Influence of Recipient Dams of Different Breeds and Artificial Colostrum Feedings on Performance of Japanese Black Male Calves Produced by Embryo Transfer

DOI JASI Web Site 25 References

Bibliographic Information

Other Title
  • 受胚牛の品種および人工初乳の給与が胚移植により生産された黒毛和種雄子牛の発育および血液成分に及ぼす影響
  • ジュハイギュウ ノ ヒンシュ オヨビ ジンコウ ショニュウ ノ キュウヨ ガ ハイイショク ニ ヨリ セイサン サレタ クロゲ ワ シュオス コウシ ノ ハツイク オヨビ ケツエキ セイブン ニ オヨボス エイキョウ

Search this article

Description

To better understand the influence of breed of recipient dams and artificial colostrum feedings on the performance of male calves produced by embryo transfer (ET), ET-Japanese Black calves were divided into four groups by breed: recipient of Holstein-Friesian dams (HF), crossbred (Holstein×Japanese Black) dams (F1), Japanese Black dams (JB) and, as a negative control (NC), JB dams without colostrum but receiving an artificial colostrum. Male calves produced by artificial insemination of JB dams, receiving the dam's colostrum, were also provided as a positive control (PC). All calves were moved into individual pens on day 8, and were given the same commercial milk replacement. Calves were weaned at 61 days of age and monitored until 180 days of age. Mean live weights at birth were not significantly different among groups except for calves of HF, the weights of which were greater than other groups (P<0.05). Mean daily gains also showed no significant differences among the groups, including PC and NC. All calves were in a good healthy condition, which was also supported by changes in the level of blood parameters, irrespective of the breed of their dams. It was concluded that there was no appreciable effect of the breed of recipient dams on the performance of Japanese Black male calves. The artificial colostrum feeding did not show any adverse effect on the performance of ET-calves, although serum protein and globulin tended to be lower.

Journal

References(25)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top