نتایج جستجو برای: bulls
تعداد نتایج: 4288 فیلتر نتایج به سال:
The majority of American Oystercatchers (Haematopus palliatus) in South Carolina make their nests on narrow, elevated mounds of oyster shells deposited naturally along the edges of bays by storms or formed artificially by boat wakes along the Atlantic Intracoastal Waterway (AICW). I compared reproductive success of American Oystercatchers nesting along the AICW with those nesting on naturally f...
the holstein bulls (n=50) were genotyped for bovine lymphocyte antigen (bola-drb3.2) alleles by polymerase chain reaction and restriction fragment length polymorphism (pcr-rflp). genomic dna was extracted from bull semen using phenol-chloroform method. a two-step pcr was conducted in order to amplify a 284 base-pair fragment of the target gene. amplicons were digested by rsai, haeiii and bstyi ...
on to a heavy wooden mill which is revolved by the bulls moving in a circle round the mill. The old man was bending over the crushing blocks to remove sugar-cane debris when his long hair got undone and was caught in the mill. The bulls continued to move round in a circle which resulted in his hair being wound into the mill. He was dragged round the mill and fruitlessly tugged to get free. His ...
The aim of this study was to compare the responses in fattening performance and meat composition for high-concentrate diets rich in either starch and lipids (especially omega-3 fatty acids) or fibrous by-products. A total of 140 Charolais bulls (initially 319 ± 27 kg BW) were allocated to 3 high-concentrate diets and were fattened for up to 18 mo. The diet treatments included concentrate mixtur...
concentrations of major nutritional and trace elements (ca, p, mg, na, k, fe, zn, cu, mn, se,co, cr, ni, sr, ba) and toxic heavy metals (cd, pb) were analyzed in the meat of limousin, red angus andsalers bulls. elements were determined using inductively coupled plasma emission atomic spectrometry. theconducted research showed that the meat of compared breeds differed in the concentrations of cu...
the objective of this work was to determine the effect of sex, breed and birth season of calves on intensity of mllt (musculus longissimus lumborum et thoracis) area changes and development of the selected body parts in bulls and heifers of blonde d´aquitaine (ba) cattle during rearing period. two generations of bulls (n=63) and heifers (n=68) of blonde d´aquitaine (n=61) and crossbreds c×ba (c...
a pedigree file of 382831 holstein cows and bulls, collected from herds registered by animal breeding center of iran during 1967 to 1999, was used to calculate the inbreeding coefficient. the mean inbreeding coefficient for the whole population (male and female), on a base year of 1946, was 0.184%. the means for cows (94 percent of the whole population) and bulls (6 percent of the whole populat...
As a foundation for understanding the diet of African savanna elephants (Loxodonta africana), adult bulls and cows were observed over an annual cycle to determine whether harvesting (Pt ), chewing (Ct ) and handling times (Ht ) differed across food types and harvesting methods (handling time is defined as the time to harvest, chew and swallow a trunkload of food). Bulls and cows were observed 1...
This work aimed to study the correlations between the physical characteristics of semen, sperm morphology and the biochemical integrity of the plasmatic membrane of raw sperm in young Nelore bulls (Bos taurus indicus). A total of 420 bulls between 18 and 22 months of age were examined for breeding soundness according to the criteria established by the Brazilian College of Animal Reproduction. A...
The freezability of semen collected during the low (May-July) and the peak (September-November) breeding seasons from 18 Nili-Ravi buffalo bulls of young (3-4 years), adult (6-8 years) and old ( 1215 years) age groups was studied. After extension in lactose.:..fructose-egg-yolk-glycerol extender, semen samples were frozen and stored in liquid nitrogen. Post-thaw motili�y and liveability of sper...
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