Impact of piglet birthweight and sow parity on mortality rates, growth performance, and carcass traits in pigs

Abstract

A total of 5502 piglets from 435 sows were selected for evaluation of the effect of piglet birthweight and sow parity on mortality rate (MR), growth performance, and carcass traits in pigs. Piglets were distributed into one of eight categories according to their weight (<600, g) and sows were classified according to parity (1-5). The maximum MR during lactation (day 0 to day 21) was found in category <600 g, whereas the lowest was observed in categories ≥1401 g. Pigs with greater body weight (BW) at birth were equivalently greater until 59 days of age. Average daily weight gain (ADG) was improved by increasing piglet birthweight between 0 and 21 days as indicated by a linear regression effect. After weaning, this effect was reduced up to 168 days, indicated by a quadratic, as opposed to linear, regression effect. The increase in growth rates corresponded to improved lean meat content and hot carcass weight. Increasing sow parity corresponded to a quadratic improvement of BW and ADG during lactation, but not after weaning. However, the improved pre-weaning performance was concomitant with a linear increase of within-litter BW and ADG variation. No effect of parity was observed on carcass traits. Piglet birthweight and sow parity influence litter postnatal development, mainly during early life. After weaning, these effects are less evident with a minor impact on carcass traits.

Effect of drying and/or warming piglets at birth on rectal temperature over the first 24 h after birth

“…The data set was divided into three birth weight categories: light (<1.0 kg), medium (1.0–1.5 kg), or heavy (>1.5 kg). The maximum weight for the light category (i.e., 1.0 kg) represented the birth weight below which preweaning mortality increases substantially ( Zotti et al, 2017 ). The minimum weight for the heavy category (i.e., 1.5 kg) represented the weight above which preweaning mortality is relatively unaffected by birth weight ( Zotti et al, 2017 ).…”

The Weights of Male Crossbreed Nursing Piglets After Given Feed Enzymes and Turmeric Flour

“…Pemeliharaan fase prestarter-starter sampai fase grower awal sering disebut periode nursery. Periode nursery berlangsung selama 5-7 minggu, dimulai saat anak babi disapih pada umur 4 minggu dengan bobot badan sekitar 7-9 kg sampai umur 9 minggu dengan bobot badan 22-24 kg (Zotti et al, 2017). Periode ini sangat penting untuk menghasilkan anak babi yang sehat dengan performans yang baik, untuk keberhasilan pemeliharaan fase berikutnya (Jacela et al, 2009).…”

“…Penyapihan menyebabkan anak babi mengalami stress, apabila tidak ditangani dengan baik dapat menyebabkan turunnya feed intake, bobot badan dibawah standard dan feed conversion ratio membesar (Zotti et al, 2017). Kondisi ini dapat berlanjut pada gangguan pertumbuhan, sakit bahkan kematian anak babi Kegagalan pada periode nursery dapat diantisipasi dimulai dari metode penyapihan yang baik manjemen pemeliharaan dan pemanfaatan teknologi pakan dengan penggunaan feed aditif (Kouamo, 2015) seperti enzim untuk memacu pertumbuhan (Alagawany et al, 2018).…”

Enriquecimento Ambiental Para Grandes Felinos Em Cativeiro: Revisão De Literatura

“…Através da genética, foi possível selecionar animais com características desejáveis ao aumento da produção, tais como, aumento da taxa de crescimento, eficiência alimentar e habilidade materna (ASSOCIAÇÃO BRASILEIRA DE CRIADORES DE SUÍNOS, 2014). Da mesma forma, as matrizes suínas foram selecionadas para o aumento da prolificidade, apresentando taxas de ovulação cada vez maiores e consequentemente, leitegadas maiores, tornando-se as chamadas fêmeas hiperprolíficas (ALMEIDA, 2009;ZOTTI et al, 2017). No Brasil, os resultados desta seleção genética podem ser percebidos pelo aumento do número de leitões nascidos por leitegada, cuja média em 1992 era de 10,9 e em 2017, passou a ser de 12,61 (PANZARDI, 2010; ASSOCIAÇÃO BRASILEIRA DE CRIADORES DE SUÍNOS, 2017).…”