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首页> 外文期刊>Indian Journal of Small Ruminants >Testicular development of Malpura ram lambs under extensive and intensive feeding regimen.
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Testicular development of Malpura ram lambs under extensive and intensive feeding regimen.

机译：在广泛和密集的喂养方式下，马尔普拉公羊羔的睾丸发育。

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Newly born male lambs of Malpura breed were divided into two groups to examine the effect of two feeding (extensive and intensive) regimen on growth, testicular development and attainment of puberty. Lambs in Group 1 were reared under the routine management of grazing (extensive feeding) while lambs in Group 2 had additional access to their mother at mid-day on each day up to weaning and were provided green fodder leaves and concentrate mixture ad libitum (intensive feeding). The parameters studied were body weights at birth, 3, 6, 9 and 12 months of age; testicular measurements i.e. circumference, length, breadth and volume at 6, 9 and 12 months of age; age at puberty and six monthly greasy fleece yield. Feeding of growing ram lambs had significant (P<0.01) effect on growth, puberty and testicular development. The gain in the body weight of lambs in Group 2 was significantly (P<0.01) higher at 3, 6 and 9 month of age as compared to lambs of Group 1. All the ram lambs under intensive feeding ejaculated semen in the artificial vagina at the mean age of 218.75+or-11.44 days, however, only two (33.3%) ram lambs in extensive feeding management donated semen within one year of age. The first six monthly greasy fleece yield of lambs was relatively higher under intensive feeding than under extensive feeding. Intensive feeding of lambs enhanced the testicular development as evident by the increase in length, breadth, circumference and volume at 6, 9 and 12 months of age. The results indicate that intensive feeding management of growing ram lambs enhanced their growth and testicular development, and reduced the age of puberty.
机译：将马尔珀拉（Malpura）品种的新生雄性羔羊分为两组，以研究两种饲喂（粗养和强养）方案对生长，睾丸发育和青春期的影响。第1组的羔羊在放牧的常规管理下饲养（大量饲喂），而第2组的羔羊在每天中午直至断奶前有更多机会与母亲接触，并提供了绿色饲料叶和浓缩饲料。随意进食（密集喂养）。研究的参数是出生时，3、6、9和12个月大时的体重;睾丸测量值，即6、9和12个月大时的周长，长度，宽度和体积;青春期的年龄和六个月的油腻羊毛产量。喂养正在成长的公羊羔羊对生长，青春期和睾丸发育具有显着（P <0.01）影响。与第1组的羔羊相比，第2、3和6个月和9个月大时，第2组的羔羊体重增加显着（P <0.01）。平均年龄为218.75+或-11.44天，但是，在广泛的饲养管理中，只有两只（33.3％）的羔羊在一年内捐赠了精液。集约饲喂的前六个月羔羊油腻羊毛的产量相对于集约饲喂相对较高。密集喂养羔羊可促进睾丸发育，在6、9和12个月大时，其长度，宽度，周长和体积都会增加。结果表明，对生长中的羔羊进行严格的饲喂管理可提高其生长和睾丸发育，并降低青春期。

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