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You searched for: Journal Livestock production science Remove constraint Journal: Livestock production science Publication Year 2003 Remove constraint Publication Year: 2003 Source 2003 v.84 no.3 Remove constraint Source: 2003 v.84 no.3 Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Accuracy of dual energy X-ray absorptiometry (DXA), weight and P2 back fat to predict whole body and carcass composition in pigs within and across experiments

Author:
Suster, D.; Leury, B.J.; Ostrowska, E.; Bulter, K.L.; Kerton, D.J.; Wark, J.D.; Dunshea, F.R.
Source:
Livestock production science 2003 v.84 no.3 pp. 231-242
ISSN:
0301-6226
Subject:
X-radiation; backfat; body composition; body weight; bone density; computer software; dual-energy X-ray absorptiometry; energy; livestock production; mineral content; nondestructive methods; swine
Abstract:
... An Hologic QDR4500 dual energy X-ray absorptiometer (DXA) was used to measure body composition in 151 pigs ranging from 10 to 120 kg live weight. Large White×Landrace pigs of mixed sexes were selected from five different experiments to evaluate DXA accuracy within and across experiments. Values predicted by DXA including total tissue mass, fat tissue mass, lean tissue mass and bone mineral content ...
DOI:
10.1016/S0301-6226(03)00077-0

2. Beef production from Holstein–Friesian bulls and steers of New Zealand and European/American descent, and Belgian Blue×Holstein–Friesians, slaughtered at two weights

Author:
Keane, M.G.
Source:
Livestock production science 2003 v.84 no.3 pp. 207-218
ISSN:
0301-6226
Subject:
Belgian Blue; Holstein; artificial insemination; beef; beef cattle; bulls; carcass weight; commercial farms; cows; genetic merit; genotype; heifers; livestock production; longissimus muscle; meat production; natural mating; pastures; production technology; progeny; rearing; ribs; slaughter; slaughter weight; steers; subcutaneous fat; summer; Ireland; New Zealand
Abstract:
... Various strains of Holstein–Friesian cattle have been imported into Ireland in recent years. The objective of this study was to evaluate for beef production the male progeny of New Zealand (NZ) and European/American (EU) Holstein–Friesians, and Belgian Blue×Holstein–Friesians (BB). The NZ animals were imported from New Zealand as embryos which were implanted into Irish heifers. The EU animals were ...
DOI:
10.1016/S0301-6226(03)00092-7

3. Effects of different transition diets on energy balance, blood metabolites and reproductive performance in dairy cows

Author:
McNamara, S.; Murphy, J.J.; Rath, M.; O'Mara, F.P.
Source:
Livestock production science 2003 v.84 no.3 pp. 195-206
ISSN:
0301-6226
Subject:
3-hydroxybutyric acid; Holstein; bile acids; blood; blood glucose; blood proteins; body condition; calving; dairy cows; diet; energy balance; energy density; grass silage; grasses; individual feeding; lactation; livestock production; metabolites; milk; reproductive performance; urea
Abstract:
... The objective of this study was to evaluate the effect of diets differing in energy density (ED) in the last 4 weeks of the dry period and in the first 8 weeks of lactation on energy balance (EB), blood metabolites and reproductive performance. Three diets (grass silage:straw 75:25 on a dry matter basis (SS), grass silage (S) and grass silage+3 kg/day of concentrates (C)) pre-calving and two diets ...
DOI:
10.1016/S0301-6226(03)00093-9

4. Population parameters for traits defining trypanotolerance in an F2 cross of N’Dama and Boran cattle

Author:
Waaij, E.H. van der; Hanotte, O.; Arendonk, J.A.M. van; Kemp, S.J.; Kennedy, D.; Gibson, J.P.; Teale, A.
Source:
Livestock production science 2003 v.84 no.3 pp. 219-230
ISSN:
0301-6226
Subject:
Boran; Glossina; Trypanosoma congolense; anemia; body weight changes; cattle; heritability; livestock production; parasites; phenotypic correlation; purebreds; trypanosomiasis; trypanotolerance
Abstract:
... Some West African Bos taurus cattle breeds such as the N’Dama and a number of West African Shorthorns are resistant to tsetse fly-transmitted trypanosomosis. The trait is termed trypanotolerance, for which changes in packed red cell volume percent (PCV) and growth rate following infection are generally considered to be indicators. An F22 population was created with the N’Dama and the Kenyan Boran ...
DOI:
10.1016/S0301-6226(03)00078-2