alowaimer 《Reproduction in domestic animals》2018,53(5):1114-1122

This study was conducted using 120 multiparous Awassi ewes during the breeding season to compare the effects of using previously used controlled internal drug release (CIDR) on the hormone profiles, reproductive performance and economic measures of ewes. Ewes were randomized to receive one of five previously used CIDR (previously used for 6, 12, 18, 24 or 30 days) or the new CIDR as a control for 6 days (CIDR6, CIDR12, CIDR18, CIDR24, CIDR30, and CIDR0 [control], respectively). Blood samples were collected on four occasions, at the time of CIDR insertion, after 3 days of insertion, and at the time of withdrawal and insemination. Serum estradiol (E2) and progesterone (P4) concentrations were measured. Timed insemination was performed 48 hr post‐CIDR withdrawal. Pregnancy was diagnosed by ultrasonography 23 days after insemination and confirmed on day 35. The heat detection rate was significantly (p < 0.05) higher in the CIDR0 and CIDR6 groups than in the CIDR18 and CIDR30 groups. The total pregnancy rate and fecundity were significantly (p < 0.05) higher in the CIDR6 group than in other groups. P4 level was significantly (p < 0.05) higher in the CIDR0 group than in the CIDR30 group at the time of removal. At each time point, the E2 level was significantly (p < 0.05) higher in the CIDR6 group than at the other groups. The total variable cost, total cost, return and net profit were higher in the CIDR6 and CIDR0 groups than in the other groups. In conclusion, although previously used CIDRs are efficient at synchronizing oestrus in ewes, the duration of previously usage significantly affected the reproductive parameters and economic profit. CIDRs previously used for 6 days and new CIDRs provided the highest fertility and fecundity rates, besides return and net profit. Economically, it is not advisable to use CIDRs that previously used for 12 days or more.  相似文献   

Responses of black spruce (Picea mariana) and tamarack (Larix laricina) to flooding and ethylene     

Islam MA  MacDonald SE  Zwiazek JJ 《Tree physiology》2003,23(8):545-552

Black spruce (Picea mariana (Mill.) BSP) and tamarack (Larix laricina (Du Roi) K. Koch) are the predominant tree species in the boreal peatlands of Alberta, Canada, where low nutrient availability, low soil temperature and a high water table limit their growth. Effects of flooding for 28 days on morphological and physiological responses were investigated in greenhouse-grown black spruce and tamarack seedlings in a growth chamber. Flooding reduced root hydraulic conductance, net assimilation rate and stomatal conductance, and increased water-use efficiency (WUE) and needle electrolyte leakage in both species. Although flooded black spruce seedlings maintained higher net assimilation rates and stomatal conductance than flooded tamarack seedlings, flooded tamarack seedlings were able to maintain higher root hydraulic conductance than flooded black spruce seedlings. Needles of flooded black spruce developed tip necrosis and electrolyte leakage after 14 days of flooding, and these symptoms were subsequently more prominent than in needles of flooded tamarack seedlings. Flooded tamarack seedlings exhibited no visible injury symptoms and developed hypertrophied lenticels at their stem base. Application of exogenous ethylene resulted in a significant reduction in net assimilation, stomatal conductance and root respiration, whereas root hydraulic conductivity increased in both species. Thus, although flooded black spruce seedlings maintained a higher stomatal conductance and net assimilation rate than tamarack seedlings, black spruce did not cope with the deleterious effects of prolonged soil flooding and exogenous ethylene as well as tamarack.  相似文献   

Antimicrobial and cytotoxic constituents of Loranthus globosus   总被引：2，自引：0，他引：2  

Sadik G  Islam R  Rahman MM  Khondkar P  Rashid MA  Sarker SD 《Fitoterapia》2003,74(3):308-311

(+)-Catechin, 3,4-dimethoxycinnamyl alcohol and 3,4,5-trimethoxycinnamyl alcohol were isolated from the barks of Loranthus globosus. All compounds showed significant antimicrobial and cytotoxic activities.  相似文献   

树木-水稻农林系统中害虫的侵害     

K. K. Islam G. M. M. Rahman A. T. M. Rafiqul Hoque 《林业研究》2006,17(1):44-46

本文比较研究了10种水稻害虫在3个树种(Akashmoni,Jhau和Albida)与稻子混栽的农-林复合生态系统中的发生情况,通过3个树种的冠幅大小、透光率以及害虫发生程度相比较,提出农-林复合生态系统中,水稻害虫的发生与树冠的透光率呈密切的负相关关系。  相似文献