[PDF] Top 20 Probability of pregnancy in beef heifers
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Probability of pregnancy in beef heifers
... allow heifers to reach the minimum weight at the beginning of the ...weaning, heifers can be managed in areas with higher availability and quality of pasture to gain enough weight to ... See full document
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Effects of roof modifications on growth performance and physiological changes of crossbred beef heifers (Bos indicus)
... effects of heat stress on animal production are well known and have been investigated and documented for a number of ...years. In pioneering research at the Climatology Laboratory in Missouri, ... See full document
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Terminação a pasto de novilhas de corte sob efeito de imunocastração / Pasture finishing of beef heifers under the effect of immunocastration
... objective of the work was to evaluate the productive performance and economic viability of immunocastrated heifers finished on ...municipality of São Gabriel do Oeste - MS. Forty Nellore ... See full document
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Development and reproductive performance of Hereford heifers of different frame sizes up to mating at 14-15 months of age
... pasture in these months. In intensive systems, the assurance of more food is strongly necessary to get effective results, because it is impossible to be safe based only on pastures, improved or ... See full document
9
Energy sources and supplementation levels for beef heifers raised during the dry season
... principle of pasture supplementation is to give catalytic doses of nutrients that maximize the use of basal substrate, in this case, the ...effects of replacement of the pasture ... See full document
8
Luis Orlindo Tedeschi1 , Danny Gene Fox2 , Mozart Alves Fonseca 1,3 , Luigi Francis Lima Cavalcanti 1,4
... developed in Karoline (Danfær et ...model of a lactating cow that was developed for feed evaluation for teaching and research purposes in the Nordic countries (Danfær et ...composed of two ... See full document
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Ingestive behavior, performance and forage intake by beef heifers on tropical pasture systems
... difficult in the vegetative stage due to the low bulk density of forage components, while at the flowering stage, an increase of stems and dead material was observed in the 10-20 cm ...evident ... See full document
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Performance and feed intake of beef heifers on rotational grazing of natural grassland receiving protein and energy supplement in cool season
... 7% of DM limit growth of rumen microorganisms changing feed digestibility and ...recorded in this trial are above such CP- limiting values, which could indicate that the observed ADG are not only due ... See full document
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Performance of beef heifers supplemented with extruded fat on italian ryegrass pasture
... readings in each ...inflorescence of ryegrass and other species. The samples were dried in a forced air circulation oven at 55°C, until constant ... See full document
7
Effects of two estradiol esters (benzoate and cypionate) on the induction of synchronized ovulations in Bos indicus cows submitted to a timed artificial insemination protocol
... studies in which the adminis- tration of EB to beef cows (Bos taurus) or EC to crossbred beef heifers promoted LH surges at approx- imately ...result of the distinct ... See full document
7
Biomass flows and defoliation patterns of alexandergrass pasture grazed by beef heifers, receiving or not protein salt
... species in cropping areas, is adequate for grazing management (COSTA et ...effects of these supplements, because of supplying higher rumen degradable protein, appears to increase total dry matter and ... See full document
6
Short Communication Risk analysis and probability of return on invested capital in an intensive beef cattle production system in Minas Gerais, Brazil
... concept of animal unit (AU) was utilized as one mature animal (1,000 lb (450 kg) or equivalent) to compare the animal ...data of productivity and cost were monthly collected from January 2004 to October ... See full document
6
Characterization of biological types of cattle: indicator traits offertility in beef cows
... Hereford heifers are born with approximately 100,000 follicles in their combined ovaries, and there was large variation among heifers in the number of follicles present at birth ... See full document
6
Weight gain and control of endo- and ectoparasites of beef heifers treated with allopathic, herbal and homeopathic drugs
... area of Brachiaria brizantha, which was maintained under grazing before the start of the experiment, was divided into 15 paddocks of four hectares ...May of 2010 through April of 2011 ... See full document
9
Ingestive behavior and displacement patterns of beef heifers on Italian ryegrass pasture
... set of daily activities of feeding behavior, the mechanisms that regulate the process of grazing include times the animal will show preference for certain sites, which involve a number of ... See full document
8
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil
... total of 29.12% of calves positive for ...analysis. In endemic conditions, the oocytes may be found in the pastures and in the ...species of the region favor the maintenance ... See full document
5
Replacement of soybean meal by cottonseed meal 38 in multiple supplements for grazing beef heifers
... use of the neutral detergent fiber (NDF) of the low quality basal forage, it was verified that ...28.65% of this protein was lowly available for the animal, in other words, in insoluble ... See full document
8
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter
... (ROT). In the CONT were used two areas with 4.9ha each and in the ROT were used two areas with ...one in eight paddocks of 0.7ha. In the ROT treatment, the rotational criteria between ... See full document
6
The effect of bovine interferon-alpha I1 on pregnancy rate in heifers.
... metrial receptors. The genes for the trophob- last interferons and the related interferon-a11 possess dis- tinct 5‘-promoter and 3’4anking sequences. Im- provement of survival[r] ... See full document
9
Efficiency of the use of ryegrass by heifers in response to the receival of supplement
... number of leaf blades fully expanded and in expansion, besides their condition (intact or ...removal of leaf blades (INT ratio of the removed leaf length), the grazed leaf blades were ... See full document
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