| This result suggests that Africanization could have started prior to 1993 through matings of migrant drones with resident European queens. |
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| Breed groups were managed separately, and matings were performed by artificial insemination and natural service. |
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| In multiple-male matings, males amplex females dorsally, ventrally, and dorsolaterally. |
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| A mosquito F 2 population was obtained from pairwise matings between the parasite-susceptible RED strain and the resistant MOYO-R substrain. |
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| However, much of the evidence remains suggestive rather than conclusive because all studies are based on natural matings. |
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| Little is known about the actual mating behavior of hoary marmots because most matings occur inside burrows. |
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| In successful matings, the time of the first palpal insertion and which palp was inserted were noted. |
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| This makes it possible to arrange matings by computer in order to minimize problems caused by inbreeding. |
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| Horizontal lines represent crosses, thick horizontal lines are consanguineous crosses, and vertical lines represent descendants from such matings. |
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| Thus deleterious recessives had not been eliminated from the population to the extent that consanguineous matings were harmless in terms of offspring viability. |
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| The purpose of both line breeding and inbreeding is to bring about breed improvement to get the best that is possible out of ones matings and to upgrade his stock. |
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| Fully recessive mutations are maintained in higher frequencies than partially recessive ones and thus cause greater declines in fitness under consanguineous matings. |
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| In all, the germline chimeras derived from these five cell lines sired 326 progeny in matings to B6 females, but no deletion-bearing offspring were observed. |
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| All matings were between cows and bulls of the same breed except for nine Polled Hereford sires, which were bred to both Horned Hereford and Polled Hereford cows. |
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| Matings have also been observed in June and even early October, but it is not known if the autumn matings result in any young. |
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| However, there are ecological and demographic constraints on extra pair matings. |
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| The progeny of backcrosses and intercrosses will form some incrosses and some matings of other types. |
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| There may be several more matings before the stag will seek out another mate in his harem. |
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| Usually, one can get in two matings using this method, though some stud males routinely refuse to mate a female more than once. |
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| A delay of two to nine months precedes the fertilised eggs implanting into the wall of the uterus, though matings in December can result in immediate implantation. |
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| Underlying all distributions of characters in assortative matings are certain elementary principles based on probabilities and the theory of sampling. |
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| Matings occurring outside this period typically occur in sows which either failed to mate earlier in the year or matured slowly. |
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| Matings start before ovulation occurs and the first pregnancies of the year often result in a single foetus, with pregnancy failures being common. |
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