Results 161 to 170 of about 11,071 (289)

Correlations Among First and Second Lactation Milk Yield and Calving Interval

, 1989
Estimates of genetic correlations were .17 between first lactation milk yield and concurrent calving interval, .10 between second lactation milk yield and first calving interval, and .82 between first and second milk yields.
Van Vleck, L. Dale, Dong, M. C.
core  

Spatio‐Temporal Patterns in Relative Abundance and Distribution of Southern Right Whales in Southwestern Australia, 2021–2024

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Southern right whales (Eubalaena australis) are listed as Endangered in Australia due to past commercial exploitation. Currently, they are experiencing contemporary declines in population growth rates. Knowledge of critical periods and habitats in whale occupancy and reproduction is crucial for conservation efforts.
Katy Fannei, Max Fabry, Joshua N. Smith, Paul Close, Bridgette O'Shannessy, Barbara Stewart, Jane Prince, Claire Charlton   +7 more
wiley   +1 more source

CALVING INTERVAL AND SERVICE PERIOD OF GUZERAT COWS

, 2009
Avaliou-se a influência de fatores de meio ambiente sobre o intervalo entre partos (IEP) e período de serviço (PS) de 280 observações de vacas Guzerá leiteiras, da segunda a sexta ordem de parto, em duas estações do ano (chuvosa - março a agosto e seca – setembro a fevereiro), de 1988 a 1998. As médias e os desvios-padrão de IEP e PS foram de 14,72 ± 2,
Rangel, Adriano Henrique do Nascimento, Guedes, Paulo Leonardo Correia, Albuquerque, Rômulo Pontes Freitas, Novais, Luciano Patto, Lima Júnior, Dorgival Morais   +4 more
openaire   +1 more source

Effect of age at first Calving and Parity Order on Lactation Length, Lactation Yield and Calving Interval in the Belgravia Dairy Farm

, 2010
The obejctive of this study was to investigate the effect of age at first calving and parity order on some production and reproduction traits (lactation length, lactation yield and calving interval) in Belgravia dairy farm, which belong to the ...
Anthony Achor Micheal, Julia
core  

Stable Isotope Analysis (δ13C and δ15N) of Baleen Plates Reveals Feeding Patterns in Stranded Humpback Whales (Megaptera novaeangliae) Along the Brazilian Coast

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Humpback whales (Megaptera novaeangliae) from breeding stock A migrate annually between Antarctic feeding grounds (~65° S) and Brazilian breeding areas (~17° S). Traditionally considered to fast during migration, recent feeding observations and increased strandings along southeastern Brazil (~23° S) raise questions about possible shifts in ...
Daniel Fonseca Zappa, Kalil Salloum, Nandhara Alexandrini Martins, Carla Bantel, Andrea Maranho, Carla Beatriz Barbosa, Francisco William da Cruz Júnior, Adriana Barioni, Gislene Torrente‐Vilara   +8 more
wiley   +1 more source

Evaluation of calving date and calving interval as measures of reproductive efficiency in beef cows.

Journal of the South African Veterinary Association, 1996
Five hundred and thirty-five calving records were analysed to determine the relationship and factors influencing calving date (CD) and calving interval (CI) so as to determine which of the two is the best measure of reproductive efficiency in beef cows mated during a restricted breeding season.
openaire   +1 more source

Harbor Porpoise and Beluga Whale Habitat Use in the Saguenay‐St. Lawrence Marine Park (Canada) Revealed by a Combination of Visual and Acoustic Survey

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Studying habitat use of cetaceans that spend most of their lives underwater poses challenges, prompting the use of complementary methods. Non‐invasive methods, land‐based surveys (LBS) and passive acoustic monitoring (PAM), were used to characterize occurrence patterns of beluga whales, harbor porpoises, and vessels in the Saguenay–St ...
Coralie Bernier‐Breton, Cristiane C. A. Martins, Gesche Winkler, Pierre Mercure‐Boissonnault, Léna Velé, Pierre Cauchy   +5 more
wiley   +1 more source

Foraging Ecology and Fisheries Interactions of Common Bottlenose Dolphins (Tursiops truncatus) Inferred From Strandings in Western Iberian Atlantic Waters

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The common bottlenose dolphin (Tursiops truncatus) is a resident species along the Portuguese mainland coast, yet knowledge of its stranding patterns and feeding ecology is scarce. This study presents a comprehensive assessment of strandings (n = 264, from 1980 to 2019) and feeding ecology based on stomach content analysis (n = 43 from 1997 to
Ana Marçalo, Lídia Nicolau, Andreia Torres‐Pereira, Catarina Eira, Helder Araújo, Isabel Oliveira, Jorge Santos, Maria Casero, Marisa Ferreira, Marina Sequeira, Sara Sá, Silvia S. Monteiro, José Vingada, Joan Giménez   +13 more
wiley   +1 more source

Factors affecting calving interval in retinto beef cattle

, 1995
The main objective of beef cattle improvement is greater profitability on farms. For this, the optimization of reproductive behavior is essential. In the present paper we have made an analysis of the average calving interval in Retinto beef cattle, as ...
Muñoz Vilches, P., Molina Alcalá, Antonio, Tapia Román, N.   +2 more
core  

Dwarf Minke Whale (Balaenoptera acutorostrata) Mother and Calf Ecology in East and Southern Australia

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Knowledge of mother–calf pairs, migratory patterns, female reproductive cycles, and birth‐year calf development are all essential for understanding risks in these critical life stages and monitoring little‐known dwarf minke whale (Balaenoptera acutorostrata) populations.
Claire E. Wouters, R. Alastair Birtles, Naomi M. Gardiner   +2 more
wiley   +1 more source