産卵鶏用飼料としての大麦の利用について
| Autor: | Isshiki, Yutaka, Nakahiro, Yoshio, Ohmatsu, Kiyoshi |
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| Jazyk: | japonština |
| Rok vydání: | 1981 |
| Předmět: | |
| Zdroj: | 香川大学農学部学術報告. 32(2):71-76 |
| ISSN: | 0368-5128 |
| Popis: | application/pdf In order to investigate the utilization of barley (husked rolled barley), the 6-month-old single comb White Leghorn hen were freely fed the conventional diet added 20% barley + 2.2% fish meal, 30% barley + 3.3% fish meal or 40% barley + 4.4% fish meal during 4 months, and the following results were obtained. 1) The egg production, egg weight and feed intake were significantly decreased with an increase of barley in the diet, and there were negative correlations at 1% level. The feed efficiency was not affected by an increase of dietary barley. 2) The cost of egg production was lowered by barley feeding, but there was a decrease of egg production with an increase of dietary barley. Therefore, it is concluded that the barley feeding is not always economically profitable in laying hen. 6か月齢の単冠白色レグホーン種の雌に慣用配合飼料と, それに脱？圧扁大麦を20%と魚粉2.2%, 同様に30%と3.3%および40%と4.4%を配合した飼料を4か月間給与し, その間における飼料の利用性を調査した. 1. 産卵率, 卵重および飼料摂取量は大麦の配合量が多くなるにしたがって有意に低下し, いずれも1%水準で負の相関々係が認められた. しかし, 飼料効率では大麦配合による差は認められなかった. 2. 卵の生産費は大麦の給与によって減少したが, 産卵量が低下するため必ずしも経営上有利とは考えられなかった. |
| Databáze: | OpenAIRE |
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