Results 61 to 70 of about 6,252 (157)

The Assessment of the Calving Interval at Cows in the Mountain Area

Annals ”Valahia” University of Targoviste - Agriculture, 2017
Abstract For an effective, in determining the index „Calving Interval“ we take into consideration the two components of each interval: service period (SP) and duration of gestation (DG). In order to obtain the optimal interval between calving (365 days) the cow should become gestant at 81 days after calving, because along with 284-285 ...
openaire   +1 more source

REPRODUCTIVE PERFORMANCE OF RED SINDHI CATTLE UNDER HOT AND HUMID ENVIRONMENT OF BALOCHIST AN PROVINCE OF PAKISTAN

Pakistan Veterinary Journal, 2003
The present study was conducted to investigate the reproductive performance of 179 Red Sindhi cows with 485 lactation records covering 19 years period from 1978 to 1997, kept at the Government Red Sindhi Cattle Farm, Hub Chowki, District Lasbela ...
M. I. Mustafa, M Latif, M. K. Bashir1 and B. Ahmad
doaj  

Milk production, age at first calving, and calving-toconception interval in Holstein, Brown Swiss, and Holstein x Brown Swiss cows

Revista de la Facultad de Ciencias Agrarias
The objective of this study was to evaluate milk production, age at first calving, and calving to conception interval in Holstein, Brown Swiss, and Holstein x Brown Swiss crossbred cows within a pasture-based dairy system in Argentina. The increasing
Victoria Cañete, Belen Lazzarini, Agustín Alesso, Javier Baudracco, Pablo Roberto Marini   +4 more
doaj   +2 more sources

Population Genetic Features of Calving Interval of Holstein-Friesian Cows Bred in Hungary. [PDF]

Animals (Basel)
Bene S, Kőrösi ZJ, Bognár L, Polgár JP, Szabó F.   +4 more
europepmc   +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

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

Influence of herd and environmental factors and phenotypic trends in productive and reproductive traits in dairy farms in Argentina. [PDF]

Trop Anim Health Prod
Beribe MJ, Carignano HA, Piccardi M, Tuñon G, Bertossi M, Weber M, Pipino D, Sola C, Marini PR, López-Villalobos N.   +9 more
europepmc   +1 more source

Administration of antioxidants at parturition in Italian Mediterranean lactating buffaloes: findings in the postpartum. [PDF]

Trop Anim Health Prod
Frattina L, Carbonari A, Burgio M, Bramante G, Andriulo OM, Ceci E, Galdieri C, D'Onghia A, Cicirelli V, Rizzo A.   +9 more
europepmc   +1 more source

Influence of first calving date on stayability and productivity in <i>Bos indicus-Bos taurus</i> crossbred cows. [PDF]

Transl Anim Sci
Engle BN, Gill CA, Sawyer JE, Riley DG, Sanders JO, Herring AD.   +5 more
europepmc   +1 more source

Genetic Parameters and Weighted Single-Step Genome-Wide Association Studies of Fertility Traits in Chinese Holstein. [PDF]

Animals (Basel)
Li S, Wang A, Chang Y, Yan Q, Zhang H, Hou S, Guo G, Wang Y.   +7 more
europepmc   +1 more source