Odnos telesne kondicije i parametara krvi u peripartalnom periodu, proizvodnih i reproduktivnih rezultata koza alpske rase

Abstract

Radi ispitivanja odnosa telesne kondicije (OTK) i metaboličkih parametara krvi i proizvodnih i reproduktivnih rezultata u različitim fiziološkim fazama, izvedeno je istraživanje na dve grupe od ukupno 50 sjarenih primiparih i multiparih koza alpske rase. OTK je izvedena metodom Villaquiran-a i sar. (2004) četiri puta za svaku od grupa 10 do 15 dana pre, 10 do 15 dana i 30 dana po partusu i 10 do 15 dana pre zasušenja, a u prva tri termina je uzeta i krv iz v. jugularis za utvrđivanje koncentracija glukoze, ukupnih proteina (UP), albumina, uree, β-hidroksibuterne kiseline (BHBA), neesterifikovanih masnih kiselina (NEFA), kalcijuma i fosfora. Zabeleženi su ukupna količina (KM) i sastav mleka: udeo proteina (MP), masti (MM), laktoze (L) i suve materije (SM) u laktaciji, broj jaradi po kozi (BJ), telesna masa (TM) na rođenju i 30. dana, dužina servis perioda (SP) i težina porođaja. Značajnost postoji između UP 15 dana pre i 15 i 30 dana po jarenju (F=2,675, p<0,05; F=4,710 i F=3,834, p<0,01, redom), Ca 30 dana posle (F=2,925, p<0,05) i BHBA 15 dana posle (F=2,508, p<0,05). Ustanovljena je korelacija između OTK 30 dana posle i KM (r=0,302, p<0,05), 15 dana posle i SM (r=0,315, p<0,05) i 15 dana pred partus i BJ (r=0,282, p<0,05), kao i SP (r=0,460, p<0,01) i TM na rođenju (r=0,307, p<0,05). Paritet je u korelaciji s KM, BJ, TM i SP (r=0,774; r=0,610; r=0,588; r=0,833, p<0,01, redom), a u negativnoj s L (r=-0,297, p<0,05). BJ je u korelaciji s SP (r=0,630, p<0,01), KM (r=0,547, p<0,01) i MM (r=-0,294, p<0,05). SP je u korelaciji s TM (r=0,616, p<0,01) i KM (r=0,704, p<0,01), MM s L (r=0,316, p<0,05) i SM (r=0,592, p<0,01), a L s SM (r=0,386, p<0,01). Koncentracije parametara krvi variraju u peripartalnom periodu, uz značajne razlike između prvojarki i višejarki i imaju uticaj na proizvodnju i reprodukciju, i mogu biti korisni u prevenciji zdravstvenih, reproduktivnih i proizvodnih problema, iako je nađeno da OTK kod koza nije od značaja kao prediktor proizvodnje i kvaliteta mleka.

In order to examine the relationship between body condition score (BCS) and metabolic parameters of blood and production and reproductive results in different physiological phases, a study was performed on two groups with 50 pregnant primiparous and multiparous Alpine goats. BCS was performed by the method of Villaquiran et al. (2004) four times for each of the groups 10 to 15 days before, 10 to 15 days and 30 days after parturition and 10 to 15 days before drying, when in the first three terms blood was taken from v. jugularis to determine glucose levels, total protein (TP), albumin, urea, β-hydroxybutyric acid (BHBA), non-esterified fatty acids (NEFA), calcium and phosphorus. Total amount (MY) and milk composition were recorded: protein content (MP), fat (MF), lactose (L) and dry matter (DM) during lactation, number of kids per goat (NK), body weight (BW) at birth and 30 days of age, length of service period (SP) and severity of birth giving. Significance was found between TP 15 days before and 15 and 30 days after kidding (F=2.675, p<0.05; F=4.710 and F=3.834, p<0.01, respectively), Ca 30 days after (F=2.925, p<0.05) and BHBA 15 days after (F=2.508, p<0.05). A correlation was found between BCS 30 days later and MY (r=0.302, p<0.05), 15 days after and DM (r=0.315, p<0.05), and 15 days before kidding and NK (r=0.282, p<0.05), as well as between BCS and SP (r=0.460, p<0.01) i BW at birth (r=0.307, p<0.05). The parity is correlated with MY, NK, BW and SP (r=0.774; r=0.610; r=0.588; r=0.833, p<0.01, respectively), and negatively with L (r=-0.297, p<0.05). NK is correlated with SP (r=0.630, p<0.01), MY (r=0.547, p<0.01) and MF (r=-0.294, p<0.05). SP is correlated with BW (r=0.616, p<0.01) and MY (r=0.704, p<0.01), MF with L (r=0.316, p<0.05) and DM (r=0.592, p<0.01), as well as L with DM (r=0.386, p<0.01). Blood parameter levels vary in the peripartum period, with significant differences between primiparous and multiparous goats and have an impact on production and reproduction, and therefore may be useful in preventing health, reproductive and production problems, although BCS in goats has not been found to be important as a predictor of milk production and quality.