Results 21 to 30 of about 40,862 (248)

Excessive lipid contents in immature oocytes from repeat breeder dairy heifers [PDF]

, 2006
The repeat breeding problem in cattle is widespread among all the heavy dairy breeds in cattle and is being considered as a major problem throughout the world. The aetiology of the repeat breeding is of various origins.
Awasthi, Hitesh
core   +1 more source

Genetic parameters of a biological lactation model: early lactation and secretion rate traits of dairy heifers

Animal, 2009
Early lactation parameters are difficult to estimate from commercial dairy records due to the small number of records available before the peak of production.
G.E. Pollott
doaj   +1 more source

Nutritional and productive performance of purebred Nellore heifers and crossed with Brangus and Braford finished in a feedlot system

Anais da Academia Brasileira de Ciências
This study evaluated the nutritional and productive performance of Nellore purebred heifers and crossbred Brangus x Nellore (BGNE) and Braford x Nellore (BFNE) in a feedlot system.
FELIPE C. BENTO, KAMILA A.K. DE MORAES, CLÁUDIO VIEIRA DE ARAUJO, VINÍCIUS AUGUSTO MACHADO, NATAN L. CECCONELLO, LORRAYNE O. DA CUNHA, JARLIANE DO NASCIMENTO SOUSA, KARINE R. DOS SANTOS NAVES, JULIANA C. ORTELAM, LEANDRO F. MORENO, EDUARDO HENRIQUE B.K. DE MORAES   +10 more
doaj   +1 more source

Relationship between Growth Pattern, Age at First Calving and Next Reproduction in Holstein Heifers

Journal of Animal Reproduction and Biotechnology, 2015
Growth rate during rearing, which varies depending on provided nutrition, has been related with age at 1st calving (AFC). This study investigated the effect of upgrowth parameters during the rearing period on the reproduction of nulliparous Holstein ...
Hyun-Joo Lim, Ho-Beak Yoon, Seok-Ki Im
doaj   +1 more source

Response to kisspeptin and gonadotropin-releasing hormone agonist administration in Holstein-Friesian dairy heifers with positive or negative genetic merit for fertility traits

Journal of Dairy Science, 2022
: Previous research has identified that Holstein-Friesian dairy heifers with positive (POS) genetic merit for fertility traits (FertBV) reach puberty earlier than heifers with negative (NEG) FertBV.
H.E. Flay, C.B. Reed, B. Kuhn-Sherlock, C.V.C. Phyn, C.R. Burke, S. Meier, I.J. Clarke   +6 more
doaj   +1 more source

Growth performance of neonatal Holstein heifers fed acidified waste milk containing essential oil blend and encapsulated butyrate alone or in combination

Journal of Dairy Science
: Previous research demonstrated the growth-promoting benefits of an essential oil and oligosaccharide blend (Stay Strong, Ralco, Inc.; EO) or an encapsulated sodium butyrate (C4; Ultramix GF, Adisseo, Inc.) fed to neonatal calves. The possibility exists
Ting Liu, Zhihao Luo, Peng Li, Shuru Cheng, Jianping Zhu, David.P. Casper   +5 more
doaj   +1 more source

The influence of body and metabolic parameters in the period before sexual maturation in heifers on the lameness score during the first lactation [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi
The aim of this research was to examine the relation between body and metabolic parameters in 105 young Holstein-Friesian cows in the period before puberty and locomotion score (LS) in the first lactation.
Nedim ZAHIROVIĆ, Bojan TOHOLJ, Ozren SMOLEC, Marko CINCOVIĆ   +3 more
doaj   +1 more source

Genetic Parameters, Linear Associations, and Genome-Wide Association Study for Endotoxin-Induced Cortisol Response in Holstein heifers

Animals
Lipopolysaccharide (LPS) endotoxin is a well-characterized microbe-associated molecular pattern (MAMP) that forms the outer membrane of both pathogenic and commensal Gram-negative bacteria.
Bruno A. Galindo, Umesh K. Shandilya, Ankita Sharma, Flavio S. Schenkel, Angela Canovas, Bonnie A. Mallard, Niel A. Karrow   +6 more
doaj   +1 more source

The Herfindahl neutral point: A firm‐level threshold for managing market concentration with evidence from US hog packing

American Journal of Agricultural Economics, EarlyView.
Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley   +1 more source

Descriptive, comparative, and functional anatomy of the facial musculature in cattle (Bos taurus)

The Anatomical Record, EarlyView.
Abstract Facial expressions can provide insight into animal emotions and pain, but no standardized system for assessing the entire facial display in cattle (Bos taurus Linnaeus) exists. The Facial Action Coding System (FACS), originally developed for humans, identifies distinct facial movements based on mimetic muscles.
Maja Söderlind, Bridget Cain, Katrina Ask, Jean‐Francois Valarcher, Elin Hernlund, Pia Haubro Andersen, Marie Rhodin   +6 more
wiley   +1 more source