Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
19/09/2017 |
Data da última atualização: |
19/09/2017 |
Autoria: |
WEIR, W. C.; RENDIG, V. V.; ITTNER, N. R. |
Título: |
Evaluation by lamb and steer feeding tests of alfalfa hay of varying phosphorus content. |
Ano de publicação: |
1958 |
Fonte/Imprenta: |
Journal of Animal Science, v. 17, n. 1, p. 113-123, Feb. 1958. |
DOI: |
10.2527/jas1958.171113x |
Idioma: |
Inglês |
Conteúdo: |
Feeding trials with both sheep and steers and digestion and balance tests were conducted on alfalfa hay of varying phosphorus content to study its nutritive value. Hay produced on virgin sandy desert soil which contained 0.10% phosphorus was unpalatable and produced poor animal gains, feed utilization and depressed serum phosphorus content. The addition of disodium phosphate to this hay improved animal gains, feed utilization and increased the blood serum phosphorus. Hay containing 0.15% phosphorus was apparently equal in feeding value to hay containing greater amounts of phosphorus. Digestion trials on the various hays did not reveal any significant differences in the digestibility of the various nutrients. Balance trials showed no difference in nitrogen retention and a variable calcium balance. An increased retention of phosphorus was obtained by adding disodium phosphate to a low phosphorus hay in one test, in another, the addition of disodium phosphate to unfertilized hay resulted in increasing the phosphorus retention up to that of heavily fertilized hay. |
Palavras-Chave: |
Animal nutritiion; Feed conversion efficiency; Feed grasses; Nitrogen retention. |
Thesagro: |
Medicago Sativa. |
Thesaurus Nal: |
Animal feeding; Cattle; Digestion; Nutritive value; Phosphates; Phosphorus; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01914naa a2200301 a 4500 001 2075806 005 2017-09-19 008 1958 bl uuuu u00u1 u #d 024 7 $a10.2527/jas1958.171113x$2DOI 100 1 $aWEIR, W. C. 245 $aEvaluation by lamb and steer feeding tests of alfalfa hay of varying phosphorus content. 260 $c1958 520 $aFeeding trials with both sheep and steers and digestion and balance tests were conducted on alfalfa hay of varying phosphorus content to study its nutritive value. Hay produced on virgin sandy desert soil which contained 0.10% phosphorus was unpalatable and produced poor animal gains, feed utilization and depressed serum phosphorus content. The addition of disodium phosphate to this hay improved animal gains, feed utilization and increased the blood serum phosphorus. Hay containing 0.15% phosphorus was apparently equal in feeding value to hay containing greater amounts of phosphorus. Digestion trials on the various hays did not reveal any significant differences in the digestibility of the various nutrients. Balance trials showed no difference in nitrogen retention and a variable calcium balance. An increased retention of phosphorus was obtained by adding disodium phosphate to a low phosphorus hay in one test, in another, the addition of disodium phosphate to unfertilized hay resulted in increasing the phosphorus retention up to that of heavily fertilized hay. 650 $aAnimal feeding 650 $aCattle 650 $aDigestion 650 $aNutritive value 650 $aPhosphates 650 $aPhosphorus 650 $aSheep 650 $aMedicago Sativa 653 $aAnimal nutritiion 653 $aFeed conversion efficiency 653 $aFeed grasses 653 $aNitrogen retention 700 1 $aRENDIG, V. V. 700 1 $aITTNER, N. R. 773 $tJournal of Animal Science$gv. 17, n. 1, p. 113-123, Feb. 1958.
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Embrapa Caprinos e Ovinos (CNPC) |