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2024年11月5日，美国杜克大学尼古拉斯环境学院杰出教授Oren Ram应邀到访中国林科院生态所，并作题为“Mechanisms regulating tree water uptake in a patchy woodland-grass system and consequences to net ecosystem carbon exchange:Setting limits to man...
Kinetics of hydrogen peroxide generated from live and dead ram spermatozoa and the effects of catalase and oxidase substrates addition
reactive oxygen species ram antioxidant
2016/1/29
The generation of hydrogen peroxide (H2O2) by ram spermatozoa (spz) was measured using a flurometric assay with 10-acetyl-3,7-dihydroxyphenoxazine agent as a probe for H2O2 detection. The kinetics of ...
Protective effects of the antioxidants curcumin, ellagic acid and methionine on motility, mitochondrial transmembrane potential, plasma membrane and acrosome integrity in freeze-thawed Merino ram sperm
curcumin ellagic acid methionine
2016/1/29
The aim of this study was to determine the effects of curcumin, ellagic acid and methionine on sperm parameters following the freeze-thawing of Merino ram semen. Ejaculates were collected via an artif...
Demonstration of the effect of epidermal growth factor on ram sperm parameters using two fluorescent assays
viability motility membrane integrity
2015/4/7
ABSTRACT: The goal of this study was to examine the effect of epidermal growth factor (EGF) on sperm viability using two fluorescent techniques and to analyze the obtained results in relation to sperm...
Wool characteristics of crossbred Baghdadi wild ram and Iran native sheep
Wool Characteristics Farahani Sheep Crossbreeding
2013/2/28
Twenty mid side wool samples of crossbred sheep were collected and their characteristics were determined. Data analyzed by SAS software and Duncan’s multiple range tests was used for comparison of mea...
The Effects of Different Concentrations of Glycine and Cysteine on the Freezability of Moghani Ram Spermatozoa
Cryopreservation Glycine Cysteine Moghani Ram Spermatozoa
2016/5/4
Two experiments were designed to evaluate the effects of the amino acids glycine and cysteine on cryopreservation of ram spermatozoa. After primary evaluation of collected ejaculates, the semen sample...
Renal and Epididymal Infarctions Associated With Chronic Obstructive Urolithiasis in a Suffolk Ram
Urolithiasis infarcts renal epididymis ruminants
2009/1/19
A 2-year-old, Suffolk ram with ruptured urethra due to complete obstruction by calculi was treated by tube cystostomy. The surgical procedure was successful in bypassing the obstruction; however the p...
Effect of Methionine Supplementation on Performance and Carcass Characteristics of Awassi Ram Lambs Fed Finishing Diets
Ram Lambs Methionine Digestibility Carcass Characteristics
2016/4/27
The objective of this study was to evaluate the effects of ruminally-protected methionine supplementation (0, 7, or 14 g/head/d) on nutrient intake, digestibility, growth performance, carcass, and mea...
Ram Mating Behaviour under Different Social Conditions
Mating Ram Social Condition Ejaculation Mount
2016/4/25
The present study was conducted to investigate the attributes of ram sexual behaviour under different social conditions. Six intact rams and eight overiectomized ewes were used in this experiment. Ewe...
CRYOPRESERVATION OF RAM SPERM FROM AUTOCHTHONOUS BREEDS DURING A NON-MATING SEASON
Autochthonous rams breeds sperm cryopreservation
2010/12/3
It is possible to collect and successfully cryopreserve ejaculates in a non-mating season from rams of the autochthonous breeds Karakachan, Cooper-red Shumen and Karnobat-local, raised in Bulgaria. St...
STIMULATION OF SEXUAL REFLEXES OF ABORIGINAL RAM BREEDS DURIN THE NON – MATING SEASON
sexual activity and reflexes semen
2010/12/1
The aim of the present study is to induce the sexual activity and to attain ejaculation during non-mating season in aboriginal ram breeds bred in Bulgaria. The possibility is discussed to use these ra...
DETECTION OF PLASMA MEMBRANE PHOSHATIDYLSERINE TRANSLOCATION IN RAM SPERMATOZOA AFTER IN VITRO TREATING WITH DEXAMETAZONE
spermatozoa plasma membrane phosphatidylserine Annexin V
2010/12/1
In vitro induced apoptosis by dexamethazone treating of ram spermatozoa provoked the phospatidylserine exposure which is mainly localized on sperm tail region of plasma membrane and is correlated nega...
ANALYSIS OF PLASMA MEMBRANE INEGRITY BY USING OF FLUORESCEIN LABELED ANNEXIN V AND ITS RELATIONSHIP TO MOTILITY AND VIABILITY OF RAM SPERM AFTER CRYOPRESERVATION
cryopreservation phosphatidylserine Annexin V.
2010/12/1
The present study was conducted to detect sperm apoptosis in fresh, capacitated and frozen ram semen and to determine its relationship with other seminal parameters as motility and viability. The cryo...
Development of testicular dimensions and size, and their relationship to age and body weight in growing Kivircik (Western Thrace) ram lambs
Kivircik lamb testimetrical parameters environmental effects
2015/6/1
Forty-seven Kivircik ram lambs, aged 2 months, raised and managed under an intensive system were used to measure the development of testis diameter and length, and scrotum circumference, length and vo...
Mating and Incidental Activities of Ram (Ovis aries) When Exposed to Ewe(s) and Competitor Ram in Pen Mating Condition
Ram Behaviour Dominant Guarding Audience Ewe
2016/4/19
An attempt was made to analyze the factors affecting mating performance of rams in pen mating systems. Due to many types of social interactions, mating performance of rams may decrease or increase. Si...