Article
Agriculture, Dairy & Animal Science
Jon H. Eiriksson, Ismo Stranden, Guosheng Su, Esa A. Mantysaari, Ole F. Christensen
Summary: In genomic prediction of crossbred animals, accounting for the breed origin of alleles (BOA) can improve the accuracy of genomic breeding value prediction. This study investigated different measures of breed proportions and heterozygosity derived from BOA, and validated their effectiveness for predicting production traits in crossbred dairy cows. The results showed that models incorporating BOA had higher predictive ability compared to models using only global breed proportions.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
G. M. Pereira, B. J. Heins, B. Visser, L. B. Hansen
Summary: This study compared the differences in dry matter intake, milk production, body weight, body condition score, and feed efficiency between CB cows and HO cows fed with different diets. When CB cows were fed with the HFLS diet, compared to HO cows fed with the TRAD diet, the dry matter intake and body weight decreased, while milk production, fat plus protein production, and feed efficiency showed no significant differences. In terms of residual feed intake, CB cows fed with the HFLS diet had lower and more desirable values compared to HO cows fed with the TRAD diet.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Wayne S. Pitchford, Judith M. Pitchford, Jena G. Alexopoulos, Michelle L. Hebart
Summary: This study presents a genomic analysis of purebred Angus and Hereford x Angus maternal productivity, highlighting the importance of heterozygosity effects and breed differences on growth, puberty, and reproductive performance. The research suggests that genomics offers a cost-effective and efficient strategy for the development of multi-breed Estimated Breeding Values in commercial herds.
Article
Genetics & Heredity
Magriet A. van der Nest, Nompilo Hlongwane, Khanyisile Hadebe, Wai-Yin Chan, Nicolaas A. van der Merwe, Lieschen De Vos, Ben Greyling, Bhaveni B. Kooverjee, Pranisha Soma, Edgar F. Dzomba, Michael Bradfield, Farai C. Muchadeyi
Summary: The study evaluated the genetic architecture of an admixed South African Simbra crossbred population and identified genomic regions showing signatures of selection. These regions contain genes affecting cattle health and production, potentially contributing to the phenotype of the Simbra hybrid cattle breed.
FRONTIERS IN GENETICS
(2021)
Article
Agriculture, Dairy & Animal Science
J. M. D. R. Jayawardana, N. Lopez-Villalobos, R. E. Hickson, L. R. McNaughton
Summary: The study aimed to estimate genetic parameters and effects of individual and maternal breed, heterosis, and recombination loss on milk production and fertility traits in Holstein Friesian (F), Jersey (J), and crossbred Holstein Friesian and Jersey (F x J) cows milked once daily (OAD) or twice daily (TAD) in New Zealand. Data from 278,776 lactations across 644 spring-calving herds were analyzed. The heritability estimates for milk production and fertility traits were consistent across milking frequencies. Jersey cows had higher fertility traits, while F cows had higher milk yields. Individual heterosis effects were favorable for all traits and crossbred F x J cows had improved reproductive performance compared to purebred F and J cows. Recombination loss effects had small and sometimes favorable effects on production and fertility traits.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
P. K. Wahinya, M. G. Jeyaruban, A. A. Swan, J. H. J. van der Werf
Summary: A deterministic bio-economic model was developed to estimate economic weights for genetic improvement of various traits in different production systems in the Tropics. The study found that milk yield and calving interval were the most important traits across all production systems, with a higher emphasis on milk yield in high production systems.
Article
Agriculture, Dairy & Animal Science
Martina Piazza, Stefano Schiavon, Sudeb Saha, Marco Berton, Giovanni Bittante, Luigi Gallo
Summary: This study compared rotational 3-breed crossbred cows with purebred Holstein cows for body measurements and productivity. Heart girth, height at withers, body length, and body condition score were measured. Body weight was used to estimate body protein and lipid contents. Maintenance energy requirements were computed based on body protein mass. The crossbred cows yielded less milk and milk energy than the purebred Holsteins, but the differences became insignificant when productivity was scaled on body protein mass. Overall, combining production capability with body composition and energy cost is a more effective way to compare crossbred and purebred Holstein cows.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
J. B. Clasen, C. Bengtsson, H. N. Kallstrom, E. Strandberg, W. F. Fikse, L. Rydhmer
Summary: Breeding technologies such as sexed semen, beef semen, genomic testing, and dairy crossbreeding are readily available to Swedish dairy farmers, but their use is limited in the country. A survey with a discrete choice experiment showed that farmers strongly prefer sexed semen and beef semen, while genomic testing is also widely favored. However, buying embryos was not preferred by any group of respondents.
Article
Agriculture, Dairy & Animal Science
Reza Talebi, Mohammad Reza Ghaffari, Stephane Fabre, Mohsen Mardi, Mehrbano Kazemi Alamouti
Summary: This study compared the growth performance of Moghani sheep and crossbred lambs resulting from crossbreeding with different lines of rams. The crossbred lambs showed the phenotypic characteristic of lean tail, while Moghani sheep had a large fat-tail. The F1 crossbred lambs had significantly greater birth weight than the Moghani pure breed lambs. After weaning, the F1 crossbred lambs achieved significantly greater body weight compared to Moghani sheep. The growth performance of BC1 lambs outperformed both the F1 crossbred and Moghani sheep, indicating the potential benefits of continuing the Moghani sheep crossbreeding programs.
ANIMAL BIOTECHNOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Julien Quenon, Marie-Angelina Magne
Summary: This study compared the performance of purebred Holstein (HO), first- and second-generation crosses (F-1 and G(2)) in terms of milk production, reproduction, and udder health. It found that combining HO with F-1 or both F-1 and G(2) (below 30%) could be more profitable than using purebred HO or fully crossbred herds in a conventional milk price scenario. The study highlights the benefits of functional diversity generated from the use of dairy crossbreeding in dairy herds.
Article
Agriculture, Dairy & Animal Science
Jon H. Eiriksson, Kevin Byskov, Guosheng Su, Jorn Rind Thomasen, Ole F. Christensen
Summary: This study aimed to investigate if reliable genomic predictions for crossbred dairy cows can be obtained by combining estimated marker effects from the genomic evaluations of purebreds. The results showed that predictive ability was higher when accounting for breed origin compared to only considering genomic breed proportions, and the breed proportion model had level bias.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Tesfalem Aseged, Tesfaye Getachew, Sandip Banerjee
Summary: This study identified the breeding objectives and selection criteria of Begaria cattle keepers. The results showed that milk yield, calving interval, mothering ability, growth rate, and age at first calving were determined as important breeding objectives for the community. These findings are crucial for improving the productivity and development of the cattle industry.
Article
Agriculture, Dairy & Animal Science
M. Piazza, M. Berton, N. Amalfitano, G. Bittante, L. Gallo
Summary: This observational study compared the carcass attributes of culled cows from three-breed crossbreeding with Holstein purebred cows and found that crossbred cows had a higher overall value, better fleshiness, and higher price.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
R. Trevor Wilson
Summary: Tanzania's cattle population consists almost entirely of native TSZ cows, with efforts to improve productivity beginning in 1925 but facing challenges in achieving production targets. The introduction of different breeds and genetics aimed to create a composite animal adapted to the local environment, but various factors hindered development and the Mpwapwa animals have not bred true to type or consistent production outputs.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Agriculture, Dairy & Animal Science
Sudeb Saha, Martina Piazza, Giovanni Bittante, Luigi Gallo
Summary: This study compared the mineral profiles of milk from purebred Holstein (HO) cows and crossbred cows (CR) derived from different combinations of Viking Red (VR), Montbeliarde (MO), and Holstein (HO) sires. The results showed that the mineral composition of milk from CR varied depending on the breed combination, with MO-sired crossbreds having lower contents of certain microminerals, while HO-sired crossbreds had higher contents of certain minerals. Overall, the mineral profile of milk from CR was comparable to that of milk from HO cows in the same herd, and variations in mineral profiles were greater among CR than between purebreds and crossbreds.
ITALIAN JOURNAL OF ANIMAL SCIENCE
(2021)
Article
Environmental Sciences
Sahrah Fischer, Thomas Hilger, Hans-Peter Piepho, Irmgard Jordan, Georg Cadisch
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Agronomy
Rene Beuschel, Hans-Peter Piepho, Rainer Georg Joergensen, Christine Wachendorf
AGROFORESTRY SYSTEMS
(2020)
Article
Statistics & Probability
Waqas Ahmed Malik, Carles Marco-Llorca, Kenneth Berendzen, Hans-Peter Piepho
COMMUNICATIONS IN STATISTICS-THEORY AND METHODS
(2020)
Article
Microbiology
Kezia Goldmann, Runa S. Boeddinghaus, Sandra Klemmer, Kathleen M. Regan, Anna Heintz-Buschart, Markus Fischer, Daniel Prati, Hans-Peter Piepho, Doreen Berner, Sven Marhan, Ellen Kandeler, Francois Buscot, Tesfaye Wubet
ENVIRONMENTAL MICROBIOLOGY
(2020)
Article
Behavioral Sciences
H. Iffland, R. Wellmann, S. Preuss, J. Tetens, W. Bessei, H. -P. Piepho, J. Bennewitz
Article
Agronomy
Alain Morau, Hans-Peter Piepho, Juergen Fritz
BIOLOGICAL AGRICULTURE & HORTICULTURE
(2020)
Article
Agronomy
Tomasz Lenartowicz, Hans-Peter Piepho, Marcin Przystalski
Article
Soil Science
Rene Beuschel, Hans-Peter Piepho, Rainer Georg Joergensen, Christine Wachendorf
APPLIED SOIL ECOLOGY
(2020)
Article
Chemistry, Analytical
Beate Stumpf, Margitta Kuenne, Lan Ma, Menglu Xu, Feng Yan, Hans-Peter Piepho, Bernd Honermeier
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2020)
Article
Agronomy
S. Opderbeck, B. Kessler, W. Gordillio, H. Schrade, Hans-Peter Piepho, Eva Gallmann
Article
Agronomy
Svenja Opderbeck, Barbara Kassler, William Gordillio, Hansjoerg Schrade, Hans-Peter Piepho, Eva Gallmann
Summary: This study investigated the use of one floor cooling and two heating systems in piglet rearing, finding that while the heating systems did not significantly affect lying behavior, cooling had a clear impact on lying behavior, particularly in the later stages of rearing.
Article
Environmental Sciences
Matthias Wengert, Hans-Peter Piepho, Thomas Astor, Ruediger Grass, Jayan Wijesingha, Michael Wachendorf
Summary: The study utilized UAV imagery to predict crop parameters in agroforestry systems, showing high accuracy in predicting whole crop dry biomass yield and leaf area index. Key variables for prediction included normalized reflectance, vegetation indices, texture, and plant height.
Article
Agronomy
Fruzsina Schmidt, Herwart Boehm, Hans-Peter Piepho, Peer Urbatzka, Michael Wachendorf, Ruediger Grass
Summary: Traditional maize production can have negative side-effects on unprotected soil surfaces, but reducing soil disturbance can enhance system sustainability. However, implementation of such measures may be hindered in organic agriculture due to reduced nitrogen availability and increased weed infestation. A field experiment evaluating the yield potential of organic silage maize cropping systems identified management practices that improved maize yields and soil protection.
Article
Biochemistry & Molecular Biology
Paul Gruner, Anne Witzke, Kerstin Flath, Jakob Eifler, Brigitta Schmiedchen, Malthe Schmidt, Andres Gordillo, Doerthe Siekmann, Franz Joachim Fromme, Silvia Koch, Hans-Peter Piepho, Thomas Miedaner
Summary: This study screened several breeding populations for resistance to stem rust and leaf rust and identified multiple genetic loci associated with resistance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Fruzsina Schmidt, Herwart Boehm, Ruediger Grass, Michael Wachendorf, Hans-Peter Piepho
Summary: The study aims to evaluate the weed control efficiency of 18 organically managed silage maize cropping systems, and the results suggest that using double cropping and mulching methods can effectively reduce weed groundcover and increase crop yield.