Results 31 to 40 of about 6,252 (157)

REPRODUCTIVE EFFICIENCY OF JERSEY COWS UNDER SUBTROPICAL CONDITIONS OF THE PUNJAB [PDF]

open access: yesPakistan Veterinary Journal, 2004
Various parameters of reproductive efficiency of Jersey cows kept at the Livestock Experiment Station, Bhunikey (Pattoki), District Kasur, for the period from 1991 to 2000 were studied.
A. Sattar, R. H. Mirza and I. Ahmad
doaj  

GENETIC AND PHENOTYPIC CORRELA TIONS FOR SOME ECONOMIC TRAITS IN DAIRY CATTLE

open access: yesPakistan Veterinary Journal, 2001
Data on lactation records of 1113 purebred Sahiwal and 784 Holstein Friesian X Sahiwal (FS) and Jersey X Sahiwal (JS) crossbred cows kept at the Livestock Production Research Institute (LPRl), Bahadurnagar, District Okara and Qadirabad District Sahiwal ...
Manzoor Ahmad, J. H. J. van der Werf1 and Khalid laved2
doaj  

Evaluation of Relationship between Traits of Milk Production and Reproduction Traits in Dairy Cows of the Slovak spotted breed

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The aim this work was to evaluate relationships between traits of milk production and reproduction traits in breeding herds of Slovak spotted breed in the period 1992-2010 the results for 10 514 Slovak cows.
Jozef Bujko   +4 more
doaj  

Genetics aspects of reproductive performance for Holstein

open access: yesThe Iraqi Journal of Veterinary Medicine, 2006
A total of 16678 records of age at first calving and ages at next calving , in addition to 14058 records of calving interval belonged to Holstein cows were analysed over period from 1992 to 2003 , at the Nasr Dairy Cattle Station, United Company for ...
F. R. Al-Samarai
doaj   +1 more source

Relationships Between Conformation and Calving Interval in Holstein Cows

open access: yesJournal of Dairy Science, 1986
Type information collected by the Holstein Association of Canada from 1976 to 1983 was matched with calving interval records from the Record of Performance program of Agriculture Canada. Type traits considered were final class, major scorecard breakdown traits (general appearance, dairy character, capacity, rump, feet and legs, mammary system, fore ...
E, Dadati, B W, Kennedy, E B, Burnside
openaire   +2 more sources

Factors Affecting Calves Suckling Behaviour

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The aim of paper was to assess effects of environmental and physiological related factors on suckling behaviour patterns. The study was carried out on 120 Romanian Spotted calves.
Radu I. Neamt   +3 more
doaj  

Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties [PDF]

open access: yesSelekcija i Semenarstvo, 2018
The analysis included 433 daughters of 10 bulls, calving for the first time in the period from 2007 to 2014, on 6 dairy farms of the Agricultural Corporation Belgrade AD.
Mićić Nenad   +6 more
doaj  

Additive genetic, non-additive genetic and permanent environmental effects for female reproductive performance in seasonal calving dairy females

open access: yesIrish Journal of Agricultural and Food Research, 2016
Excellent reproductive performance (i.e. 365-day calving interval) is paramount to herd profit in seasonal-calving dairy systems. Reproductive targets are currently not being achieved in Irish dairy herds.
Kelleher M.M.   +3 more
doaj   +1 more source

Insight into the reproductive performance of Murrah buffaloes based on RNA sequencing analysis

open access: yesFrontiers in Animal Science
Late sexual maturity and prolonged postpartum ovarian acyclicity are responsible for longer non-productive periods, thereby compromising the economic viability of buffalo farming.
Poonam Sikka   +5 more
doaj   +1 more source

Environmental Factors Affecting Performance Traits of Sahiwal Cattle in Pakistan [PDF]

open access: yesPakistan Veterinary Journal, 2012
Data on 23925 lactations of 5897 Sahiwal cows in five Government herds of Punjab (Pakistan) viz. Livestock Experiment Station (LES) Allahdad, LES Bahadurnagar, LES Fazalpur, LES Jahangirabad and LES Khizerabad (1964-2004) were collected to document the ...
Z. Rehman*§ and M. S. Khan
doaj  

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