Forage yields and feeding value of small grain winter cereals for lambs
Küçük Resim Yok
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
WILEY-BLACKWELL
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
BACKGROUNDAn understanding of the dynamics that affect the nutrient content of forages with advancing growth stages is critical for designing equally dynamic feeding programmes. This study compared the agronomic characteristic and feeding values of forages from barley, rye, wheat, oats and triticale weekly from tillering (Z 24-25) to dough stages of maturity (Z 83-87). RESULTDigestible dry matter yield of cereal species increased rapidly (P < 0.05) from 1.9 t ha(-1) at tillering to 7.8 t ha(-1) at ear emergence (Z 50-55) and remained stable (P > 0.05) until the dough stage when it increased to 10.4 t ha(-1). The nutritive quality of cereal species decreased with advancing growth stages, and this was more pronounced in barley and rye with rapid reductions in their energy and digestibility values. Changes in the nutritive value of cereal forages indicated a strong relationship (P < 0.05) with the leaf-stem ratio of the plants. The animal response reflected the changes in feeding value of cereal species with advancing growth stages. The average live weight gain of lambs decreased (P < 0.05) from an average of 203 g d(-1) on 2 May to 142 g d(-1) on the 13 June. CONCLUSIONWheat and oats, and to a lesser extent triticale, provided higher quality forages than barley and rye. All cereal species had poor feeding qualities between ear emergence and milk stages (Z 71-75). (c) 2016 Society of Chemical Industry
Açıklama
Anahtar Kelimeler
dry matter yield, feeding value, forage, growth stage, lamb, winter cereals
Kaynak
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
96
Sayı
12
