Elena Costăchescu


RESEARCH REGARDING THE LACTATING PERIOD OF THE BITCH

Elena Costăchescu, G. Hoha, Lenuţa Fotea

Abstract
Breastfeeding shows for all species the most important period for both the female and the new generation of products. Milk produced by a bitch, by his the qualities it is, offers puppies a considerable growth rate.
Research conducted on 10 female breeds: German Shepherd Dog, Caucasian Shepherd, Labrador and West terrier showed qualitative differences in colostrum and matern milk. The differences were both studied the chemical composition of each race and in different periods of lactation. Protein percentage was higher in colostrum at 8.1% in female German Shepherd breed and lowest 3.7% in West terrier breed. Regarding the entire period of lactation, the highest percentage of protein was recorded at Caucasian Shepherd females (7.5%) and the lowest breed West terrier (3.5%).
Correlations between body weight and quantity of milk is strongly positive, with a value of 0.72, and also the correlation between the amount of milk and prolificacy was positive, being +0.61.

Key words: Breastfeeding, bitch, chemical composition correlation


CONSIDERAŢII PRIVIND PERIOADA DE LACTAŢIE LA CĂŢEA

Elena Costăchescu, G. Hoha, Lenuţa Fotea

Rezumat
Alaptarea prezinta pentru toate speciile cea mai importanta perioada atāt pentru femela,cāt si pentru noua generatie de produsi. Laptele produs de catea, prin calitatile pe care le are, asigura puilor o viteza de crestere apreciabila.
Cercetarile efectuate pe 10 femele din rasele: Ciobanesc german, Ciobanesc caucazian, Labrador si West terrier au evidentiat diferente calitative ale colostrului cāt si a laptelui matern. Diferentele au fost atāt la compozitia chimica la fiecare rasa studiata cāt si īn diferite perioade ale lactatiei. Procentul de proteina a fost cel mai ridicat la colostru de 8,1% la femelele din rasa Ciobanesc german si cel mai mic de 3,7% la rasa West terrier. Īn privinta Pe īntreaga perioada de alaptare, valoarea cea mai mare a procentului de proteina a fost īnregistrata la femelele din rasa Ciobanesc caucazin (7,5%), iar valoarea cea mai mica la rasa West terrier (3,5%).
Corelatiile dintre greutatea corporala si cantitatea de lapte este puternic pozitiva, avānd valoarea de 0,72; de asemeni si coralatia dintre cantitatea de lapte si prolificitate a fost pozitiva, fiind de +0,61.

Cuvinte cheie: ovine, dezvoltare corporala, factori de influenta