Dall'11 aprile 2003 sono stati pubblicati 7700 articoli

AGGIORNAMENTO SCIENTIFICO PERMANENTE IN MEDICINA VETERINARIA

   Note tecniche

Questo archivio bibliografico contiene tutti i lavori scientifici pubblicati dal 1987 dalle riviste edite da SCIVAC prima e da EV srl poi, e lavori reperiti nella letteratura internazionale a partire dal 2001 in avanti. Per tutti i lavori è disponibile l'abstract, mentre per quelli italiani è disponibile anche il PDF originale (dal 1995).
La parola digitata nel campo [parola chiave] viene cercata in
[autori]
[titolo]
[abstract]
[parole chiavi]
Agendo sugli altri operatori (data, specie animale, rivista) si può rendere la ricerca più rapida e mirata.

  Riviste Italiane Indicizzate

Cinologia
Collana di Radiologia Clinica Ippologia
Large Animals Review
Medicina Felina
Notiziario Farmaceutico
Quaderni di Dermatologia
SISCA Observer


Totale Riviste pubblicate : 4831. Questa pagina mostra gli ultimi lavori inseriti.

×

Attenzione

JUser: :_load: non è stato possibile caricare l'utente con ID: 362

Sabato, 06 Aprile 2019

Kul E. et al.

Vota questo articolo
(0 Voti)

Relatiosnship between milk insuline-like growth factor-I (IGF-I) concentration and body condition score with reproductive performance and milk yield in Jersey cows

  • Riferimento: Large Animal Review 2018; 24: 65-70
  • Abstract: Introduction - One of the most important hormones affecting reproductive and milk yield is insulin-like growth factor I (IGFI). IGF-I is closely related to nutritional status and the post-partum ovarian activity in dairy cows. It also stimulates milk synthesis and its secretion. Body condition score (BCS) is a useful management tool routinely used to predict body fat storage and energy status in dairy cows and has a strong influence on milk production and reproductive efficiency for the upcoming lactation after calving. Many publications have been available on BCS and serum or plasma IGF-I in Holstein cows. However, the information regarding the milk of Jersey cows has been limited. Therefore, further studies have been required to reveal the effect of IGF-I and BCS on reproduction and milk yield traits of this breed. Aim - This study was conducted to investigate the relationships between milk IGF-I concentration and body condition score (BCS) with reproduction performance and milk yield of Jersey cows raised at Karakoy State Farm in Samsun. Materials and methods - The mean milk IGF-I concentration and BCS were calculated by taking the mean of the three lactation periods (70±14, 140±14, and 210±14 days) using the repeated measures analysis procedure. The enzyme-linked immunosorbent assay (ELISA) method was applied for milk IGF-I analyses. BCS was assessed using a scale of 1 to 5 points with 0.25 unit increments. Results and discussion - The effects of stage of lactation on IGF-I and BCS classes were significant (P<0.001). The effects of mean IGF-I concentration on interval calving to first service (ICFS) (0.041), calving interval (CI) (0.042), and dry period (DP) (0.030) were found statistically important. Significant correlations were also determined between mean IGF-I and ICFS (- 0.184), CI (-0.183), or lactation length (LL) (-0.155), and ICFS, CI, and LL were found to be shorter in cows with higher IGFI. Both reproduction and milk yield traits were not affected by BCS. Conclusions - The results of the study
  • Note: //
  • Specie: animali da reddito
  • Anno: 2018
  • Rivista: Large Animals Review
Letto 606 volte Ultima modifica il Sabato, 06 Aprile 2019

vetchannel.jpg

eveditoria Editoria Scientifica

0
Shares
0
Shares